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(5+3)/2-3= 2010-12-10
chantal pose la question :
(5+3)/2-3=
Claude Tardif lui répond.
Qui suis-je? 2007-02-28
un parent pose la question :
bonjour, le problème est le suivant : Qui suis-je? Mon tiers augmenté de mes deux cinquième est égal à la moitié de mon triple Serez t'il possible d'avoir la solution à ce problème et que je puisse y comprendre un peu quelque chose quand même Je vous remercie d'avance et espère bientôt vous lire
Claude Tardif lui répond.
Mon problème (né d'un retour aux conclusions du prix Nobel d'économie ) revisité 2005-09-27
Nzitat pose la question :
Soit L un sensemble de distributions de probabilités. Désignons par p une distribution de probabilité quelconque. En clair p=(p0,..., pm) où m >0 est fini. Appelons Vi, i=1,...,n, une fonction définie sur L et à valeurs dans l'ensemble des réels. De même Wj, j=0,...n est une fonction définie sur L et à valeurs dans l'ensemble des réels. Vi, Wj sont définies ainsi pour tout p:....
Claude Tardif lui répond.
problème de math 2005-06-03
Nadia pose la question :
1* La somme de 3 multiples de 6 consécutifs est 72.Quels sont ces nombres?

2* Dans la fabrication d’un alliage, on utilise 5g de manganèse pour 32g de fer.
a) Quelle quantité de manganèse retrouve-t-on dans un morceau de cet alliage s’il contient 512g de fer? 00015166

b) Quelle est la masse totale de ce morceau si le fer et le manganèse en sont les seules composantes?

3*...

Claude Tardif lui répond.
J'ai deux fois l'âge que tu avais quand 2004-12-03
Un eleve pose la question :
Julien dit à Nicolas:"J'ai deux fois l'âge que tu avais quand j'avais l'âge que tu as.Quand tu auras l'âge que j'ai la somme sera égale à 63".A toi de trouver l'âge de Julien et de Nicolas.
Claude Tardif lui répond.
Un problème de math 2004-09-10
Sophie pose la question :
(V est en fait le signe de la racine carrée)

(3 / V27) x ( V75 ) = ???

Claude Tardif lui répond.
Un problème mathématique 2002-04-23
Mylène pose la question :
En me servant de ces chiffres 1 2 3 4 5 6 je dois les utiliser seulement qu'une fois en faisant l'équation suivante.
? X ?   X  ? __    __    ?   ? X ?   = 2 

Claude Tardif lui répond.
A word problem 2022-01-29
Ric pose la question :
Box of oranges weighs 9 pounds. 2/3 of oranges eaten. Box and remaining oranges weighs 4 pounds. What is weight of box when empty?
Penny Nom lui répond.
A Word Problem 2021-12-17
Bryson pose la question :
Yolanda, Brian, and Charlie have a total of in their wallets. Brian has less than Yolanda. Charlie has times what Brian has. How much do they have in their wallets?
Penny Nom lui répond.
A word problem 2021-07-28
Isaac pose la question :
The average mass of a group of children is 50 kilograms. Todd, who has a mass of 62 kilograms, then joins the group. This raises the average mass of the group to 52 kilograms. How many children were in the original group
Penny Nom lui répond.
New pool liner 2021-07-14
Kareena pose la question :
I have a rectangular prism shaped pond that are 4ft by 8ft by 2ft. My pond is lined on the sides and bottom with a pool liner so that it doesn't leak (the top of the pool does NOT have a liner). I am redoing my pool and would like to increase the size of the pond. Each dimension will increase by the same amount, and the size of the pool liner will double. How much I am increasing each dimension of the pond? Give an exact answer and than an approx. answer rounded to the nearest tenth.
Penny Nom lui répond.
Word problem 2021-05-07
Donelle pose la question :
Freddy is three times as old as Mary. Mary is twice as old as Jack. Jack is 11 years old. How old is Freddy?
Penny Nom lui répond.
The maximum area of a garden 2021-04-28
Lexie pose la question :
suppose you want to make a rectangular garden with the perimeter of 24 meters. What's the greatest the area could be and what are the dimensions?
Penny Nom lui répond.
Four friends in a race 2021-04-06
Angel pose la question :
Four friends ran a race:
Ben finished seven seconds ahead of Mike.
Noel finished three seconds behind Sam.
Mike finished five seconds behind Noel.
What will be the formula to support their place?

Penny Nom lui répond.
Comparing two job offers 2020-11-17
Selena pose la question :
Raja has been offered two jobs.
Each of these jobs takes 24 weeks to complete.
One job pays $3440 every 8 weeks. The other job pays $2700 every 6 weeks. Raja wants to accept the job that pays more per week.
Show how to use equations to help Raja make her choice.

Penny Nom lui répond.
A word problem with three variables 2020-10-18
Yesenia pose la question :
Carmen, Austin, and Trey have a total of $128 in their wallets. Trey has $10 more than Carmen. Austin has 4 times what Trey has. How much do they have in their wallets?
Penny Nom lui répond.
A confusing problem 2020-10-01
Kgaugelo pose la question :
a triangle has the vertices A(-4;-3),B(x;y)and C(2;1). Determine the coordinates of B if the equation of the line BC is y=5x-9
Harley Weston lui répond.
A word problem with no algebra 2020-08-11
Julie pose la question :
At 3pm, Bruce headed north at 30 km/hr. 2 hours later, Lucy headed south at 40 km/hr. At what time will they be 340 km apart
Penny Nom lui répond.
A word problem involving linear equations 2020-06-22
Allie pose la question :
The length of a rectangular swimming pool is p m and its width is q m. Its given tht the length of the swimming pool is twice its with. if the perimeter of the swimming pool is 150 m, find the values of p and q this is in the chapter linear equations
Penny Nom lui répond.
A word problem with fractions 2020-06-21
Sthantsa pose la question :
I'm stuck with this question, I don't know where to begin because i really don't Know where to start.

Jessie and Thulani each has a sum of money. Jessie’s amount is 2/5 that of Thulani’s. If Thulani were to give Jessie R198, then his remaining amount will be 6/8 that of Jessie’s amount.
How much does Jessie have originally??

Penny Nom lui répond.
Signs at 1/3 mile intervals 2020-05-03
Heather pose la question :
The butterfly garden in St. Thomas gardens is a three mile loop at every 1/3 there is a sign along the loop to mark each 3rd of a mile along the loop if Melanie is standing next to the 7th sign at what mile is she?
Penny Nom lui répond.
How many boxes will fit in a closet? 2020-04-24
Jordan pose la question :
Janelle has some boxes that are 43cm long, 23cm wide and 18cm tall. She wants to store them in a closet in her basement that is 2.2m tall, 1.1m wide, and 0.8m deep. What is the maximum number of boxes that Janelle can possibly fit in the closet?
Penny Nom lui répond.
Building a house in one year 2020-04-22
Fify pose la question :
If it takes 8 men to build a house in 450 days. How many men would it take to build the house in 365 days? Is there a specific method to calculate this please?
Penny Nom lui répond.
A rectangular garde 2020-04-10
Denise pose la question :
In a rectangular garden a person says "if I made that bed 2 feet wider and 3 feet longer it Would have been 64 sq,ft bigger. But if it had been 3 feet wider and two feet longer It would have been 68 sq.ft bigger.
What is the length and width of the garden bed?

Penny Nom lui répond.
Setting up a linear equation 2020-04-10
Jessie pose la question :
Michaela and Aleah play on the same basketball team. In one game, Michaela scored one fifth of the teams points and Aleah scored one tenth of the teams points. Together, they scored a total of 42 points. How many points did the team score?

I can't figure out how to put together the equation with the given variables. I have to show the work and I also need to know how to make that kind of equation. Thanks!

Penny Nom lui répond.
A pond in a garden 2020-04-09
Jin pose la question :
c) I have a large square pond set inside a square garden: both the pond and the garden have sides which are a whole number of metres, and outside the pond, the garden is grassed over. The area covered by grass is 188 square metres. Find the area of the pond. (5 marks)
Penny Nom lui répond.
Aaron and Bill's ages 2020-03-12
Heather pose la question :
My granddaughter had this third grade math problem. Aaron is 4 times as old as his brother Bill. In ten years Aaron will be twice Bills age. What are their ages?
Penny Nom lui répond.
Fireman Fred needs to stay fit 2020-03-02
Chamundeswari pose la question :
How do I explain this problem to a year 3 kid?

Fireman Fred needs to stay fit for his job. He runs 4.5km, 4 mornings, a week . if it takes him 4 minutes and 15 seconds on average to run 1km, how much time does he spend running over 4 weeks?

Penny Nom lui répond.
A question about fractions 2020-01-26
Awotile pose la question :
A fraction whose denominator is more than the numerator is double when the numerator is increased by 6 and the denominator is increased by 5 find the original fraction?
Penny Nom lui répond.
The difference between two number is 7 2020-01-07
Jaypercey pose la question :
the difference between two number is 7 find the two number if the larger 3times the smaller
Penny Nom lui répond.
A circle, a point, and a tangent line 2019-12-31
Faisal pose la question :
A circle has radius 10 units and passes through the point (5,-16). The x-axis is a tangent to the circle. Find the possible equations of circle?
Penny Nom lui répond.
Sabrina's age 2019-12-31
Nakyi pose la question :
The sum of Sabrina’s age and twice her sister’s age is equal to their mom’s Age. If Sabrina’s sister is two years older than her and their mom is 37, how old is Sabrina?
Penny Nom lui répond.
Caleb age and Juliet age add up to 25 years. 2019-11-22
tolulope pose la question :
Caleb age and Juliet age add up to 25 years. eight years ago,Caleb was twice as old as Juliet. how old are they now.
Penny Nom lui répond.
A four person race 2019-11-19
Juvy pose la question :
Ben finished seven seconds ahead of Mike.
Noel finished three seconds behind of Sam.
Mike finished five seconds behind Noel.
In what order did the friends finish the race?

Penny Nom lui répond.
Beginning algebra 2019-11-19
Maya pose la question :
Two numbers have a sum of 57. Three times the first number is 13 less than the second number. Find the numbers.
Use let statements to help you solve. (Grade 9 math)
-Maya (help would be appreciated)

Penny Nom lui répond.
The sum of the ages of Ruth and her mother is 77 years. 2019-11-06
Lydia pose la question :
The sum of the ages of Ruth and her mother is 77 years. The difference in their ages is 27 years. How old is each?
Penny Nom lui répond.
Alex rents a car for one day 2019-10-31
Arshia pose la question :
Alex rents a car for one day. The charge is $25 plus $0.20 per mile. Alex wants to spend exactly $110. How many miles can he drive?
Penny Nom lui répond.
The difference of two numbers is 42 2019-10-14
Patrick pose la question :
The difference of two numbers is 42 and the larger number is 8/5 of the smaller number. Find the two numbers.
Penny Nom lui répond.
Mandy walks to work 2019-09-15
Kenneth pose la question :
Mandy walks to work at a constant rate. One-third of the way to work, she passes a bank. Three-fourths of the way to work, she passes a book store. At the bank her watch reads 7:52 A.M., and at the book store it reads 8:02 A.M. At what time is Mandy one-half of the way to work?
Harley Weston lui répond.
The number of integers that satisfy some conditions 2019-09-10
Ryu pose la question :
Using only the digits 0 1 2 3 4 5 6 7 8 9 without repetition, how many integers are:
(a) Greater than 999, less than 10,000, start with an even digit and are even?
(b) Greater than 999, less than 10,000, start with an odd digit and are odd?
(c) Greater than 999, less than 10,000, start with an even digit and are odd?
(d) Greater than 999, less than 10,000, start with an odd digit and are even?

Penny Nom lui répond.
Problem solving 2019-09-08
Arunsi pose la question :
When a fifth of a certain number is added to 3 the result is 17. What is the number?
Penny Nom lui répond.
Average savings 2019-09-06
Puchu pose la question :
A student was saving an average of £2 per week for 25 weeks. He then found a part time job and after total of 45 weeks his average savings rose to £9 per week How much did he save over 20 weeks after finding job?
Penny Nom lui répond.
David Is 6 years older than his sister Delia 2019-08-27
Abigail pose la question :
David Is 6 years older than his sister Delia. In 10 years the sum of There age 52. how old are David and Delia today
Penny Nom lui répond.
The maximum volume of a cone 2019-07-14
A student pose la question :
find the maximum volume of a cone if the sum of it height and volume is 10 cm.
Penny Nom lui répond.
Forty foot and 9 spacers 2019-06-28
Christopher pose la question :
Ok I've got forty foot and 9 spacers one each end and 7 between what is the distance between the seven in the middle
Penny Nom lui répond.
150 litres has been drawn from a tank 2019-06-12
Eke pose la question :
When 150 litres has been drawn from a tank, it is 3/8 full, how many litres will the tank hold?
Penny Nom lui répond.
Pennies, nickels, dimes, and quarters 2019-05-09
william pose la question :
Ann has 177 coins (pennies, nickels, dimes, and quarters)
Her total value is $19.90
She has the same number of nickels as dimes.
She has the same number of quarters as dimes.

How many of each does she have?

Penny Nom lui répond.
Three friend's ages 2019-04-25
Lemicio pose la question :
Janet is 10 years older than Karin, who is twice the age of Josef. If their combine age is 55, how old is each one now?
Penny Nom lui répond.
When is John's next birthday on a Friday? 2019-03-15
Darek pose la question :
The question is the following:
Last Friday 4th of April of 2014 John was 40 years old. How old will John be the next time when his birthday fell on Friday?
Thanks for your help

Penny Nom lui répond.
A word problem 2019-02-24
Briana pose la question :
When 4 times the number increased by 30, the answer is the same as when 70 decreased by the number. What was my number?
Harley Weston lui répond.
Macy's coin collection 2019-01-30
Sariah pose la question :
Macy's coin collection has 2 pennies for every nickel. If she has 60 coins that are pennies or nickels, how many nickels does she have?
Penny Nom lui répond.
How many solutions does 3 (x + 4) = 3 x + 4 have? 2018-12-01
Milan pose la question :
how many solutions does 3 (x + 4) = 3 x + 4 have?
Penny Nom lui répond.
Terry was two-thirds as old as Nia 2018-11-19
Makenzy pose la question :
four years ago, terry was two-thirds as old as nia. now terry is three-fourths as old as nia. how old is each now
Penny Nom lui répond.
The price of eggs rises 10 cents per dozen 2018-11-10
Maddie pose la question :
Hi! I'm currently struggling with a word problem that says: "If the price of eggs rises 10 cents per dozen, one will be able to get 2 dozen fewer eggs with $6.00 than was possible at the lower price. What is the lower price? We are working on completing the square and all of the problems I've done so far in this chapter require using that method. If possible and needed, could you explain how to set up the equation? Thank you so much! I appreciate all your help!!
Penny Nom lui répond.
How many students passed the test? 2018-07-20
florian pose la question :
In Mr. Edgecomb's math class, 30 students took an exam on statistics. If the average passing grade was 84, the average failing grade was 60, and the overall average was 80, how many students passed the test?
Penny Nom lui répond.
Two odd integers 2018-06-04
Pleroma pose la question :
The product of two alternate odd integers exceeds three times the smaller number by 12. What is the larger number?
Penny Nom lui répond.
$96 is 66 2/3% of what dollar amount? 2018-05-31
mary pose la question :
$96 is 66 2/3% of what dollar amount?
Penny Nom lui répond.
Soccer fans and cricket fans 2018-05-06
Chibo pose la question :
In a survey of 60 sport fans, 45 enjoy soccer, 35 enjoy cricket and 10 do not enjoy either soccer or cricket, but some other sports.What percentage of sports fans enjoys both soccer and cricket?
Penny Nom lui répond.
Nickels, dimes, and quarters 2018-04-20
Patti pose la question :
A copy machine accepts nickels, dimes, and quarters. After 1 hour, there are 30 coins total, and their value is $5.10. How many nickels, quarters, and dimes are in the machine? (Hint: There are exactly five different solutions.)
Penny Nom lui répond.
Graham's money box 2018-04-12
Tasnim pose la question :
Graham's money box consists of sh.10 and sh.5 coins. There are 24 coins and it's total value is 150. Find how many of each coins are there in the box
Penny Nom lui répond.
Rolling 2 dice 2018-04-06
Jose pose la question :
Find the probability p that the sum is as stated when a pair of dice is rolled.

(a) Even and doubles.
p=

(b) Even or doubles.
p=

Penny Nom lui répond.
$525 is shared among three friends 2018-02-25
Iyanla pose la question :
If $525 is shared among three friends: Paul Katherine and Brandon so that Paul gets $15 less than Brandon and Katherine gets 4 times as much as Paul, how would I solve this equation?
Penny Nom lui répond.
How many miles did he drive in one hour? 2017-11-21
Ava pose la question :
Graham drove 42 1/3 Miles in 1 1/3 hours. How many miles did he drive in one hour?
Penny Nom lui répond.
Jesse has dimes and nickels in his piggy bank. 2017-11-18
Dee pose la question :
Jesse has dimes and nickels in his piggy bank. The number of nickels is 3 times the number of dimes. If the total amount is $8.50, how many coins are there in total?
Penny Nom lui répond.
Blair is 12 years younger than Serena right now. 2017-11-18
Dee pose la question :
Blair is 12 years younger than Serena right now. Three years ago Serena’s age was five times Blair’s age. What are their ages?
Penny Nom lui répond.
Five bales 2017-10-08
John pose la question :

two answers were given... I believe both to be incorrect.
five bales weighed two at a time: weightx2 given: 110,112,113,114,115,116,117,118,120, and 121. It stated all combinations ie: ab,ac,ad,ad,bc,bd,be, etc. to arrive at the above 10 combined weights. I come up with the following...

Bale A= 54lbs, Bale B=56, Bale C=58, Bale D=59. and Bale E=62 pounds.

A+B=110, A+C=112, A+D=, B+C=114, B+D=115 ,A+E=116 ,C+D=117, B+E=118 ,C+E=120, and D+E=121


Penny Nom lui répond.
The importance of a comma 2017-09-30
carolyn pose la question :
the equation 2y + 53 = 165 represents the situation joel spent 165 dollars on a pair of jeans and two shirts at the same price what does y represent
price of a pair of jeans
price of a shirt
amount joel spent on the shirts
number of shirts joel bought

Penny Nom lui répond.
Macy and Camile's ages 2017-09-30
carolyn pose la question :
macy is 2 years older than Camille twice the sum of their ages is 52 which equation can be used to find camilles age x
Penny Nom lui répond.
How many pet dogs? 2017-09-26
Michelle pose la question :
In 2016 there were about 135 million households in the United States. 36.5% of the households own at least one dog. On average, these households have 1.6 dogs. How many millins of pet dogs were in the United States in 2016?
Penny Nom lui répond.
How many guests were present? 2017-09-17
SM pose la question :
How many guests were present at an Italian dinner if every 2 guests shared a bowl of salad, every 3 guests shared a bowl of pasta, and every four guests shared a bowl of meatballs, and there were 65 bowls used altogether?
Penny Nom lui répond.
Peanuts in 5 bags 2017-09-17
Maria pose la question :
There are a total of 270 peanuts divided up into five different bags. The first two bags contain 174 peanuts between the two of them. The second and third bags contain 130 peanuts between the two of them. The third and fourth bags contain 86 peanuts between the two of them. The fourth and fifth bags contain 42 peanuts between the two of them. How many peanuts are in each bag?
Penny Nom lui répond.
An impossible problem 2017-09-15
Fay pose la question :
Given math homework problem of: Gary and Larry given 2 numbers and told to add together. Gary subtracted and got 14. Larry multiplied and got 799. I tried substitution:
X-Y=14 and X x Y=799
X= Y+14
(Y+14) Y=799 and here I'm stuck at Y squared+14 Y= 799
using substitution I got 47x17=799 but not 14b when subtracted. HELP?????

Penny Nom lui répond.
A police officer spots a speeding car 2017-07-20
Josh pose la question :
Marie, a police officer, spots a speeding car and starts chasing it. The speeding car travels at a speed of 130 feet per second. Marie's car reaches a constant speed of 145 feet per second 1725 feet from the start of the chase. During that time, the speeding car has traveled 3150 feet. Write a system of equations to represent this situation.
Penny Nom lui répond.
Catherine, Molly and Tom 2017-07-19
liezel pose la question :
what is the answer of this problem, If Catherine and molly has 320pesos altogether, Molly and tom have 360 in all. Tom and Catherine have 240pesos altogether.How much does each of them have?
Penny Nom lui répond.
3rd Grade math problem 2017-05-30
Angela pose la question :
Following is a problem from my 3rd grader's homework assignment:
Solve. Draw a diagram to represent the situation.
Rachel has 20 one-inch beads. She wants to use all of them to make a square picture frame. What will be the length of each side?
Find Perimeter, Area, and Side Length

Penny Nom lui répond.
Jamie has twice as many video games as Mel. 2017-04-27
John pose la question :
Jamie has twice as many video games as Mel. Together, the boys have 24 games. how many games do each boy have
Penny Nom lui répond.
A word problem about the dimensions of a lot 2017-04-16
Charlotte pose la question :
If a house is 66x78 ft, how many feet out from the house around would be an acre to not include the house
Penny Nom lui répond.
Renting an electric cart 2017-01-07
Desiree pose la question :
Vacation Rentals rents electric carts for travel on their grounds. The economy plan rents carts for $26 per day and the premium plan rents a carts for $12 per day plus a one time fee of $126.05
For how many whole days would it be cheaper to rent from the economy plan then from the premium plan?

Penny Nom lui répond.
The sum of three integers is 30 2016-12-06
Vaishnavi pose la question :
_+_+_:30. Blanks are to be filled by(1,3,5,7,9,11,13,15) and numbers can be repeated.
Penny Nom lui répond.
Three friends bought 13 books 2016-12-06
alexis pose la question :
Marina bought 4 books José bought as many books as Ben bought together the 3 friends bought 13 books how many books did Ben buy
Penny Nom lui répond.
A stone walkway around a garden 2016-11-27
Abigail pose la question :
A garden measures 12 feet by 16 feet. The family would like to add a stone walkway around the garden. This would increase the total area of to 302.25 square feet. what will be the width of the of the walkway
Penny Nom lui répond.
The weights of two boxes 2016-11-25
dearbhla pose la question :
One box weighs 3 3/7kg. Another box weighs 1 5/6 as much. How heavy is the second box?
Penny Nom lui répond.
A fish and eight parakeets 2016-11-11
Cindy pose la question :
Cindys fish weighs 8 times as much as her parakeet. Together the pets weigh 63 ounces. How much does the fish weigh?
Penny Nom lui répond.
A problem with a recipe 2016-10-31
Ted pose la question :
Recipe calls for 3 1/2 c of sugar & 4 c of water. I only have 3c of sugar how much water do I use
Penny Nom lui répond.
A word problem at the fair 2016-10-25
Rick pose la question :
Have 48 tickets to spend, have to spend them all in exactly 10 events. Rides cost 6 tickets games cost 4 tickets & treats cost 3 tickets
Penny Nom lui répond.
How many marbles does Haley have? 2016-10-19
Pat pose la question :
Sabrina has 1/4 the marbles as Haley.
They have 305 total. How many marbles does Haley have?

Penny Nom lui répond.
An airplane schedule 2016-10-14
Stephanie pose la question :
Starting at 8:00a.m., a passenger plane leaves from an airport every 6 minutes and a cargo plane leaves every 7 minutes. When is the next time these kinds of planes will leave at the same time?
Penny Nom lui répond.
Selina saved $6 on a 20% off sale 2016-10-14
Myra pose la question :
I don't know how to help my child answer this question - Selina bought a shirt on sale that was 20% less than the original price. The original price was $6 more than the sale price. What was the original price?
Penny Nom lui répond.
How far is the boat from the harbour? 2016-10-06
Karabo pose la question :
a boat sails 30 km due east from a harbour. Then it sails 40 km due north. How far is it from the harbour?
Penny Nom lui répond.
Jenny, Charles and Chase have some butterflies 2016-09-26
Kyla pose la question :
Jenny cares 7 times as many butterflies as Charles. Charles catches 2 times as much as Chase. All together they have 560 butterflies. How many butterflies does each person have? Please help, I am very confused on how to solve the problem.
Thank you!

Penny Nom lui répond.
Todd Matt and Jeff 2016-08-30
Lisa pose la question :
Three brothers spent different amounts of money on their recent vacation.
Matt spent $25 less than Todd.
Jeff spent 3 times as much as Matt.
How much did each brother spend if they spent a total of $275?

Check answer required
T= Todd

Penny Nom lui répond.
I bought 3 books for $150.00 2016-08-20
Shavon pose la question :
if i bought 3 books for $150.00 and 1 of the books cost 50% more than both other books combined what's the price of the more expensive book?
Penny Nom lui répond.
The ages of 10 children 2016-08-17
Diann pose la question :
Sum total of the ages of 10 children 10 children is 110, what are their ages if all are 2 years apart?
thank you

Penny Nom lui répond.
Carlos, Mark, Jeremy, and Alan collect Yugioh cards 2016-08-08
justin pose la question :
Carlos, Mark, Jeremy, and Alan all collect Yugioh cards. Mark has twice as many cards as Jeremy. Carlos has 3 times as many cards as Jeremy, and Alan has collected 12 less than 3 times as many cards as Jeremy. Together the four players have collected 456 cards. How many does each person have?
Penny Nom lui répond.
Which term of this sequence has value 8? 2016-07-20
Lauren pose la question :
Hi there

Which term in the sequence -2; -5/3; -4/3 ; -1; ... has a value of 8.

Since term 2 and 3 of this sequence contain fractions which can be converted to recurring decimals. What is the best way to work out the common difference here.

I do however understand that to work out the nth term of an arithmetic series, the following formula Tn = a + (n-1)d. In this series a = -2

Penny Nom lui répond.
A train from Erie to New York 2016-07-14
carol pose la question :
a train leaves Erie with twice as many women as men. At York, 17 men get on and 16 women . How many men and women were originally on the train?off. There are now the same number of men as women
Penny Nom lui répond.
Lisa went for a run 2016-07-14
Olive pose la question :
Lisa ran 3km north and then 4 km east what was her total distance
Penny Nom lui répond.
The difference between the ares of two rectangles 2016-06-09
Ingrid pose la question :
I am trying to help my son with an area question.
I have the answer, from the solutions, but I cannot figure out how to teach him.

Question:

Two rectangles have lengths 13cm and 19cm respectively.
Their total area is 376cm squared.
If both their widths are whole numbers, what is the difference in their areas?

I know that this is solvable once I determine the widths of the rectangles ,
but how do I go about finding that?

Thanks for your help

Chris Fisher and Harley Weston lui répond.
Two pieces of rope 2016-05-21
Render pose la question :
Fred cuts a 12- inch piece of rope. Then he cuts a second piece of rope that is 3/2 longer than the first piece. Is the second piece shorter or longer than the first piece? Explain.
Penny Nom lui répond.
The tens digit of a number is five times the unit digit 2016-05-19
sanjeev pose la question :
The tens digit of a number is five times the unit digit. Find the number?
Penny Nom lui répond.
A rectangular field 2016-05-07
Jan pose la question :
A rectangular field is 63m long and 21m wide. A fence of 2m in height is needed to fence the field and fencing is also required to divide the field in three square sections. There are three wooden gates measuring at 1.5m to the three sections of the field. What is the total surface area of the fence needed for fencing and diving the field?
Penny Nom lui répond.
A 3 hour river cruise 2016-05-06
Jan pose la question :
A 3 hour river cruise goes 15km upstream and then back again.The river has a current speed of 2km/h.what is the boat's speed and how long was the upstream journey?
Penny Nom lui répond.
One million is six percent of what number? 2016-04-26
Colleen pose la question :
One million is six percent of what number?
Thanks!

Penny Nom lui répond.
Dimes and pennies 2016-04-26
Renae pose la question :
Charity has 42 more pennies than dimes. Hope has 7 times as many pennies than dimes. Hope and Charity have the same number of dimes. Together they have $5.46. How many dimes and pennies do each have?
Penny Nom lui répond.
External and interior angles of a regular polygon 2016-04-19
pearl pose la question :
a polygon has n sides.The exterior angle is 8 times the interior angle
find the value of the interior angle
find the value of n

Penny Nom lui répond.
Mrs. Gibson has 3 children 2016-04-12
MJ pose la question :
Mrs. Gibson has 3 children. The older ones are twins. The youngest one is 3 years younger than the twins. If the sum of their ages is 102, how old is the youngest one?
Penny Nom lui répond.
A road trip word problem 2016-04-10
Marc pose la question :
While on a road trip I imagined this random word problem. Suppose I start a trip of 75 miles. My initial speed is 75 miles per hour. After every mile traveled I decrease my speed by one mile per hour. After the first mile I decrease my speed to 74 miles per hour and so on for each subsequent mile traveled. How long will it take to complete the 75 mile journey?
Penny Nom lui répond.
Biking and jogging 2016-03-17
alondra pose la question :
Ricky went on a bike ride. After 6 miles he got a flat tire and had to jog home. He jogs 3mph slower than he bikes, so the jog took 1 hour longer than the bike ride. At what rate did he travel each way?
Penny Nom lui répond.
The perimeter of a rectangle 2016-03-17
Linda pose la question :
Noel correctly adds the length of three sides of a rectangle and gets 88 cm her brother Ryan correctly adds the lengths of three sides of the same rectangle and gets 80cm. What is the number of cm in the perimeter of the rectangle
Penny Nom lui répond.
A word problem 2016-03-10
Sam pose la question :
Jo is 10 cm taller than Ruth. Pam is 16cm taller than Ruth .Rod is 8cm taller than Pam. How much taller than Jo is Rod?
Penny Nom lui répond.
A word problem 2016-02-27
KRK pose la question :
amrutha thinks of a number, multiplies it by 5 & 6, devides the result by 3 and takes away the number first thought of to get an answer 36. find out the number
Penny Nom lui répond.
Todd is 3 years older than his brother Jack 2016-02-13
Victoria pose la question :
Todd is 3 years older than his brother Jack. If Jack is x years old and Todd is y years old, write a rule that relates their ages over time. When Jack is 28 years old, how old will Todd be?
Penny Nom lui répond.
38 is what percent of 400? 2016-02-07
chris pose la question :
38 is what percent of 400?
Penny Nom lui répond.
When will Scott and Jill have earned the same amount? 2016-02-04
kalia pose la question :
Scott starts with $10 and earns $5 and hour. Jill starts with $40 and earns $3 and hour. when will the two have the same amount of money in the same hours?
Penny Nom lui répond.
The height of a triangle 2016-02-03
Brooklyn pose la question :
How do I figure out the height of a triangle when it only tells me the base of he triangle? And vice versa.
Penny Nom lui répond.
Which term of the series 2+7+12+...is 152? 2016-02-01
francis pose la question :
whice term of the series 2+7+12+...is 152?
Penny Nom lui répond.
Two increases of 20% 2016-01-27
Z pose la question :
How do I find how many books are in a library given a problem like this... The number of books increase after buying 20% more in May. The number increased again by 20% after they were given 300 books. How many books did it start with?.
Penny Nom lui répond.
Two increases of 20% 2016-01-27
Z pose la question :
How do I find how many books are in a library given a problem like this... The number of books increase after buying 20% more in May. The number increased again by 20% after they were given 300 books. How many books did it start with?.
Penny Nom lui répond.
A Max/Min problem with an unknown constant 2016-01-17
Guido pose la question :
Question:

The deflection D of a particular beam of length L is

D = 2x^4 - 5Lx^3 + 3L^2x^2

where x is the distance from one end of the beam. Find the value of x that yields the maximum deflection.

Penny Nom lui répond.
A rectangular enclosure 2016-01-15
Amber pose la question :
A rancher wants to use 300ft of fencing to enclose a rectangular area of 4400 square feet. What dimensions should the rectangle be?
Penny Nom lui répond.
A triangular shaped garden 2016-01-13
Demetrie pose la question :
Dwayne's garden is triangle-shaped with two equal sides and a third side that is 4 ft more than the length of an equal side. If the perimeter is 49 ft, how long is the longest side?
Penny Nom lui répond.
Sue's favourite number 2016-01-12
Maria pose la question :
This is my son's homework. He is 7. Can you help?

Sue has a favourite number.
It is an even number.
It has 3 digits.
The digits add up to 15.

Find 10 numbers that could be Sue's number?

favourite number lui répond.
Three consecutive integers 2016-01-07
ronn pose la question :
Three consecutive integers whose sum is 186
Penny Nom lui répond.
Two transport companies 2016-01-06
Brynleigh pose la question :
The Sugar Sweet Company will choose from two companies to transport its sugar to market. The first company charges $5096 to rent trucks plus an additional fee of $200.75 for each ton of sugar. The second company charges $5500 to rent trucks plus an additional fee of $175.50 for each ton of sugar. For what amount of sugar do the two companies charge the same? What is the cost when the two companies charge the same?
Penny Nom lui répond.
A ratio word problem 2016-01-06
Nina pose la question :
The length and the width of the rectangle is in the ration 5:3. Its area is 375m2. Find its perimeter.
Penny Nom lui répond.
A troublesome word problem 2015-12-28
Linda pose la question :
James is now 3/5 John's age. Three years ago, he was 1/2 John's age. Three years from now, he will be 2/3 John's age.
How old are they now?

Penny Nom lui répond.
A bus trip 2015-12-15
Michelle pose la question :
I do not know what equation(s) should be used in order to obtain the answer(s) to this word problem.

A bus was rented for a trip, the cost was dived equally amongst the passengers. During the trip, someone mentioned that if there were 9 more passengers, they would have paid each 5$ less. Another mentioned that if there were 6 less passengers, they would have each paid 5$ more. What is the cost of renting the bus and how much must each passenger pay.

Penny Nom lui répond.
A word problem with percentages 2015-12-05
Caedryn pose la question :
After giving 25% of her stickers away, May had 50% as many stickers as Rose. If they had 200 stickers altogether at first, how many stickers did Rose have?
Penny Nom lui répond.
The dimensions of a rectangle 2015-09-25
Erick pose la question :
A rectangular strip of land has a perimeter of 124meters and an area of 385 square meters. Find its possible dimensions
Penny Nom lui répond.
32 golfers playing 6 rounds 2015-09-19
scott pose la question :
i am looking for a schedule for 32 golfers to play 6 rounds and never play with the same person twice.
I made one for 28 golfers but i am struggling with 32.

Victoria West lui répond.
A word problem 2015-09-17
Suszanne pose la question :
Multiplying a number by x yields the same result as dividing the number by 0.125. What is the value of x?
Penny Nom lui répond.
The weight of a pumpkin 2015-09-01
Lisa pose la question :
A pumpkins weighs 10 pounds plus half of 10 pounds plus half it's own weight, what does the pumpkin weigh?
Penny Nom lui répond.
Working backwards 2015-08-27
Heather pose la question :
Tom took a collection of tiles from a box. Sue took 13 and Bob took half of those remaining. Tom had 11 left. How many did they start with?
Penny Nom lui répond.
Factor x^2 + y^2 2015-08-26
Jerome pose la question :
Factor: x^2+y^2
Penny Nom lui répond.
Four equations in 3 unknowns 2015-08-23
damien pose la question :
solve:
S x U - T = 44
T - U x S = 36
U + T - S = 7
U x U / S = 4

Penny Nom lui répond.
The distance between two boats 2015-07-26
mohammad pose la question :
Two boats leave the same dock at the same time,one traveling due east at 10 mph and the other due north at 24mph,how many miles apart are the boats after 3hours ?
Penny Nom lui répond.
Mary, Julie and Peter when on a trip 2015-07-10
Edward pose la question :
How do you solve and set up a problem where: Mary pays one third of the cost of a trip, Julie paid half of what Mary paid, and Peter paid the remaining $75,
Penny Nom lui répond.
A two digit number 2015-06-05
Madison pose la question :
Trini took some photos. The number of photos she took is a two digit number. The sum of the digits is 11. The tens digit is 3 more than the ones digit. How many photos did Trini take?
Penny Nom lui répond.
A calculus optimization problem 2015-05-14
Ali pose la question :
Given an elliptical piece of cardboard defined by (x^2)/4 + (y^2)/4 = 1. How much of the cardboard is wasted after the largest rectangle (that can be inscribed inside the ellipse) is cut out?
Robert Dawson lui répond.
A word problem 2015-05-08
JAMES pose la question :
A businessman bought a number of similar articles for a total of sh. 6000. Three of the articles turned out to be defective with no resale value. He sold the remaining articles at 12.5% each above the cost price making a total profit of sh 480. How many articles had he bought?
Penny Nom lui répond.
A word problem with fractions 2015-04-23
Cecilia pose la question :
if one third of a pole is red, one quarter is white and 15m is black what is the height of the entire pole
Penny Nom lui répond.
How many boats total are in the marina? 2015-04-15
Carla pose la question :
In a marina, 3/4 of the boats are white, of the remainder 4/7 are blue, the rest are red. There are 9 red boats. How many boats total are in the marina? My answer is 84 because if 1/4 of the boats are divided into sevenths, that makes the whole marina a 28 part item. 3/28 are red so 84 is the total number of boats. My child thinks I am wrong.
Penny Nom lui répond.
A word problem with fractions 2015-04-09
Lorraine pose la question :
If the numerator of a certain fraction is doubled and the denominator is increased by 1, the fraction becomes 1/2.

If the numerator of the original faction is squared and the denominator is decreased by 2, the fraction becomes equal to 1.

Let x be the numerator and let y be the denominator of the original fraction. Write down two simultaneous equation in x and y.

Solve these equations to find two possible values for the given fraction.

Penny Nom lui répond.
Dealing cards to Melissa and Robert 2015-03-24
Karena pose la question :
92 cards in all. Melissa has 3 times as many cards as Robert. How many cards does Robert have?
Penny Nom lui répond.
The weight of two dogs 2015-03-17
Renee pose la question :
Darlene's dog weighed 5 times as much as Leah's dog. Together, the dogs weighed 84 pounds. How much did each dog weigh? Write an equation and solve
Penny Nom lui répond.
Olivia and Ray walk to school 2015-03-12
Rebeccah pose la question :
Olivia and Ray walk to school. Olivia walks 1/4 of a mile to school. Her walk is 2/3 of the distance that walks Ray to school. What is the total distance,in miles,that Ray walks to school?
Penny Nom lui répond.
Two sunflowers 2015-03-12
Maurice pose la question :
Sam and sally planted two sunflowers.Each sunflower grows 1cm each day. Sally's sunflower is 4cm high. Sam's is 12cm high. How high will each sunflower be when Sam's sunflower is twice the height of Sally's?
Penny Nom lui répond.
An isosceles triangle and an arc 2015-02-18
Sreeharsha pose la question :
The diagram shows an isosceles triangle ABC in which BC = AC = 20 cm, and angle BAC = 0.7 radians. DC is an arc of a circle, centre A. Find, correct to 1 decimal place,
(i) the area of the shaded region, [4]
(ii) the perimeter of the shaded region. [4]

Penny Nom lui répond.
A 330 foot long fence 2015-02-15
Marsha pose la question :
I am putting up a fence 330 feet long and want to put the t post every 4 feet how many t post do i need?
Penny Nom lui répond.
A word problem with fractions 2015-02-11
Omokayode pose la question :
A vehicle tank was 3/5 full of petrol. When 21 litres of fuel was added it was 5/6 full. How many litres of petrol can the tank hold?
Penny Nom lui répond.
A fence post problem 2015-02-08
Nicole pose la question :
In Susan's rectangular garden plot, she put 12 posts on the long sides and 8 posts on the short sides. How many posts did she use altogether? (The answer is not 40.)
Penny Nom lui répond.
The product of a 2-digit number and a 3-digit number 2015-02-06
Nathaniel pose la question :
The product of a 2-digit number and a 3-digit number is about 50 000 what are the products
Penny Nom lui répond.
Jack and Jill climb two poles 2015-02-02
APRIL pose la question :
Two vertical poles are 3 meters apart. Jack is climbing one pole while Jill climbs the other. If the distance between Jack and Jill is 5 meters, how much higher is Jill than John?
Penny Nom lui répond.
Russell is 6 years older than Samantha 2015-01-26
Kelli pose la question :
Russell is 6 years older than Samantha. In 4 years the sum of their ages will be 78. How old is Russell now?
Penny Nom lui répond.
A road around a garden 2015-01-25
hahha pose la question :
a garden 150 m long and 80 m wide has a road 4 m wide all around on the out side find the cost of paving at the rate of 12 per s.q m
Penny Nom lui répond.
Largest cone in a sphere 2015-01-15
Alfredo pose la question :
What is the altitude of the largest circular cone that may be cut out from a sphere of radius 6 cm?
Penny Nom lui répond.
A trip to Ottawa from Toronto 2014-12-22
Kristy pose la question :
A trip to Ottawa from Toronto will take 4 1/2 hours. Assuming we are 2/3 the way there, how much longer will the trip take?
Penny Nom lui répond.
A right triangle 2014-12-13
Katie pose la question :
the shorter leg of a right triangle measures 2 feet less than the longer leg. the hypotenuse measure 10 feet. find all three sides
Penny Nom lui répond.
What is 20 and 3/5 of 10? 2014-11-26
Jeannine pose la question :
What is 20 and 3/5 of 10? Question is written exactly this way. Is this 20 3/5 times 10 (103/5 times 10), or is it 20 and (3/5 times 10)?
Penny Nom lui répond.
Mark's book case 2014-11-24
anne pose la question :
mark has 312 books in his case. he has 11 times as many fiction books as non fiction books. how many fiction books does mark have?
Penny Nom lui répond.
An age related word problem 2014-11-18
Cole pose la question :
Susan and Russell are brother and sister. Susan says that in two years she will be twice Russell's current age. Russell says that he's only three years younger than Susan. How old is each of the siblings?
Penny Nom lui répond.
Jason's speed 2014-10-31
jason pose la question :
the speed of Jason is 12 times faster than everyone. The speed of Jason is 108mph. Write the equation and solve to find the speed of everyone else.
Penny Nom lui répond.
What is the speed of the boat in still water? 2014-10-30
Adam pose la question :
The current in a stream moves at a speed of 2 km/h. A boat travels 38 km upstream and 38 km downstream in a total time of 3 hr. What is the speed of the boat in still water?
Penny Nom lui répond.
A 10-foot piece of PVC pipe 2014-10-21
David pose la question :
A plumber has a 10-foot piece of PVC pipe. How many 9/5-foot pieces can be cut from the 10-foot piece ?
Penny Nom lui répond.
Three consecutive odd integers 2014-10-17
Maddy pose la question :
3 times the largest of three consecutive odd integers is 13 more than the sum of the other two. What are the integers?
Penny Nom lui répond.
A poorly worded question 2014-10-14
Marjorie pose la question :
How do I figure out the following? Dylan's dog weights 12 times more than his pet rabbit. The dog and the rabbit weight 104 pounds. How much does Dylan's dog weigh? Would you explain in detail how I would arrive at the answer so I can convey same to my grandson who is in the 5th grade. Thanks.
Penny Nom lui répond.
A quarter mile row of trees 2014-10-09
junna pose la question :
a farmer would like to plant trees on one side of his lot which is 1/4 of a mile in a length His friend advised him that if he would plant the trees 5 feet farther apart,he would need 44 fewer trees.If the farmer would take the advice, how many trees would he plant?
Penny Nom lui répond.
A rectangle and a triangle 2014-09-27
rajesh pose la question :
The perimeter of a rectangle is equal to the perimeter of a right-angled triangle of height 12 cm if the base of the triangle is equal to the breadth of the rectangle, what is the length of the rectangle?
Penny Nom lui répond.
A wire is bent to form a right triangle 2014-09-25
Lorena pose la question :
A wire 24 dm is bent to form a right triangle. The ratio of the shorter leg to the hypotenuse is 3:5. Find the length of the longer leg?
Penny Nom lui répond.
How much did each dog weigh? 2014-09-16
Fred pose la question :
LJ owned two dogs that weighed a total of 140 pounds. If one dog weighed 10 pounds more than the other, how much did each dog weigh
Penny Nom lui répond.
The average of 9 numbers is 45 2014-09-12
rizza pose la question :
The average of 9 numbers is 45. If 90 and 88 are added to the set of numbers. What will be the resulting average?
Penny Nom lui répond.
The average age of a group of 10 students 2014-09-11
sujan pose la question :
The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group . What is the average age of the two new students who joined the group?
Robert Dawson and Penny Nom lui répond.
The perimeter and diagonal of a rectangle 2014-09-10
niniha pose la question :
the perimeter of a rectangle is 68cm.if the diagonal is 26, find its dimensions
Penny Nom lui répond.
A second grade word problem 2014-09-09
Beth pose la question :
How do I explain to my second grader how to find the answer to the problem:
My tens digit is 8 more than my ones digit. My ones digit can not be zero.

Penny Nom lui répond.
Problem solving 2014-09-08
hubert pose la question :
a car left the house and travelled at an average speed of 60 kph.how many minutes will it take for the car to reach the school which is 8 km away from the house
Penny Nom lui répond.
A secret number 2014-09-08
jai pose la question :
it is smaller than half of 100, it is more than 4 tens and less than 5 tens, the tens digit is two more than the ones digit , together the digits have a sum of 6..... What is my secret number?
Penny Nom lui répond.
The sum of two numbers is 52 2014-09-01
Blake pose la question :
The sum of two numbers is 52 and the difference is 10. What are the numbers? i used to be real good at this stuff?
Penny Nom lui répond.
Water usage in Ames 2014-08-29
Abigail pose la question :
The City of Ames water treatment plant treats 7 million gallons of water per day on average to meet water demands. Hypothetically, if water is withdrawn from a groundwater system with an area of 51.6 square miles (approximate area of Ames and surrounding area), what is the depth of water in inches that would have to be added to the groundwater system annually to replace the water that is withdrawn by the city?
Penny Nom lui répond.
Cutting a round cake so that it doesn't dry out 2014-08-26
James pose la question :
I'm wondering if there's a simple way to calculate the area between two parallel chords of a circle equidistant from its diameter, or if I have the area, to find the distance between the two chords.
Here's my "problem". You may have heard of the way of cutting a round cake so that it doesn't dry out - make two parallel cuts (chords) the length of the cake, take the middle piece, then push the two pieces together.
So I know the area of a 12" cake, and I want say, exactly an eighth of the cake. How wide do I cut the centre piece? Now to get even more difficult, the next day I want another eighth from the centre. How wide do I cut the next pieces, and so on...? Thanks, James

Harley Weston lui répond.
Distance, speed and time 2014-08-13
abdel pose la question :
Mac walked to a park from the college at 5 km/h. 10 minutes later, Steve started riding his bike at 15 km/h to the same park to meet Mac. They arrive at the same time at the park. How far is the park from the college?
Tyler Wood lui répond.
A word problem with fractions 2014-08-01
nathanielcabalan pose la question :
The denominator of a fraction is one more than the numerator. If the numerator is increased by three, the resulting fraction is one more than the original fractional. Find the original fraction.
Penny Nom lui répond.
A word problem concerning averages 2014-07-26
Bernie pose la question :
The average weight of a team of children is 50kg, Todd who weighs 56 kg then joins the team. The average weight of the new team is 51. How many children in the original team?
Penny Nom lui répond.
4/9 of a set of story books cost Rs 630. 2014-07-09
YASIN pose la question :
If 4/9 of a set of story books cost Rs 630. What will the rest of the set cost?
Penny Nom lui répond.
A word problem with fractions 2014-05-30
shadab pose la question :
A container of milk is 4/5 full. When 10l milk is poured into it, the container becomes 9/10 full. What is the capacity of the container ?
Penny Nom lui répond.
A word problem with fractions 2014-05-23
Tanzeela pose la question :
There are 1200 pupils in a school. 2/3 of them are girls. 1/4 of the boys are overweight. How many boys are overweight?
Penny Nom lui répond.
Travelling upstream and downstream 2014-05-12
Mohanad pose la question :
Howie Sorkin can travel 8 miles upstream in the same time it takes him to go 12 miles downstream. His boat goes 15 mph in still water. What is the rate of the current?
Penny Nom lui répond.
Mary's height as a percentage of Michael's height 2014-05-11
Lauren pose la question :
Mary is 1.4m tall and her brother Michael is 1.2m tall.
Express Mary's height as a percentage of her brother's.

Penny Nom lui répond.
How many boards did the carpenter start with? 2014-05-08
Yanly pose la question :
A carpenter has several boards of equal length. he cuts 3/5 of each board. After cutting the boards, the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start with?
Penny Nom lui répond.
A triangular chicken pen 2014-04-27
Cierra pose la question :
Margaret has two lengths of fence, 20 meters and 24 meters, for two sides of a triangular chicken pen. The third side will be on the north side of the barn. One fence length makes a 75° angle with the barn. How many different pens can she build if one fence is attached at the corner of the barn? What are all the possible lengths for the barn side of the pen?

Not sure what they are asking here... please show step by step what to do! Thank you so much!

Penny Nom lui répond.
What was the selling price? 2014-04-25
Con pose la question :
Apple built 40 32GB wifi iPads, gave away two in a contest, and sold the rest at two times the manufacturing price. If the company's total profit was $10,782, what is the selling price of one of these iPads?
Penny Nom lui répond.
What time was it when joe's brother passed him? 2014-04-25
Nathan pose la question :
joe left home in his bike at 10:00 am, traveling 21 km/h. At noon, his brother set out after him on his motorcycle, following the same route. if the motorcycle traveled at 63 km/h, what time was it when joe's brother passed him?
Penny Nom lui répond.
Robyn and Shaun swim 2014-04-18
kajinthan pose la question :
robyn swims four 35m lengths.shaun swims eight 15m widths. how much further does robyn swim?solve this maths
Penny Nom lui répond.
A circle is divided into three sectors 2014-04-17
atolagbe pose la question :
the area of a circle is 154cm square. it is divided into three sectors such that two of the sectors are equal in size and the third sector is three times the size of the other two put together. calculate the perimeter of the third sector. take pi=22/7?
Penny Nom lui répond.
How fast did Jessica grow? 2014-04-10
jasmine pose la question :
when she was 14 jessica was 5 feet, 4inches tall . at 18 she is now 6 feet, 2inches tall .how fast did jessica grow during this time
Robert Dawson lui répond.
Two rectangular prisms 2014-04-10
hannah pose la question :
two rectangular prisms have a combined volume of 432 cubic feet Prism A has half the volume prism b has what are the volumes of prism a and prism
Penny Nom lui répond.
3/4lbs of nails fills a container 2/3 full 2014-04-04
Tyler pose la question :
If 3/4lbs of nails fills a container 2/3 full, then how many lbs of nails will fill the container?
Penny Nom lui répond.
Shadows of a father and son 2014-04-02
esada pose la question :
the father and son cast a shadow of 11 feet and 8 feet,respectively if the son is 4'8'' in height,how tall is the father?
Penny Nom lui répond.
A word problem with fractions 2014-03-26
lois pose la question :
a man has a stack of boards, he cuts 3/5 off each board, after he cuts the boards he finds he has enough pieces left to make 4 boards the length of the original boards. how many boards did he start with.
Penny Nom lui répond.
Justin and his father went fishing 2014-03-26
Confused pose la question :
Justin and his father went fishing and together caught 12 fish. Three times the number of fish that Justin caught exceeds 12 by as much as 5 times the number that his father caught exceeds 8. How many fish did each catch?
Harley Weston lui répond.
Riding on a Ferris wheel 2014-03-21
Claire pose la question :
A Ferris wheel has a radius of 72 feet and its center is 85 feet above the ground. At the top of the Ferris wheel, Sam is in the topmost car. If the Ferris wheel makes two complete revolutions per minute, how high above the ground will Sam be after 10 seconds?
Penny Nom lui répond.
Ms. Werenich's nickels, dimes and quarters 2014-03-19
London pose la question :
Ms. Werenich has twice as many dimes as nickels and 4 more quarters than nickels. If she has $4.50, how many of each coin does she have? What would the let statements be of this problem and can you solve it?
Penny Nom lui répond.
Find two numbers with a sum of -8 and a difference of 4 2014-03-19
Elisabeth pose la question :
Find two numbers with a sum of -8 and a difference of 4. Let x be the greater number and y be the lesser number.
Penny Nom lui répond.
Three consecutive whole numbers 2014-03-13
Abhishek pose la question :
Three consecutive whole numbers are such that if they be divided by 5,3 and 4 respectively, the sum of the quotient is 40. What are the numbers?
Chris Fisher lui répond.
The ratio of boys to girls is 5:3 2014-03-10
jane pose la question :
The ratio of the number of boys to the number of girls in the concert hall is 5:3. After additional 28 boys entered the concert hall, the ratio of the number of boys to the number of girls become 3:1 How many girls are their in the concert hall?
Penny Nom lui répond.
A word problem 2014-03-09
Joanne pose la question :
Ashley weighs 5kgs more than Joyce. Their total weight is 41 kgs. What is the weight of Ashley?
Penny Nom lui répond.
A word problem 2014-02-23
Anh pose la question :
The Texas State Legislature is comprised of state senators and state representatives. The sum of the number of senators and representatives is 181. There are 119 more representatives than senators. How many senators and how many representatives make up the Texas Legislature?
Penny Nom lui répond.
A word problem with fractions 2014-02-23
alex pose la question :
In a certain fraction the number by n the denominator is greater than the number by3.If 2 is added to both the numerator and denominator ,the fraction is increased by 6/35..Find the fraction.
Penny Nom lui répond.
A fountain surrounded by a walk 2014-02-18
Maddie pose la question :
A square Water Fountain is Surrounded by a walk 2 yards wide. If the Area of the Fountain is 2/3 of the total area of the Fountain and the Walk. What are the Outside Dimensions of the Walk
Penny Nom lui répond.
Paul is making banana bread 2014-02-17
John pose la question :
Paul is making banana bread. The number of cups of bananas he uses is proportional to the number of loaves of bread. Paul uses 11 1/4 cups of bananas to make 5 loaves of bread. Which equation represents the relationship between c, the number of cups of bananas, and b, the number of loaves of bread?
A) C=4/9 b
B) C=2b
C) C= 2 1/4 b
D) C=5b

Penny Nom lui répond.
Some mixed nuts 2014-02-12
Andrew pose la question :
How many kg of mixed nuts that contain 30% peanuts must Paul add to 6kg of mixed nuts that contain 38% peanuts to make a mixture that contains 33% peanuts?
Penny Nom lui répond.
A word problem 2014-02-11
cyril pose la question :
In a rectangle,the length is 1.5 times the breadth.if the length is shortened by 3 m and the breadth is lengthened by 3 m, the rectangle will be a square. Calculate the dimensions of the rectangle.
Penny Nom lui répond.
Pizza for 24 2014-02-07
Delaney pose la question :
if 8 people eat 2/3 of a honey chicken pizza how many pizzas are need to feed 24?

How is this problem solved. Thank you!

Penny Nom lui répond.
The dimensions of a room 2014-02-01
jenna pose la question :
The length of a rectangular room is 2m more than the width. Find the dimensions if the perimeter of the room is 34m
Penny Nom lui répond.
A bizarre percentage problem 2014-01-29
matthew pose la question :
by what percent was the child's sodium level beneath the normal range? the child's sodium level was 107 where the normal is 136-145
Harley Weston lui répond.
Problem solving 2014-01-24
ngozi pose la question :
There are 4 children in the Owens family. Jamie 1 1/2 times as all as Kelly and he is 6 inches taller than Olivia. Sammy is 56 inches tall, which is 2 inches taller than Olivia. Find Jamie's height
Penny Nom lui répond.
Kate, Tess and Nina 2014-01-23
Sam pose la question :
Kate is 16 yrs. younger then Tess. Nina is 8 yrs.older then Kate. The sum of their ages is 189. How old is each?
Penny Nom lui répond.
A word problem involving fractions 2014-01-23
Pamela pose la question :
John put 1/4 of his flowers in a vase
He gave 1/2 to of the flower to his wife
He gave 1/5 of the flowers to his daughter
He has 8 flowers left
How many flowers did John start with

Penny Nom lui répond.
Reducing the area of a parking lot 2014-01-19
Robin pose la question :
The school is reducing the area of its 20yd by 50yd parking lot by removing a strip at one end of the parking lot and another strip of the same width from one side. The new area of the parking lot is 504 said yes. Find the width of the removed strip
Penny Nom lui répond.
Mixing water and wine 2014-01-19
manish pose la question :
a man mixes three part of water to one part of wine.When he consumes one part of mixture he realise that the drink is too dilute and hence adds one part of wine to the remaining quantity what is the ratio of water to wine in the new mixture.
Penny Nom lui répond.
Mark's books 2014-01-18
Jason pose la question :
Mark has 312 books in his bookcases he has 11 times as many fiction books as nonfiction books how many fiction books does mark have?

26
212
286
301

Penny Nom lui répond.
$9.50 in coins 2014-01-15
dana pose la question :
you have $9.50 in coins. it has twice as many nickels as quarters and three times as many dimes as nickels. how many of each coin do you have?
Penny Nom lui répond.
Five cubes 2014-01-15
Bob pose la question :
Rick has five cubes. When he arranges them from smallest to largest, the difference between the heights of any two neighbouring cubes is 2 cm. The largest cube is as high as a tower built from the two smallest cubes. How high is a tower built from all five cubes?
Penny Nom lui répond.
Watching a bouncing ball through a window 2014-01-15
Bob pose la question :
A ball falls from the roof, at a height of 10m. After each impact on the ground it bounces back up to 4/5 of its previous height. How many times will the ball appear in front of a rectangular window whose bottom edge is at a height of 5m, and whose top edge at a height of 6m?
Penny Nom lui répond.
Radio direction finders 2014-01-09
Nathan pose la question :
Radio direction finders set up two points A and B, which are 2.5 miles apart on an east-west line. From A, it is found that the bearing of a signal from a radio transmitter is N36.33 degress E, while from B the bearing of the same signal is N53.67 degrees W. Find the distance of the transmitter from B.
Penny Nom lui répond.
Two tuna boats 2014-01-09
amanda pose la question :
Two tuna boats start from the same port at the same time, but they head in opposite directions. The faster boat travels 10 knots per hour faster than the slower boat. At the end of 8 hours, they were 272 nautical miles had each boat traveled by the end of the 8 hour period?
Penny Nom lui répond.
4 children 2013-12-31
hope pose la question :
4 children; Peter is 7 years old & is 4 years younger than Dave. Dave is 9 years older than Paul. Paul is 11 years younger than Frances. Please list the children in order from oldest to youngest?! thank you and anxiously await your answer, Hope
Penny Nom lui répond.
A word problem 2013-12-08
Malissa pose la question :
I am attempting to help my son with his math word problem, please help thank you .

Kylie and Ethan kept scrapbooks of their grandfather's stories from world war II. Kylie has 6 more than half the number of pages Ethan has. If Kylie has 21 pages in her scrapbook, how many pages are in Ethan's scrapbook?

Penny Nom lui répond.
Problem solving with fractions 2013-12-03
Jennie pose la question :
Paul has 2/3 as many postcards as Shawn. Shawn has 3/5 as many postcards as Tim. If the 3 boys have 280 postcards, how many more postcards does Tim have than Paul?
Penny Nom lui répond.
People on a bus 2013-11-28
jeric pose la question :
3/10 of the passenger in a bus were men, 2/7 of the remainder were women and the rest were children, if there were 50 passengers in the bus, how many more children than women were there?
Penny Nom lui répond.
Problem solving 2013-11-26
Moira pose la question :
Amy has £5 more than Ben. Ben has twice as much as Chris. In total they have £20 how much do they each have
Penny Nom lui répond.
Three roommates share the rent 2013-11-23
Cortlin pose la question :
Because of different bedroom sizes, three roommates decide to split the rent this way: Roommate A pays 75% as much as B does, and C pays 40% as much as B does. What fractional part and percent of the rent does each roommate pay?
Penny Nom lui répond.
A ratio problem 2013-10-31
indu pose la question :
students of a school have been into 2 groups in the ratio 6:11, if the group has 870 students, how many students are there in all the school?
Penny Nom lui répond.
Tim is standing in a hole 2013-10-23
Marvel pose la question :
Tim is standing in a hole that is 4 feet deep. Ben asks him how much deeper is he going to dig the hole. Tim replies he will dig to the level that is 4 feet 2 inches deeper and that then the top of his head will be the same distance below ground level that it is now above. How tall is Tim?
Penny Nom lui répond.
Together, Tom and Max have 72 football cards 2013-10-21
Maureen pose la question :
Together, Tom and Max have 72 football cards. Tom has 2 more than 4 times as many cards as Max has. How many football cards does Tom Have?
Penny Nom lui répond.
Peter bought pizza and drinks 2013-10-19
sd pose la question :
Peter spent $30 on pizza and 3/4 of the remainder on drinks. He has 2/9 of the original amount left. How much had he at first?
Penny Nom lui répond.
What the dog weighs 2013-10-17
linda pose la question :
Sam has a dog and rabbit together they weigh 104 lbs the dog weighs 12 times more then the rabbit what is the dogs weight
Penny Nom lui répond.
Two bikers race on a circular track 2013-10-03
bryan pose la question :
two bikers race on a circular track. biker a can circle the track in 8 minutes, and biker b can circle the track in 6 minutes. From the start of the race, how many minutes will it be before biker b overtakes biker a.
Chris Fisher lui répond.
Problem solving 2013-10-02
naomi pose la question :
My son having trouble a math problem please help with this question a bag of cough drops contains 36 drops. the fraction of each flavor is shown in the table strawberry 5/12 honey 1/12 cherry 1/6 mint1/9 and lemon 1/4 which flavor is the greast in the bag
Penny Nom lui répond.
A pool, a school, a park and home 2013-09-24
Selena pose la question :
The distance from the park to the pool is the same distance as the distance from your house to school. The school is between the pool and your house. Prove that the distance from the park to the school is the same distance from the pool to your house.
Robert Dawson lui répond.
A sequence of operations, in order 2013-09-20
jen pose la question :
multiply 46x23
add 342
divide by 70
subtract 5
I not sure what the answer is..i need to know the answer..thanks..

Penny Nom lui répond.
A concrete walk around a pool 2013-09-18
poornima pose la question :
circular Swimming pool is surrounded by a concrete walk 4 feet wide, if the area of the walk is 11/25 of the area of the pool, then the radius of the pool in feet is
Penny Nom lui répond.
A garden path 2013-09-06
mary pose la question :
garden path has 8 white slabs, four of the slabs are one third grey, what area of the path is grey
Penny Nom lui répond.
A word problem 2013-09-05
Thomas pose la question :
I'm trying to help my 9th grade child with their homework. The problem is the Length of a rectangle is twice as long as it is wide. The perimeter is 68m. Find It's length and width
Penny Nom lui répond.
A two digit number 2013-09-04
JEFFERSON pose la question :
The sum of the digits is 6. When the digits are interchange, the new number represented is 3 time the 10 digit of the original number. Find the original number?
Penny Nom lui répond.
How many nickles do you have? 2013-09-04
Monica pose la question :
You have 15 more dimes than nickels. If you have $2.55, how many nickels do you have?
Penny Nom lui répond.
Golden Ratio 2013-08-26
Mark pose la question :
Please Help. I'm trying to help my Child and I have no clue on this math question.

Rectangular shapes with a length to width ratio of approximately 5 to 3 are pleasing to the eye. The ratio is know as the golden ratio. A designer can us the expression 1/3(5w) to find the length of such a rectangle with width 6 inches.

Robert Dawson and Penny Nom lui répond.
A mixture problem 2013-08-11
MJ pose la question :
How many liters of pure acetic acid must be mixed with 3 liters of a 30% acetic acid to obtain a mixture of 65%?
Penny Nom lui répond.
A mixture problem 2013-07-29
Lucy pose la question :
Hi, For the following question:

Ten pounds of mixed nuts contain 50 percent peanuts. How many pounds of peanuts must be added so that the final mixture has 60 percent peanuts?(A) 2.5 (B) 5 (C) 6 (D) 10 (E) 12.5,

my math book gives my the following explanation: Try choice (C): 6 pounds of peanuts. The original 10-pound mixture contained 50 percent peanuts, or 5 pounds. Now you have 11 pounds of peanuts in a 16-pound mixture, more than 60 percent. This result automatically eliminates choices (D) and (E) as well.Why would this result automatically rule out D and E? How can you tell? Thank you for taking the time to answer my question.

Robert Dawson and Penny Nom lui répond.
A word problem 2013-07-29
Gontsejalo pose la question :
Your firm held a dance competition. 900 people attended the dance competion.The cost of admission was 20rand per person and 30,50rand per couple.Twice as mant 20rand tickets as 30,50rand tickets were sold.find the amount of money obtained from the tickets sales
Penny Nom lui répond.
Ann has a bag of marbles. 2013-07-25
Carmen pose la question :
Ann has a bag of marbles. she gave one half to her friend Tina and then one third to her friend Tom. Now left with 15. How many did she had originally?
Robert Dawson and Penny Nom lui répond.
150 litres has been drawn from a tank 2013-07-14
henry pose la question :
When 150 litres has been drawn from a tank, it is 3/8 full, how many litres will the tank hold?
Penny Nom lui répond.
Diego and his dog 2013-07-09
William pose la question :
john went hunting and walked at a speed of 4 km/h. one hour later, Diego and his dog went to meet john with a speed of 6 km/h and the dog was running between john and diego until they meet up with a speed of 18 km/h. After Diego meets john, how much distance did the dog run?
Penny Nom lui répond.
Two numbers whose difference is 16 2013-06-08
Johan pose la question :
Two numbers whose difference is 16 and whose sum is 120
Penny Nom lui répond.
The percentage of fat in a container of yogurt 2013-05-17
Katy pose la question :
There is a question that I' having trouble with. It says: "A container of yogurt contains 228 g of water, 54 g of carbohydrates, 12 g of protein and 6 g of fat, what percentage of the yogurt is fat?" How do you convert 6 g into percentage?
Penny Nom lui répond.
A word problem 2013-05-03
Shaneaya pose la question :
Keikio spent the day bird watching and counted 34 more birds in the morning than in the afternoon. If she counted a total of 76 birds, how many birds did she count in the afternoon?
Penny Nom lui répond.
The dimensions of a rectangle 2013-03-19
stephanie pose la question :
the length of a rectangle is 5m more than twice its width, and the area of the rectangle is 88m^2 find the demensions of the rectangle
Penny Nom lui répond.
If 4 cooks can bake 8 pies in 6 hours????? 2013-03-18
Kenneth pose la question :
Hello:

I want to determine which quantities are directly and inversely proportional in order to determine the answer for the following:.

If 4 cooks can bake 8 pies in 6 hours, 2 cooks can bake how many pies in 4 hours?

Answer: 2 2/3 pies

Can someone fully explain what I need to know in order to determine what is directly and inversely proportional in the example above?

I thank you for your reply.

Robert Dawson lui répond.
Driving a rental car 2013-03-13
teresa pose la question :
Driving a rental car x miles cost y= 0.25x + 25 dollars.

(a) How much would it cost to rent the car but not drive it?
(b) How much does it cost to drive the car 1 additional mile?
(c) What is the y-intercept of y= 0.25x + 25? What does it represent?
(d) What is the slope of y= 0.25x + 25? What does it represent?

Penny Nom lui répond.
100 animals 2013-02-25
Jessica pose la question :
You have exactly $100.00 to spend. You must get 100 animals.
The chicks cost $0.10 each.
The pigs cost $2.00 each.
The sheep cost $5.00 each.
You must get some of each animal.
How many of each animal can you get?

Penny Nom lui répond.
A trig word problem 2013-02-18
Amy pose la question :
Susan notices an unusual rock formation at an angle of 30 degrees to the right of her direction of travel as she is white water rafting. as she continues in a relatively straight path for 20 m, the rock formation appears to be at 45 degrees to the right. she cotninues until the rock formation is directly to her right. how far is she fromt he rock formation?
Penny Nom lui répond.
Chocolate bars and puzzles 2013-02-15
sandy pose la question :
Alan bought a box of puzzle and two bar of chocolate for $28.
Jan bought 3 boxes of puzzle and a bar of chocolate similar to Alan for $69.
a) Find the cost of a box of puzzle
b) Find the cost of a bar of chocolate

Penny Nom lui répond.
A word problem involving toys 2013-02-14
sandy pose la question :
Each boy gets 5 toys.Each girl gets 3 toys.There are 150 pupils.
The boys had 74 more toys than girls.
How many boys?
How many girls?

Penny Nom lui répond.
The height of an aerial 2013-02-12
ASIT pose la question :
A vertical aerial stands on a horizontal ground. A surveyor positioned due east of the aerial measures the elevation of the Top as 48 degree. He moves due south 30metre and measure the elevation as 44 degree. determine the height of the aerial
Penny Nom lui répond.
A cubical shipping container 2013-02-12
Chantel pose la question :
The length, width and height of a cubical shipping container are all decreased by 1.0 ft, thereby decreasing the volume of the cube by 37 ft3(feet-cubed) What was the volume of the original container? (recall: volume of cube with a side length x=x3) Define the variable, write a quadratic equation and solve by factoring.
Penny Nom lui répond.
Brian is x years old 2013-02-06
Sabrina pose la question :
Brian is x years old.
Peter is 4 years older than Brian.
Amy is 2 years younger than Brian.
The total of their ages is 26 years.
Work out the value of x.

Penny Nom lui répond.
The area of a rectangle 2013-01-29
Bali pose la question :
if the length of the rectangular field is decreased by 5m, its area is decreased by 70 sqm. if the width is increased by 6m, the area is increased by 180 sqm. determine the length and width of the rectangular field?
Penny Nom lui répond.
We have 2 teams of 6 couples each that play 6 games 2013-01-25
Denise pose la question :
We put together a game night where we have 2 teams of 6 couples each that play 6 games. We haven't been able to figure out an arrangement that allows each couple to play each game with a different couple from the opposite team (i.e. Team A couples play every game with a different couple from Team B). Is this possible? It works with 2 teams of 5 couples each.
Chris Fisher lui répond.
Use 9,10,6,8, and 4 to make 10 2013-01-25
Able pose la question :
How do you calculate using BEDMAS 9,10,6,8,4 to equal 10
Penny Nom lui répond.
A geometry word problem 2013-01-24
Matthew pose la question :
"G", "A" and "B" are collinear. "A" is between "G" and "B". "GA" Is 14 less than 3 times "AB". "GB"=46 Find "GA"

How would you solve this?

Penny Nom lui répond.
How many students have neither brown hair or hazel eyes? 2013-01-20
Julie pose la question :
There are 28 students in a class. 15 have brown hair, 17 have hazel eyes, and 10 have both. How many students have neither brown hair or hazel eyes?
Penny Nom lui répond.
Maximize profit 2013-01-19
Chris pose la question :
A firm has the following total revenue and total cost function.
TR=100x-2x^2
TC=1/3x^3-5x^2+30x
Where x=output
Find the output level to minimize profit and the level of profit achieved at this output.

Penny Nom lui répond.
A balance puzzle 2013-01-14
Emily pose la question :
I'm stuck on this problem and feel that it can't work! The problem is: there is a door with a balance scale on it. In order to open the door, you have to use the 5 weights to balance the scale. On the left side you have 2 boxes to place the weights and on the right side you have 3. You're 5 weights are as follows: 1lbs, 2lbs, 3lbs, 4lbs, 5lbs. How do you place the weights so that the scale is balanced?
Penny Nom lui répond.
A triangular island 2012-12-29
Udit pose la question :
A long time ago Mr Gibson found an island shaped as a triangle with three straight shores of length 3 km,4 km and 5 km. He declared an 'exclusion zone' around his island and forbade anyone to come within 1 km of his shore. What was the area of his exclusion zone?
Penny Nom lui répond.
Increasing the size of a gift box 2012-12-27
Tehmas pose la question :
The dimensions of a gift box are consective positive integers such that the height is the lowest integer and the length is the greatest integer. If the height is increased by 1cm, the width increased by 2 cm, and the length increased by 3 cm, then a larger box is constructed and the volume is increased by 456 cm^3. Determine the dimensions of each box.
Harley Weston lui répond.
A parabolic bridge 2012-12-09
Elizabeth pose la question :
1) The figure below shows a bridge across a river. The arch of the bridge is a parabola and the six vertical cables that help support the road are equally spaced at 4-m intervals. Figure B shows the parabolic arch in an x-y coordinate system, with the left-end of the arch at the origin. As indicated in Figure B, the length of the leftmost cable is 3.072 m.

I'm suppose to find the (x-h)^2=-4a(y-k) equation for this word problem and I really do not know where to begin.

Afterwards, I need to find the lengths of the other cables and the maximum height of the arch of the road as well which I am very confused about

Penny Nom lui répond.
Mark has 312 books 2012-12-07
paul pose la question :
Mark has 312 books. He has 11 times as many fiction books as non fiction books. How many fiction books does he have?
Penny Nom lui répond.
A function problem 2012-11-18
nahla pose la question :
f: IN --> IN
n --> f(n)
for every n that belongs the IN : fof(x) = 4n - 3
and for every n that belongs to IN f(2^n) = 2^(n+1) -1

Calculate f(993)

Penny Nom lui répond.
A path around a pond 2012-11-16
bailey pose la question :
hi there,
A circular pond is surrounded by a path 1 metre wide. The area of the path is 1/4 of the area of the pond.
Find the radius of the pond.

Thanks

Penny Nom lui répond.
How much should I price the earrings? 2012-11-13
Sharon pose la question :
I want to sell some earrings and make a $12.00 profit on them I have to pay a 35% commission on them. How much should I price the earrings?
Penny Nom lui répond.
What's your secret? 2012-11-11
ryan pose la question :
Tuscan school has a fair. At the fair, Pia plays "what's your secret? The game starts with 3 players who are told the same secret. Each of those 3 players tells another 3 player, and so on. At the end of the 3rd round, everyone who knows the secret will compare what they have heard. What number in exponent form represents the number of people who know the secret after 3 rounds? How many people is that?

Thank you very much.

P.S. I got 3 cube. which is 27

But when i map it out I end up with 39.

Penny Nom lui répond.
Joe and Chris each bought a six pack of cola 2012-11-01
Loulou pose la question :
Joe and Chris each bought a six pack of cola. Joe gave 2/3 of his away and Chris gave half as many as Joe. how many more colas did Chris have than Joe
Penny Nom lui répond.
Filling a box with wood chips 2012-10-31
lee-Anne pose la question :
Each bag of wood chippings will fill 4m3 how bags would be needed?
Volume of box is 572 cm3
L=11CM
W= 6.5CM
H=8CM

Penny Nom lui répond.
Frosting a three layer cake 2012-10-30
johnathan pose la question :
Each layer of a 3 layer cake is a cylinder with height 7.5 cm. The bottom layer has diamegter 25 cm. The middle layer has dimegter 22.5 cm. The top layer has diameter 20 cm. The surface of the cke is frosted. What area of the cake is frosted. I get 1695.56 but the answer in the book is 2081.3
Penny Nom lui répond.
birdhouse in the shape of a rectangular prism 2012-10-29
Tiffany pose la question :
Hello, I am Tiff M. from NYC.
I was solving a math problem about adding,subtracting,multiplying or dividing fractions and mixed numbers. I am not getting this question below.
* Laura is building a birdhouse in the shape of a rectangular prism. The base of the birdhouse has an area of 5 square inches. The height of the birdhouse is 2 7/12 inches. Laura calculated the volume of the bird house to be 10 7/12in. Is she correct?
If not, what did she do wrong?

Robert Dawson lui répond.
Forming an algebraic expression 2012-10-27
ashley pose la question :
A sidewalk has a constant width W and comprises several short sections having lengths 12, 14,and 10 feet. How do I find the simplified expression that gives the number of square feet of sidewalk?
Penny Nom lui répond.
Whites and Sulphurs butterflies 2012-10-19
Arlene pose la question :
The Whites and Sulphurs are one major family of butterflies. There are about 720 varieties. Eleven times more Whites and Sulphurs live outside North America, mostly tropical Asia and Africa, than live inside North America. How many of this family of butterflies live in North America? How many live in the rest of the world?
Penny Nom lui répond.
Walking home from school 2012-10-15
margie pose la question :
My sister can walk from school to home in 40 minutes. I can walk from school to home in 30 minutes. Today I stayed for some extra help, and my sister was already 2/5 of the way home when I started. If I walk at my usual speed, can I catch my sister before she gets home? If yes exactly what fraction of the trip have we covered when I catch her? If no exactly what fraction of the trip have I covered when my sister gets home?
Penny Nom lui répond.
A four digit number 2012-10-09
cyndi pose la question :
find this 4 digit number: the tens digit is 1/3 of the hundreds digit; the 2 digit number formed by the tens and ones digits i the largest prime number smaller than 40; the sum of all 4 digits is the same as the number of face on an icosahedron ? what is the number?
Penny Nom lui répond.
A problem that yields a linear equation 2012-10-07
Eshraj pose la question :
one fourth of a whole number is three more than one fifth of the next whole number.find the whole number
Penny Nom lui répond.
How many oranges? 2012-10-06
Rodger pose la question :

Question from Rodger, a teacher:

How Many Oranges?
Marjorie, Colleen, and Bob picked oranges together. They were tired after picking a large number of oranges and so fell asleep. Marjorie woke first and decided to take her third of the oranges and head home. She counted the oranges, and found that the number was divisible by 3 if she took one of the oranges first. Marjorie took one orange and then took one-third of the remaining oranges. She left quietly.
Bob awoke a short time later, noticed that Colleen was sleeping, and presumed Marjorie had gone for a walk. He decided to head home because he wasn't feeling well. Not realizing that anyone had left, he counted the oranges and found that the number of oranges was two more than a number that could be easily divided by 3. So he took the two extra oranges and then one-third of what was left. He left without waking Colleen and without waiting for Marjorie to return.
Colleen finally awoke and wondered where her friends had gone. She assumed they were both busy somewhere nearby. Before she left, she counted the oranges and was surprised at how small the number was. She found that the number of oranges was one more than a multiple of three, so she took the extra orange and one third of those remaining.

1. What was the total number of oranges the friends picked?
2. How many oranges were left behind when Colleen departed?
3. Is more than one answer possible for the total number of oranges? If so, what other numbers are possible? Explain.
4. Based on the values you found in problem 3, determine a reasonable solution to the problem. Explain your answer.
5. Is it possible that five oranges remained after Colleen took her share? Explain.
6. Could there have been six oranges left after Colleen departed? What about 46 oranges initially? Explain
7. Find a pattern that gives all the possible numbers of oranges that the friends picked. Explain your pattern

5. Is it possible that five oranges remained after Colleen took her “share”? Explain. 6. Could there have been six oranges left after Colleen departed? What about 46 oranges initially? Explain 7. Find a pattern that gives all the possible numbers of oranges that the friends picked. Explain your pattern

Penny Nom lui répond.
The dimensions of a rectangle 2012-09-12
Becky pose la question :
A rectangle has an area of 48 square inches and perimeter of 32 inches. Find the dimensions of the rectangle.
Penny Nom lui répond.
A 2-digit number 2012-08-23
patty pose la question :
Write the 2-digit number that matches the clues. My number has a tens digit that is 8 more than the ones digit. Zero is not one of my digits. My number is
Penny Nom lui répond.
Kirkman schoolgirl problem 2012-08-18
Anthony pose la question :
need to have the number from 1-15 in 6 rounds of 3 numbers without the numbers be repeating in the same row . eg round 1
1 2 3
4 5 6
7 8 9
10 11 12
13 14 15

2nd round
1 4 7
10 13 2
5 8 11
14 3 6
9 12 15
Chris Fisher lui répond.

Problem solving 2012-08-15
Sugavanas pose la question :
If length of a rectangle exceeds its width by 5 m. if the width is increased by 1m and the length is decreased by 2 m, the area of the new rectangle is4 sq m less than the area of the original rectangle. Find the dimensions of the original rectangle.
Penny Nom lui répond.
A 4 digit number 2012-08-09
May pose la question :
The number is given as ABCD. The first digit is a quarter of the last digit. The second digit is one less than the first digit. When the number ABCD is multiplied by four its digits appear in the reverse order. None of the digits are the same. What is the number. Pleas help because my child need help and I can not do this. Thank you.
Penny Nom lui répond.
The difference between two numbers is 7. 2012-08-09
May pose la question :
The difference between two numbers is 7. When the two numbers are multiplied the answer is 60. How do I work out the two numbers,I tried solving for one unknown and substitution and can not do it. Pleas show me how to do this.
Penny Nom lui répond.
A garden in the back yard 2012-08-04
Lucy pose la question :
Your boss says that his wife has put an 18 × 51 foot garden in along the whole back end of their back yard. He says that this has reduced the back-yard lawn area by 24%. What are the total dimensions of his back yard? What are the dimensions of the remaining lawn area? I found this question on purplemath(http://www.purplemath.com/modules/percntof3.htm). I still don't understand how to solve it. Can you walk me through the process please? Thank you in advance for taking the time to answer my question.
Penny Nom lui répond.
John's electronic store 2012-07-25
Jora pose la question :
Electronic Store John opened an electronic store in December. During his first month, He sold 10 LCD TVs and 20 Plasma TVs. His income during that month was $12800. In January, he sold 25 LCD TVs and 40 Plasma TVs for an income of $27600. In February he projects to sell 30 LCD TVs and 50 Plasma TVs. If John expenses are $28900 in February, how much money will he have after paying the expenses?
Penny Nom lui répond.
Romeo and Juliet live 40 miles apart 2012-05-18
Abigaíl pose la question :
Romeo and Juliet live 40 miles apart. Romeo jogs 8mph, while Juliet “fast walks” at 4mph. They leave their houses at the same time and journey toward each other.
a) How many hours after they start will they meet?
b) Approximately how many miles from Romeo’s house is their meeting point?

Penny Nom lui répond.
Math, time and rate 2012-05-18
Abigaíl pose la question :
Romeo and Juliet live 40 miles apart. Romeo jogs 8mph, while Juliet “fast walks” at 4mph. They leave their houses at the same time and journey toward each other.
a) How many hours after they start will they meet?
b) Approximately how many miles from Romeo’s house is their meeting point?

Penny Nom lui répond.
Cycling and running 2012-05-07
liz pose la question :
a biathlete travels 20 miles in 2.25 hours. She cycles part of the way at 12 mph and runs the rest at 5 mph. How far did she run?
Penny Nom lui répond.
A puzzle with a triangle and 57 2012-04-25
sharon pose la question :

Question from sharon, a parent:

We have been battling with this for days and cant find any solution -

Using each of the following numbers once, fill all the spaces in the triangles so that each side of the triangle adds up to 57

numbers are 11,12,13,14,15,16,17,18,19

diagram is -

      0      
    0   0    
  0   57   0  
0   0   0   0

 

Any ideas ? this has to be in in just over 24 hrs ......help!


Chris Fisher lui répond.
Gray siding and stone chimneys 2012-04-22
lupita pose la question :
Fifty houses are on the north side of a river. The 2nd house has gray siding, and every 5th house after that also has gray siding. The 11th house has a stone chimney; every 3rd house after that also has a stone chimney. How many of the 50 houses have stone chimneys but do not have gray siding?
Penny Nom lui répond.
What was the class average? 2012-04-20
olwale pose la question :
a class which consist of 15 boys and 10 girls sit for a test. the average score of the boys is 20 and the girls' is 25. find the average score of the class.
Penny Nom lui répond.
5 machine make 5 gadgets in 5 minutes 2012-04-20
Charles pose la question :
5 machine make 5 gadgets in 5 minutes,
so how long does it take for 100 machines make 100 gadgets?

Penny Nom lui répond.
A maximization problem 2012-04-09
Nancy pose la question :
After an injection, the concentration of drug in a muscle varies according to a function of time, f(t). Suppose that t is measured in hours and f(t)=e^-0.02t - e^-0.42t. Determine the time when the maximum concentration of drug occurs.
Penny Nom lui répond.
Water is flowing from tank A to tank B 2012-04-06
Noel pose la question :
At First, Tank A was completely filled with water. The tap from Tank A was then turned on and water flowed out at a constant rate. The water which flowed out was collected into Tank B. At the end of 6 minutes, Tank A was 2/3 full. After a further 8 minutes, Tank A had 2.4 liters of water left while Tank B was completely filled with water. Find the capacity of Tank B.
Penny Nom lui répond.
A 12 foot long board 2012-04-05
Lesley pose la question :
If I have a board 12 feet long and am building shelves 2 1/4 feet in length, how many inches are left?
Jaymi Peterson and Penny Nom lui répond.
A steamroller with a 3 foot diameter and a 6 foot width makes 20 revolutions 2012-03-21
Robert pose la question :
A steamroller with a 3 foot diameter and a 6 foot width makes 20 revolutions. How much ground area does it pave?
Penny Nom lui répond.
Remainders 2012-03-18
Leslie pose la question :
Question: Janice has some marbles. When she divides them into groups of 4, she has 2 marbles left over. If she divides them into groups of 5, she will also have 2 left over. What is the least number of marbles she can have?
Penny Nom lui répond.
Buying school supplies 2012-03-09
Jada pose la question :
Hi, my daughter is having difficulties with a problem she is in the 5th grade, and insisted that it was a guess and check problem, but she really doesn't understand, and I don't either. Can you help us out?

Danielle is buying school supplies. She has $7.25 to spend.
Notebook: $0.75
Pencils: $1.95
Pens: $2.50
Planner: $5.00
Please help by explaining the guess and check strategy for a problem like this. Thank you.

Penny Nom lui répond.
A clock takes 3 seconds to strick the hour of 3 o'clock 2012-03-09
saptarshi pose la question :
[ A clock takes 3 seconds to strick the hour of 3 o'clock. How many seconds will it take to strick 9 o'clock?]
Robert Dawson lui répond.
Tina is older than Catherine by 1 year and 7 months 2012-03-03
jennifer pose la question :
Tina is older than Catherine by 1 year and 7 months. Karen is younger than Tina by 2 years and 11 months. If Karen is 7 years and 2 months old, find out Catherine's age.
Penny Nom lui répond.
Mr. Schneider's mass 2012-02-29
Khiya pose la question :
Mr. Schneider's mass is 2 digits. The first digit is 3 times the second digit. Both digits are odd numbers, and his mass is greater than 35 kg. What is Mr. Schneider's mass?
Penny Nom lui répond.
The 10000th day of her life 2012-02-21
derrick pose la question :
Ella was born early in the morning on a Friday.She got married on the 10000th day of her life. What day of the week was it?
Penny Nom lui répond.
Tim sells 6 times as many oranges as apples 2012-02-20
Bronwen pose la question :
Tim sells 6 times as many oranges as apples. If he sell 490 in total one morning, how many of each type were sold?
Penny Nom lui répond.
Demarkus is paving a new driveway 2012-02-19
Anita pose la question :
Demarkus is paving a new driveway for a local YMCA volunteer club. The driveway is 90 yards long and 6 yards wide. If the concrete cost $2.50 per square foot, how much will it cost Demarkus to cover the driveway?
Penny Nom lui répond.
Margie threw a ball 2012-02-16
mary pose la question :
at 9:45 Margie threw a ball upwards while standing on a platform 35ft above the ground. The height after t seconds follows the equation: h(t)= -0.6t^2 +72t+35
a) what will be the maximum height of the ball?
b)how long will it take the ball reach its maximum height??

Harley Weston lui répond.
Figures with dots 2012-02-15
A pose la question :
Okay so my daughter came home and had this question for homework from her teacher. I have no idea what it means HELP!!
The question shows a figure that is a square. It has 5 dots on the top, bottom and on the sides looks similar to this:
. . . . .
.       .
.       .
.       .
. . . . .
they want to know 3 more ways to show the number of dots in the figure. They have already shown one with just counting them and the other one that they showed was circling the four corner dots and then taking the dots in between with a number sentence set up like this: 4+4*(5-2) = 4+4*3= 16. They also besides giving 3 ways want us to write a number sentence and an algebraic sentence to show the number of dots in the figure with "n" sides. Please help! So confusing ! I don't know if my square turned out or not but it should be 5 across the top and bottom and on the sides and no dots in teh middle it is just the outside.

Penny Nom lui répond.
A word problem 2012-02-15
Bo pose la question :
Jane guessed a number. Tom guessed a number that was double the sum of 1 more than twice the number guessed by Jane. Sum of the numbers guessed by both were 27, what are the numbers?
Penny Nom lui répond.
A 3 to 1 ratio of girls to boys 2012-02-12
amanda pose la question :
At a recent school dance it was observed that there was a 3 to 1 ratio of girls to boys. If 204 students attended the dance, how many boys, and how many girls were there?
Penny Nom lui répond.
A two digit number 2012-01-29
Christine pose la question :
Five times the sum of the digits of a two digit number equals the number. If the digits are reversed, it becomes nine more than the original number. What is the original number? I really don't understand this question, help me please
Penny Nom lui répond.
Today is Emma's Birthday. 2012-01-25
Mike pose la question :
Today is Emma's Birthday.
Emma's mother is four times as old as Emma is today.
In four years, Emma's mother will be three times as old as Emma.
How old is Emma today?

Penny Nom lui répond.
Four pizzas 2012-01-23
kris pose la question :
a pizza company wishes to put 4 medium pizzas in a box to sell as a party pack. The box they want to use the square and has dimensions of 60cm by 60cm. They need you to help them calculate the dimensions of the pizza that will fit in the box. Calculate the following: area, radius, diameter, circumference
Penny Nom lui répond.
A problem in logic 2012-01-19
Ghader pose la question :
The puzzle below I know the answer to; because someone told me! My question is: how could I answer it using logic, maths, etc. what field of inquiry does this kind of problem fall into? Puzzle: You are in a room with two men: one is a compulsive liar and the other is a compulsive honest. There are two doors: one leading to heaven, the other to hell. The two men know which door leads to where. You want to go to heaven but are allowed only ONE question from one or the other of the two men. What would that question be? [The question to ask, from either man, is: "if I asked the OTHER man which door leads to heaven, which door would he point?". You would then choose the other door.] Has this answer got any basis in logic or maths at all?
Robert Dawson lui répond.
Four apples and two oranges cost Rs. 30... 2012-01-13
nasr pose la question :
Four apples and two oranges cost Rs. 30, and one apple and 3 oranges costs Rs.15.How much does each apple and each oranges cost?
Harley Weston lui répond.
A picture in a frame 2012-01-10
nnadozie pose la question :
a picture, which measures 46cm by 38cm, is surrounded by a frame, which is 2cm wide, find the area of the frame.
Penny Nom lui répond.
Designing aluminum cans 2012-01-08
swathi pose la question :
A company manufactures aluminum cans. one customer places an order for cans that must be 15 cm high, with a volume of 1200cm cube.

a) use the formula V= pie r squared h to determine the radius that the company should use to manufacture these cans

b) graph the function that corresponds to 0 = pie r squared h minus V to determine the radius.

Penny Nom lui répond.
A wire spiral 2012-01-07
Pinar pose la question :
I am trying to help my daughter with very challenging maths questions which sometimes I get stuck If someone help me with one of them I would appreciate it.

Jane is making a spiral out of wire. She bends the wire after 1 cm, then bends the wire after 2cm, then 3cm and continues in this manner. After 4 bends she used 15 cm of wire For each bend how many cm wire was used? After 6 bends how many cm wire will she have used? How many bends will she have made if she uses 66 cm of wire?

I would appreciate if somebody would help me with this.

Thank you!
Pinar

Penny Nom lui répond.
Two trains passing each other 2011-12-07
Tamkeen pose la question :
two trains 245m and 315m long are travelling toward each other at 90km/h and 54km/h respectively on parallel lines . how long do the train take to pass one another train the time they meet each other?
Penny Nom lui répond.
Squares and triangles 2011-12-06
Liaqath pose la question :
You have squares and triangles.
Altogether there are 33 sides.
How many squares do you have?
How many triangles do you have?

Penny Nom lui répond.
What is the altitude of the balloon? 2011-12-04
C pose la question :
Chelcy and Jorgeare 2.32 miles apart. The observe a hot air balloon directly overhead between them Chelcy's angle of elevation is 28 degrees. Jorge's Angle of elevation is 37 degrees. What is the altitude of the balloon?
Penny Nom lui répond.
A suspension bridge 2011-11-30
jennifer pose la question :
suspension bridges like the golden gate bridge, are used to span large distances. when the main curved cables are attached to the deck by vertical cables they will end up in the shape of parabola. assume that we need to build a bridge that spans 2,400 feet. the two towers 165feet tall each where placed at 400feet from either side. the lowest point of the center of the bridge at 10feet. vertical suspension cables where placed at 25foot interval. how many feet of cable are needed to connect the deck to the main cables between the two towers? show all working.
Penny Nom lui répond.
Four carpenters can build eight houses in 10 days. 2011-11-23
Kenneth pose la question :
Four carpenters can build eight houses in 10 days. Two carpenters can build how many houses in 15 days?
Penny Nom lui répond.
The dimensions of a rectangle 2011-11-11
Ivan pose la question :
The length of a rectangle is 31 centimeters less than five times its width. Its area is 72 sq centimeters. Find the dimensions of the rectangle.
Penny Nom lui répond.
3 fish 2011-10-27
Ann pose la question :
You have 3 fish weighing a total of 21 lbs. The largest fish weighs twice as much as the second fish and the third fish weighs half the amount of the second fish. So how much does the third fish weigh?
Penny Nom lui répond.
The end of a swimming pool 2011-10-17
Jim pose la question :
"The end of a swimming pool is a rectangle inclined 45° to the horizontal. The edge at the surface is 12 feet long and the submerged edge is 10 feet long.

Could you draw a diagram for me ? I don't understand the Problem.

Penny Nom lui répond.
One central circle and three tangent circles 2011-10-16
Margaret pose la question :
You have one central circle and three or more circles tangent to the outside of the circle of varying radii. You know the x,y coordinates of the centers of the other circles. If you now remove that central circle (and pretend you never knew where it was), can you calculate its center in x,y coordinates?
Chris Fisher lui répond.
Expanding the size of a table 2011-10-16
Ericka pose la question :
You are working as a carpenter in an industrial Shop. A customer came to you and inquired about the size of the table which would be fitted in her room. She informed you that she had already a 1.5 x 1m table in her room but she wanted to maximize the space by adding the same amount to is length and width. She is planning to occupy a 3 square meter place on her room for her to work comfortably. She is requesting you a written recommendation before she asked to make a table. What amount should be added to both sides to maximize a 3 square meter area?
Penny Nom lui répond.
Twice an even number 2011-10-10
Ron pose la question :
The number of dollars that Tracy has in her pocket is an odd number. Hal gave Tracy $2 more than she already had in her pocket. The number of dollars Tracy now has cannot be _________.
a) $60 b) $62 c) $64 d) 68

Penny Nom lui répond.
What is the speed of the boat in still water? 2011-10-07
Hannah pose la question :
The speed of a stream is 3 mph. A boat travels 10 miles upstream in the same time it takes to travel 16 miles downstream. What is the speed of the boat in still water
Penny Nom lui répond.
Three consecutive odd integers 2011-10-07
Muneera pose la question :
Find 3 consecutive odd integers so that 3 times their sum is 5 more than 8 times the middle one?
Penny Nom lui répond.
Linear equations 2011-10-06
Hannah pose la question :
I am confused about a question on my homework, here is an example on what I need to do:

You own a sightseeing boat tour. Kids' admission costs $5, adults' admission costs $8. During that day you get (made-up number) $521 with 71 admissions. How many of each passenger boarded?

I tried something like
5x + 8y = 521
x + y = 71

But, I still don't understand how to solve it! Help?

Penny Nom lui répond.
Three men sharing a task 2011-09-27
Olaniyan pose la question :
Three men do a piece of work, the first does 7/15, the second does 5/6 of the remainder while the third does the rest.if the rest done by the third person equals 24 units, find the whole piece of work?
Penny Nom lui répond.
90 cm of pipe 2011-09-26
margie pose la question :
A 90cm pipe is cut into two pieces so that one pieces is 6cm shorter than the other. how long was each piece?
Penny Nom lui répond.
A tank is 3/8 full 2011-09-24
Olaniyan pose la question :
When 150 liters has been drawn from a tank, it is 3/8 full; how many liters will the tank hold?
Penny Nom lui répond.
5 crayons 2011-09-17
John pose la question :
How many four color combinations are possible with 5 crayons
Penny Nom lui répond.
A rectangle of largest possible area 2011-09-16
mary pose la question :
Steven has 100 feet of fencing and wants to build a fence in a shape of a rectangle to enclose the largest possible area what should be the dimensions of the rectangle
Penny Nom lui répond.
A rectangular wall 2011-09-12
Jimi pose la question :
The area of a rectangular wall of a barn is 110 square feet. It's length is 12 feet longer than twice its width. Find the length and width of the wall of the barn.
Penny Nom lui répond.
The cost of petrol 2011-08-26
Sam pose la question :
Hi, i'm confused about this question from my textbook, here goes: The cost of petrol for a 240 km journey for a car which runs 12 km on each litre of petrol is $24. What would be the cost of petrol for a 500 km journey for a van which runs 11km on each litre of petrol? please answer in detail and thanks in advance :)
Penny Nom lui répond.
A picture with a frame 2011-08-19
Aniish pose la question :
A picture 8inches by 12inches is placed in a frame of uniform width. If the area of the frame equals the area of the picture find the width of the frame?
Penny Nom lui répond.
Fencing around a pool 2011-07-12
Anita pose la question :
The measurement of a swimming pool are 32 feet by 18 feet. How much fencing is needed if the fence is to be built 7 feet from each side of the pool?
Penny Nom lui répond.
concentric circles 2011-07-06
maribiie pose la question :
two circles are concentric. the tangent to the inner circle forms a chord of 12cm in the larger circle. find the area of the "ring" between the two circles?
Penny Nom lui répond.
How tall is the pole? 2011-05-27
cynthia pose la question :
20 foot rope is tied 2 feet from the top of a pole and secured 8 feet from the base of the pole....How tall is the pole?
Penny Nom lui répond.
How many meters long should the race be? 2011-05-26
Lee pose la question :
Nathan can walk at a rate of two meters per second while David can easily go three-and-a-half meters per second. David offers Nathan a 45 meter head start. How many meters long should the race be in order for Nathan to win by a nose
Penny Nom lui répond.
Problem solving with fractions 2011-05-21
emilyd pose la question :
I had a packet of sweets. I put 1/5 of the sweets into Container A, 1/3 of them in Container G, 10 sweets in container C and the rest in container D. If the number of sweets in container D is equal to 75% of the total number of sweets in container A and B, how many sweets are there altogether?
Penny Nom lui répond.
What was his salary before the raise? 2011-05-16
Annette pose la question :
Need to show all my work and round to the nearest dollar. If James received a 9% raise and is now making $102.00 per year, what was his salary before the raise?
Penny Nom lui répond.
The dimensions of a rectangle 2011-05-08
yolanda pose la question :
If the length of a rectangle is 3ft less than twice its width and the area of the rectangle is 54ft^2,what are the dimensions of the rectangle?
Penny Nom lui répond.
How many students are 25 and under? 2011-05-01
ella pose la question :
use the five steps of problem solving to answer the following question Enrollment at a local university is 8,500. There are one third as many students over the age of25. there are 25 and under. how many students are 25 and under and how many are 25 and older(p 5)
Penny Nom lui répond.
The area of a rectangle 2011-04-30
Hayley pose la question :
A rectangles width is exactly twice its length. The area of the rectangle is 450 square feet. What are the length and width of the rectangle?
Penny Nom lui répond.
Deciding where to bowl 2011-04-29
ella pose la question :
the bowling alley on wedge street charges $5.50 for shoe rentals plus $2.50 per game. lawerence bowing alley charges $4.00 shoe rentals and $3.00 per game . how many games should they bowl to make wedge street cheaper than lawerence street
Penny Nom lui répond.
Dividing the profits 2011-04-19
Tracy pose la question :
I need to know how to come up with the answers to the following problems. I need to be able to show my work. So can you help me on how to come up with the answers to questions like these. Thanks.

Three individuals form a partnership and agree to divide the profits equally. X invests $9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less does x receive compared to having the profits divided in proportion to the amounts invested by X, Y, and Z?

In printing an article of 48,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page contains 1,800 words. Using a smaller type, a page contains 2,400 words. The article is allotted 21 full pages in a magazine. How many pages must be in smaller type? ___________

thank you

Penny Nom lui répond.
Ramon has 6 puppies 2011-04-17
Mary pose la question :
Ramon has 6 puppies. Five of the 6 weigh the same and one puppy is heavier. If Ramon had a balance scale, what is the least number of times he could weigh the puppies to be sure he could determine which puppy was heavier?
Penny Nom lui répond.
Cone story problem 2011-04-16
Chelsea pose la question :
There is a cone with a story problem that states only that the radius is the same as the altitude and that the slant height of the cone is 6cm. I have no idea how to figure this problem out.
Penny Nom lui répond.
Decreasing numbers 2011-04-13
Hadi pose la question :
A number is called a "decreasing number" if each digit in the number is less than the digit to its left. For example, 87420 is a deceasing number. How many five-digit decreasing numbers are there?
Claude Tardif lui répond.
The perimeter of a rectangle 2011-04-04
aspen pose la question :
the perimeter of a rectangle is twice the sum of its length and its width. the perimeter is 40 meters and its length is 2 meters more then twice its width. what is the length?
Penny Nom lui répond.
If 25 items are evenly spread over 7 days 2011-03-23
michael pose la question :
What is the formula to calculate:
If 25 items are evenly spread over 7 days, but one day has 3 items less than the other days, what is the number if items for each of the remaining 6 days?

Penny Nom lui répond.
Find his income on the fourth week of August. 2011-03-22
Abeth pose la question :
The average weekly income of MJ for the first three weeks of August was 3,600 and his average weekly income for four weeks is 3950. Find his income on the fourth week of August.
Penny Nom lui répond.
Tony and his friends 2011-03-21
Mieke pose la question :
Using the following statements and the information given, how much money did each friend have.
Mike says, "I have $41.00 more than Tony."
Jessica says, "I have 6 times as much as Tony plus $2.00."
Ashley says, "I have 13 times the amount Tony has."
Sara says, "I have the 8 times the amount Tony has."
The total together they had was $304.00

Penny Nom lui répond.
A verbal problem 2011-03-20
tom pose la question :
mrs. jhonson planned to spend $78 for fabric to make draperies. She found her fabric on sale at 20% less per yard than she expected and was able to buy her drapery fabric plus 4 extra yards for bedspread for $83.20. how much fabric had she planned to buy and what was the original cost per yard?
Stephen La Rocque lui répond.
How much per ft. does it cost? 2011-03-14
Linda pose la question :
350 lbs. of coil at $1.80 per lb equals $630. each coil is 780 ft. how much per ft. does it cost?
Penny Nom lui répond.
A two digit number 2011-03-01
jhoanna pose la question :
the sum of the digits of a two digit number is 10. The value of the number is 16 times the units digit.Find the number.
Penny Nom lui répond.
Find the dimension of the original rectangle 2011-02-28
sandra pose la question :
the perimeter of a rectangle is 40 cm. if the length were doubled and the width halved, the perimeter would be increased by 16cm. Find the dimension of the original rectangle
Robert Dawson lui répond.
A word problem 2011-02-26
Barb pose la question :
there are five times as many children as adult at a playground. There are 60 people on the playground.

write an algebra equation that represents this situation. Be sure to define your variables.(start with statement "Let X= ___")

Penny Nom lui répond.
Tom has 12 times as much money as Bill 2011-02-18
Chris pose la question :
Tom has 12 times as much money than Bill. Together they have $325 dollars. How much does each boy have?
Stephen La Rocque lui répond.
Two conical tanks 2011-02-17
rustom pose la question :
Two vertical conical tanks (both inverted) have their vertices connected by a short horizontal pipe. One tank, initially full of water, has an altitude of 6 ft. and a diameter of base 7 ft. The other tank, initially empty, has an altitude of 9 ft., and a diameter of base 8 ft. If the water is allowed to flow through the connecting pipe, find the level to which the water will ultimately rise in the empty tank (Neglect the water in the pipe.)
Penny Nom lui répond.
(1-1/2)(2-2/3)(3-3/4)...(15-15/16)=n!/16 2011-02-15
Fiona pose la question :
Could you help me find the value of n: (1-1/2)(2-2/3)(3-3/4)...(15-15/16)=n!/16
Penny Nom lui répond.
What is the 6001st digit that Sam wrote? 2011-02-15
Sarah pose la question :
Sam wrote the natural numbers from 1 to 5280 in order. What is the 6001st digit that Sam wrote?
Penny Nom lui répond.
Throwing a football 2011-02-08
Janet pose la question :
a football is thrown into the air from 2 meters high. After 1 second it is 6.9 meters high. After another second it is 2 meters high. How high is it after 1.02 seconds and .05 seconds? when will it reach 5.136 meters? I am not sure how to extract the numbers I need and what equations to use them in?
Stephen La Rocque lui répond.
Reversing the digits 2011-02-08
rejie pose la question :
if the digits are reverse , the number is 9 less than the original number.what is the equation?
Penny Nom lui répond.
An even multiple of 27 2011-02-01
parth pose la question :
the 6 digit # 63x904 is an even multiple of 27 what is X
Penny Nom lui répond.
The area of a rectangle 2011-01-31
T.S. pose la question :
for which value of w does the rectangle below have an area of 864 square units if sides are width=w+15 and length=w-15
Penny Nom lui répond.
A rectangle 2011-01-16
meg pose la question :
if a rectangle has a length that is 3cm less than 4 times its width and its perimeter is 19cm, what are the dimension?
Penny Nom lui répond.
Matt is thinking of two numbers 2011-01-14
mary pose la question :
Matt is thinking of two numbers. One number is 9 more than the other number. The sum of the numbers is 45. What are the numbers?
Penny Nom lui répond.
The height of a lamp 2011-01-13
Dorothy pose la question :
I need to find the lamp height with casting shadow (base line of triangle where a boy 1.6m tall stands 3m from base of street lamp and has a 2m shadow. In other words, think of a right angle triangle with zero height starting at left, then 2m to right stands boy (1.6m high). Angle (hypotenuse) increases up to top of street lamp with 'x' height and 3m base.
Penny Nom lui répond.
The weight of a tank 2011-01-11
tom pose la question :
A tank, open at the top is made up of thin sheet iron 1in. thick. The internal dimensions of the tank are 4 ft. 8in. in long ;3 ft. 6 in.in wide ;4ft 4 in. in deep Find the weight of the tank when empty, and find the weight when full of salt water. (Salt water weighs 64 lbs. per cu. ft., and iron is 7.2 times as heavy as salt water)
Harley Weston lui répond.
Draw a figure with 16 triangles using only 6 line segements 2010-12-16
Jill pose la question :
How can you draw a figure with 16 triangles using only 6 line segements?
Stephen La Rocque lui répond.
The length is twice its breadth 2010-12-09
jenu pose la question :
The length of the rectangular field is twice its breadth. A man jogged around it 5 times and covered a distance of 3 km. what is the length of the field?
Penny Nom lui répond.
Fifty votes were cast in a class election 2010-12-03
nympha pose la question :
Fifty votes were cast in class election, Beth got 1/5 of the votes. Helen got as many votes as Jane and Peter put it together. Peter got 1/3 as much votes as Jane. How much votes did each of the four candidates received?
Stephen La Rocque lui répond.
How many gallons of water will it take to fill a classroom? 2010-12-01
deena pose la question :
How many gallons of water will it take to fill a classroom that is 26 feet long by 19 feet wide and 9 feet high? How many tons of water will that be?
Stephen La Rocque lui répond.
A rectangular piece of plywood 2010-11-30
Austin pose la question :
A rectangular piece of plywood is trimmed to make it square by cutting a 4cm strip off the top and a 2cm strip off one side. If the area of the original piece is 74cm2 greater than the area of the square, find the dimensions of the rectangle.
Penny Nom lui répond.
Two girls agree to mow a lawn 2010-11-23
Milorad pose la question :
Two girls agree to mow a lawn 60m by 80m so that the first girl cuts one half by cutting a uniform strip around the lawn. How wide a strip should the first girl cut?

I've been struggling with the question above, mainly with the equation and I have set it up as 2400=(60-2x)(80-2x), if this is incorrect I would like to know where I've gone wrong and also would like a full answer to see it properly done. I need an algebraic answer and not one with a diagram.

Penny Nom lui répond.
Will the ball clear the tree? 2010-11-14
MK pose la question :
Sam hits a golf ball with a five-iron a distance of 120m horizontally. A tree 45m high and 35m in front of Sam is directly in the path of the ball. Will the ball clear the tree if the ball makes a parabolic curve and has a maximum height or 80m?
Brennan Yaremko lui répond.
Three consecutive odd integers 2010-11-07
karen pose la question :
find three consecutive odd integers such that twice the sum of the second and the third is 43 more that three times the first
Penny Nom lui répond.
Nickels as dimes 2010-11-06
Exie pose la question :
Clara has the same number of nickels as dimes in each jar. there are 15 cent in one jar and 30 cents in the other. how many of each coin does she have in each jar? I'm home schooling my granddaughter and this problem has me stumped..could you please help? thanks
Robert Dawson lui répond.
Bbippities, bops, and boos 2010-11-05
Stacey pose la question :
six bippities equal three bops,and six bops equal two boos. How many boos are there in one bippity,one bop, and one boo??
Stephen La Rocque lui répond.
Nickels and dimes 2010-11-05
kebede pose la question :
John has 20 fewer nickels than dimes. The total of the nickels and dimes if $12.35. ow many of each coin does she have?
Penny Nom lui répond.
Four tires and a spare 2010-11-04
stacey pose la question :
a car is driven 40,000 miles using four tires and a spare. the tires are rotated so that each tire travels the same number of miles. What is the number of miles traveled by each tire??
HINT: the answer is not 8,000 miles each..

Penny Nom lui répond.
A box full of oranges 2010-10-28
Mary pose la question :
A box full of oranges weighs 9 pounds. After a family ate 2/3 of the oranges, the remaining oranges and the box weighed 4 pounds. The weight of the box when empty is how many pounds?
Penny Nom lui répond.
Electronic cars around a circular track 2010-10-11
Taylor pose la question :
Cory and Melissa are racing electronic cars around a circular track. They begin at the same time going in the same direction. Cory's car completes a revolution in 35 secs, while Melissa's car completes a revolution in 30 secs. How long will it take them before both cars reach the starting point again simultaneously?
Stephen La Rocque and Penny Nom lui répond.
Two numbers 2010-09-14
Sania pose la question :
math homework help-Felicia is thinking of two numbers. One of them is 2 more than 3 times the other one. The difference between the squares of these numbers is 112. What is the smaller number?
Penny Nom lui répond.
Choose any three digits that are less than ten 2010-09-12
cecille pose la question :
my son have a homework, but i don't understand the question. here's the problem:
choose any three digits that are less than ten.
make all the two digit number you can using those three digits.
add up the two digit numbers you created and divided by the sum of the original three digits.
record your answer. then do it again with another three digits. write your observation about the answer.

Claude Tardif lui répond.
Mrs. Johns graded 121 math tests. 2010-09-10
Tums pose la question :
Mrs. Johns graded 121 math tests. It took her 3 hours to grade all of the tests. Each test took the same amount of time to grade. About how many test did Mrs. Johns grade in 2 hours?
Penny Nom lui répond.
A truck goes south and then east 2010-08-26
MARK pose la question :
A truck starts at point A and drives South 3 miles. Then it turns left at Point B and drives east four miles to point C. How many miles is the truck at point C from point A if it were to drive directly from point A to Point C.My book says the answer is 5 miles. How did they come up with the answer?
Robert Dawson lui répond.
12 coins 2010-07-07
Eden pose la question :
We have 12 coins same in size and shape and also weight. But among these, one coin which has same size and shape, but not in weight and we can't know that this coin was lighter or heavier. We must decide which coin was lighter or heavier among these 12 coins in 4 times of weighting with scale.
Stephen La Rocque and Tyler Wood lui répond.
A collection of baseball cards 2010-07-01
Martha pose la question :
Cody has a collection of baseball cards. Is it possible for him to place the cards into 5 boxes so that exactly 3 of the boxes contain an odd number of cards and the total number of cards in two of the boxes is the same as the total number in the other 3 boxes? Explain.
Robert Dawson, Penny Nom and Claude Tardif lui répond.
The product of 2 consecutive integers 2010-06-28
Sharon pose la question :
the product of 2 consecutive integers is -6 less than the square of the larger number. find the smaller number
Penny Nom lui répond.
Roosters, hens and chicks 2010-06-10
Kamarah pose la question :
If a rooster is worth 5 coins and a hen is worth 3 coins and chicks 3 together are worth 1 coin, how many roosters, hen and chicks totaling 100 can be bought with 100 coins?

notes:
you must buy at least one of each type of fowl
no fractional fowl
chicks are purchased in multiple of 3
find 3 solutions

Penny Nom lui répond.
The tires on Helen's new car 2010-06-08
Rich pose la question :
Helen bought a new car with four tires and a full-size spare. If she rotated the tires so that each tire would have the same amount of wear, then how many miles were on each tire when her odometer showed 40,000 miles?
Penny Nom lui répond.
Going to the bike shop 2010-06-07
Omi pose la question :
Marie rode her bicycle from her home to the bicycle shop in town and then walked back home. If she averaged 6 miles per hour riding and 3 miles per hour walking, how far is it from her home to the bicycle shop if her total travel time was 1 hour?
Penny Nom lui répond.
Two problems 2010-05-27
debbie pose la question :

Question from debbie, a parent:

hi, i have a daughter and she asked me a maths question I cannot solve. I was just wondering if you can give me the answers plus the working out so I could explain to my daughter,

1. The leftmost digit of a six-digit number N is 1. If this digit is removed and then written as a rightmost digit, the number thus obtained is three times N .Find N.

2. Four friends are racing together down a flight of stairs. A goes 2 steps at a time, B 3 steps at a time. C 4 steps at a time and D 5 steps at a time. The only steps which all four tread on are the top one and the bottom one. How many stairs in the flight were stepped on exactly once?


Penny Nom lui répond.
What is the speed of the current? 2010-05-25
tien pose la question :
a boat travels upstream, against a current, at a speed of 4 miles per hour. On the return trip, the boat travels downstream, with the current , at 10 miles per hour. the speed of the current remains constant. what is the speed of the current?
Penny Nom lui répond.
How wide a strip has he cut when the lawn is half mowed? 2010-05-24
Arib pose la question :
rectangular lawn has length 40 m and width 30 m. David starts cutting from the outside in. How wide a strip has he cut when the lawn is half mowed?
Penny Nom lui répond.
What is the distance from A to C via B? 2010-05-24
vivianne pose la question :
The distance from A to B is d km and that from B to C is x km. if a bus maintains an average speed of 50km/hr between A and B and 60km/hr between B and C, it takes 3 hours to travel from A to C. If it maintains 60km/hr between A and B and 50km/hr between B and C, the journey takes 8 minutes less. What is the distance from A to C via B?
Penny Nom lui répond.
An optimization problem 2010-05-23
Marina pose la question :
Hello, I have an optimization homework assignment and this question has me stumped..I don't even know

A hiker finds herself in a forest 2 km from a long straight road. She wants to walk to her cabin 10 km away and also 2 km from the road. She can walk 8km/hr on the road but only 3km/hr in the forest. She decides to walk thru the forest to the road, along the road, and again thru the forest to her cabin. What angle theta would minimize the total time required for her to reach her cabin?
I'll do my best to copy the diagram here:

                             10km
Hiker_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Cabin
      \                           |                              /
       \                          |                             /
     f  \                      2km                          /
         \                        |                           /
theta   \___________________________ /
                            Road


Penny Nom lui répond.
How far is the runner from the starting point? 2010-05-22
Richard pose la question :
A marathon runner runs 6 miles south and then 8 miles east. How far is the runner from the starting point?
Tyler Wood lui répond.
How far am I from the starting point? 2010-05-18
jilayna pose la question :
if i walk 5 miles north, 7 miles east, and 3 miles north again.to the nearest tenth of a mile ,how far,in a straight line, am i from my starting point
Penny Nom lui répond.
The sum of twice a number and 6 is 8 2010-05-12
MAE pose la question :
THE SUM OF TWICE A NUMBER AND 6 IS 8 . FIND THE NUMBER
Penny Nom lui répond.
The product of two consecutive even integers 2010-05-11
Terry pose la question :
The product of two consecutive even integers is 14 more than their sum. Find the integers.
Penny Nom lui répond.
The dimensions of a driveway 2010-05-07
Josh pose la question :
Dave and Jane have a new rectangular driveway. The perimeter of the driveway is 168 feet. The length is 12 feet longer than three times the width. What are the dimensions of the driveway?
Penny Nom lui répond.
The width of a picture frame 2010-04-28
Daniel pose la question :
The frame of a picture is 28 cm by 32 cm outside and is of uniform width. What is the width of the frame if 200 cm ^2 shows?
Penny Nom lui répond.
A rectangular laundry room 2010-04-28
Cynthia pose la question :
a laundry room is shaped like a rectangle. the area of the room is 6 square yards. the perimeter is 10 yards. The room is longer than it is wide. How wide is the room? How long it the room?
Penny Nom lui répond.
A rectangular prism 2010-04-27
Savannah pose la question :
A rectangular prism is made of exactly 8 cubes. Find the length, width, and height.
Penny Nom lui répond.
A rectangular garden 2010-04-25
Billy pose la question :
Tanisha wants to make a rectangular garden with a perimeter of 38 feet. What is the greatest area possible that tanisha can make the garden?
Penny Nom lui répond.
A table of values 2010-04-22
Donna pose la question :
Complete the table by determining the value of each letter. Explain what rule is used to relate the numbers in the second column (with the heading of y) with those in the first column (with the heading of x).

x | y
3 | 5
9 | 23
4 | 8
6 | A
7 | B
C | 11
D | 2

I can't figure this out, can you help me?

Robert Dawson lui répond.
The length and width of a table 2010-04-19
Linda pose la question :
The length of the top of a table is 2 feet longer than 4 times the width. The area is 72m squared. Find the dimensions of the table.
Penny Nom lui répond.
What are the dimensions of the box? 2010-04-13
Steven pose la question :
The longest rod that will just fit inside a rectangular box, if placed diagonally top to bottom, is 17 inches. The box is 1 inch shorter and 3 inches longer than it is wide. How much must you cut off the rod so that it will lie flat in the bottom of the container? What are the dimensions of the box?
Robert Dawson lui répond.
A rectangle problem 2010-04-12
Charlene pose la question :
The ratio of the width to the length of a certain rectangle is equal to the ratio of its length to the difference between its length and twice its width. If the area of the rectangle is 25cm^2, then what are its dimensions? Present a non- algebraic solution?
Tyler Wood lui répond.
The perimeter of a rectangle 2010-04-12
Charlene pose la question :
The area of a rectangle is 390m^2. If its length is increased by 10m and its width is decreased by 6m, then its area does not change. Find the perimeter of the original rectangle.
Tyler Wood lui répond.
A cube with twice the volume 2010-04-11
Woojin pose la question :
From a given cube create another cube with twice the volume. the cube: 5cm each.
Tyler Wood lui répond.
Working backwards 2010-04-11
adel pose la question :
alice gave reggie and freddie as much money as each had already.reggie in turn gave alice and friddie as much money as each already had in negotiable treasury notes. freddie gave alice and reggie as much money as they each had. in the end they each had the same sum, 24000.00.how much money did they each in the beginning?
Penny Nom lui répond.
A max min problem 2010-04-06
Terry pose la question :
The vertex of a right circular cone and the circular edge of its base lie on the surface of a sphere with a radius of 2m. Find the dimensions of the cone of maximum volume that can be inscribed in the sphere.
Harley Weston lui répond.
A ratios problem 2010-04-01
Jules pose la question :
1a) If 2/3 of the boys and 3/4 of the girls at a party are dancing, what is the ratio of boys to girls, if all the dancing couples consist of a boy and girl?

b) If the total number of the boys and girls of the party is 153, how many boys are at the party?

Penny Nom lui répond.
Coins in 3 parking meters 2010-03-27
Zena pose la question :
There are 227 coins altogether in 3 parking meters. The second meter has 37 more coins than the first meter. The third meter has twice as many coins as the second. How many coins in each meter?
Penny Nom lui répond.
A ladder against a wall 2010-03-25
amber pose la question :
the distance from the bottom of the ladder to the building is18 foot less than the length of the ladder.How high up the building is the top of the ladder if that distance is 1 ft less than the length of the ladder?
Penny Nom lui répond.
What is the speed of the current? 2010-03-17
Carl pose la question :
If you can row 3 mph in still water and paddle 3 miles upstream and return in 3.6 hours then what is the speed of the current?
Penny Nom lui répond.
Gina's weight was 4/7 of Helen's weight 2010-03-14
Eileen pose la question :
At first, Gina's weight was 4/7 of Helen's weight. Then, Gina gained 3kg while Helen lost 6kg. They are the same weight now. What is Helen's weight now?
Penny Nom lui répond.
A red boat and a blue boat 2010-03-13
SERENA pose la question :
Two fishing boats set out at 2pm for some afternoon fishing. Both boats pulled out from the same dock heading in the same direction. The average speed of the blue boat is 30mph slower then twice the speed of the red boat. In two hours, the blue boat is 20 miles ahead of the red boat. Find the rate of the blue boat.
Penny Nom lui répond.
Selling lettuce 2010-03-11
Mike pose la question :
Day 1 started with 80 heads of lettuce and x were sold.
Day 2 started with two times the number of heads of lettuce that was left over. Again, only x were sold.
Day 3 started with 3 times the number of lettuce from what was left over from day 2 and all was sold.
What was the # of lettuce sold on each day?

Penny Nom lui répond.
Redwood Park and Glendale Park 2010-03-05
Shaun pose la question :
Question from Shaun, a student:

Redwood and Glendale Parks are each surrounded by 100 yards of fencing. The are of Redwood Park is 25 square yards more than the area of Glendale Park. If both parks are rectangles, what is the measurement of each rectangle?

Harley Weston lui répond.
How many people in total came to the museum that day? 2010-03-05
simon pose la question :
1354 people attended exhibition A and 1427 people attended exhibition B. 79% of people attended both exhibitions. How many people in total came to the museum that day
Penny Nom lui répond.
The area of a new parking lot 2010-03-04
nayle pose la question :
The owner of a parking lot at the beach wants to increase the parking area of the lot. If the owner increases each of the dimensions of the rectangular lot by half its original value, by what factor will the parking lot increase?
Penny Nom lui répond.
At what time would Joan catch Jo? 2010-03-04
Rusty pose la question :
If Jo left his house at 6:30am traveling at 5mph and Joan left the same house 7:00am traveling at 8mph, at what time would Joan catch Jo?
Penny Nom lui répond.
The dimensions of a rectangle 2010-03-03
Kirsten pose la question :
A rectangle is twice as long as it is wide. Its area is 128 square meters. What are the dimensions of the rectangle?
Tyler Wood lui répond.
Two adjacent rectangular dog pens 2010-03-01
Janet pose la question :
Clint is constructing two adjacent rectangular dog pens. Each pen will be three times as long as it is wide, and the pens will share a common long side. If Clint has 65 ft of fencing, what are the dimensions of each pen?
Penny Nom lui répond.
How many CDs and videos did the store sell? 2010-03-01
dawn pose la question :
A used book store started selling CDs and videos. In the first week,the store sold 40 used CDs and videos,at 4.00 per CD and 6.00 per video.The sales for both CDs and videos totaled 180.00 she wrote a system of equations to represent the situation.Then she graph the system of equations

thanks- Dawn

Tyler Wood lui répond.
A mixture problem 2010-02-24
Nathan pose la question :
How many gallons of 60% solution must be added to 40 gallons of a 10% solution to produce a 20% solution?
Penny Nom lui répond.
Dividing between between two charities 2010-02-22
Latoya pose la question :
a 149,000 estate is to be divided between two charities so that one charity receives 18,000 less than the other. How much will each charity receive?
Penny Nom lui répond.
15 men can do a piece of work in 7 days 2010-02-20
Kenneth pose la question :
If 63 books cost $126, what will 125 books cost?

If 15 men can do a piece of work in 7 days, in how many days can 21 men do the same work?

Penny Nom lui répond.
The dimensions of a flag 2010-02-15
dawn pose la question :
a state flag was twice as long as it was wide and had an area of 288 sq inches, what were its, dimensions
Thanks

Penny Nom lui répond.
What time did susan go to bed? 2010-02-14
Sophia pose la question :
Susan woke up at 7:42 Am to get ready for school. She slept for 10 and 1/3 hours. What time did she go to bed?
Stephen La Rocque lui répond.
Birds and cats 2010-02-13
Sophia pose la question :
While visiting a pet store, you notice that there are only birds and cats in the cages. You can't help but wonder how many of each animal there is in the yard. But when you ask the store manager how many of each animal he has, he refuses to give a direct answer. He says there are 16 animal heads and 42 animal feet. How many birds and cats are there in the pet store? It said to show all your work. Explain in words how you found your answer. Tell why you took the steps you did to solve the problem.
Penny Nom lui répond.
The perimeter of a semicircle 2010-02-04
Sarah pose la question :
The perimeter of a semicircle is doubled when the radius is increased by 7. Find the radius of the semicircle.
Tyler Wood lui répond.
Consecutive even integers 2010-02-03
cassandra pose la question :
find 2 consecutive even integers whose sum is 34

find 3 consecutive even integers such that 3 time the middle interger is 10 more than the greatest.

Tyler Wood lui répond.
Mixing oil 2010-02-03
Andrew pose la question :
A dealer wishes to produce 300 gallons of oil worth 40cents a quart. He has oil worth 36cents a quart and oil worth 52cents a quart. How many quarts of each should he mix?
Penny Nom lui répond.
A snail on an elastic band 2010-02-03
Joe pose la question :
A snail starts crawling from one end along a uniformly stretched elastic band. It crawls at a rate of 1 foot per minute. The band is initially 10 feet long and is instantaneously and uniformly stretched an additional 10 feet at the end of each minute. The snail maintains his grip on the band during the instant of each stretch. At what points in time is the snail
(a) closest to the far end of the band, and
(b) farthest from the far end of the band?

Robert Dawson lui répond.
A piece of string 8 inches long is cut in two pieces 2010-02-02
Susan pose la question :
If you have a piece of string 8 inches long and cut it in two pieces. Then take the pieces and forms each into a square such that the area of each squares added together equals 2. How long are the sides of the squares?

Susan

Penny Nom lui répond.
A decrease in travel time 2010-01-30
Mike pose la question :
if a 100 mile trip averages 50 miles per hour, how much distance does one need to travel at 90 miles per hour to decrease travel time by 10%
Stephen La Rocque lui répond.
An isosceles triangle 2010-01-28
Jazzy pose la question :
An isosceles triangle is a 2 congruent (equal) sides. Of the third side is three times the length of the congruent side(s), and the perimeter is 75 cm, find the length of all three sides of the triangle
Penny Nom lui répond.
What is the length of my sidewalk? 2010-01-27
Les pose la question :
Name: Les
Who are you: Student

I have a sidewalk 4"thick,4ft. wide,and I have 2cubic yards of concrete. What is the length of my sidewalk?

Penny Nom lui répond.
How high up the building does the ladder reach? 2010-01-19
rosenda pose la question :
A 10 meter ladder is 6 meter from the base of a building. How high up the building does the ladder reach?
Robert Dawson lui répond.
Setting up an algebraic equation 2010-01-18
jerry pose la question :
the 1st of 4 books has twice as many pages as the 3rd. The 2nd book has 30 pages less than the 1st. The 4th has 42 pages more than the 1st and 2nd books combined. there are 567 pages in total. How many pages are in each book.
Penny Nom lui répond.
Gail and Bill drove to the beach 2010-01-10
Nicole pose la question :
Gail and Bill drove to the beach at an average speed of 50mph. They return home over the same road at an average speed of 55mph. The tip took 30 min less time. How far is the beach from their house?
Stephen La Rocque lui répond.
Cows, pigs and ducks 2010-01-06
Eileen pose la question :
There are 239 cows and pigs in a farm. The total number of cows and ducks in the farm is 767. There are 5 times as many ducks as pigs. If the farmer can sell each duck for $7.50, how much can he collect from the sale of all his ducks?
Robert Dawson lui répond.
Dividing seashells among girls 2010-01-06
Eileen pose la question :
A group of girls collected some seashells from the beach. They tried to divided these seashells equally among them. If each girl received 8 seashells, they would need 5 more seashells. If each girl received 7 seashells, they would have 3 seashells extra. How many seashells did they collect from the beach altogether?
Robert Dawson and Penny Nom lui répond.
Write a function for the area in terms of x 2010-01-01
Almarie pose la question :
Lauren has 40 feet of metal fencing material to fence three sides of a rectangular garden. A tall wooden fence serves as her fourth side. Write a function for the area of the garden A in terms of x, the width in feet.
Penny Nom lui répond.
The Snail Problem 2009-12-28
kishore pose la question :
A snail starts crawling from one end along a uniformly stretched elastic band. It crawls at a rate of 1 foot per minute. The band is initially 10 feet long and is instantaneously and uniformly stretched an additional 10 feet at the end of each minute. The snail maintains his grip on the band during the instant of each stretch. At what points in time is the snail (a) closest to the far end of the band, and (b) farthest from the far end of the band?
Janice Cotcher lui répond.
A ball is thrown upwards 2009-12-17
Reuben pose la question :
A ball is h meters above the ground t seconds after it is thrown where h(t) = 40t – 5t ^2 . Find the time at which the ball first reaches a height of

(a) 10 meters
(b) 40 meters
(c) 100 meters

Harley Weston lui répond.
A 4 digit number 2009-12-15
Lisa pose la question :
Billy Club was assigned the task of putting numbers on all the playground balls used during daily recess. Billy will number the balls using the following rules:

1. It will be a 4-digit number.

2. The digit in the thousands place will be a 1 or a 2.

3. The digit in the hundreds place will be a 2, 4, or 6.

4. The digit in the tens place will be an odd number.

5. The digit in the ones place will be greater than six.

How many balls can Billy number if he follows these rules?

Robert Dawson lui répond.
A telephone pole on a slope 2009-12-14
Marissa pose la question :
A 10 meter telephone pole casts a 17 meter shadow directly down a slope when the angle of elevation of the sun is 42 degrees. Find the angle of elevation of the ground. Its a law of sines problem.
Penny Nom lui répond.
Two adjacent pig pens 2009-12-04
alysia pose la question :
A pig farmer wants to build two adjacent pens using 96 feet of fencing. He wants rectangular pens that share the short side and the overall length is to be six more than twice the width. What should be the dimensions of the overall pen?
Penny Nom lui répond.
The dimensions of a rectangular room 2009-11-26
crystal pose la question :
. The length of a rectangular room is 7 feet longer than its width. The area of the room is 60 feet. What are the dimensions of the room?
Penny Nom lui répond.
Matt has 40 coins 2009-11-18
Amy pose la question :
Matt has 40 coins(nickels, dimes, and quarters). The total amount is $4.05. He has 7 more nickels than dimes. How many quarters does he have?
Penny Nom lui répond.
Two movies in one day 2009-11-18
jazzy pose la question :
ann and tim saw two movies in one day.The two movies lasted 4hours long .One movie was an half hour longer than the other .How many hours did the shorter movie run
Penny Nom lui répond.
How many girls are there in the class? 2009-11-18
Anisa pose la question :
There are 30 students in a class. A quarter of the boys ans half of the girls study music, making a total of 11 music students. How many girls are there in the class?
Penny Nom lui répond.
Pennies and dimes 2009-11-11
Rachel pose la question :
Kesha had only pennies and dimes in her change purse. When she counted out her change she had 64 cents/ of she had 6 times as many pennies as she did dimes, how many pennies did she have? Write equation and solve it.

Can someone help me with this?

Penny Nom lui répond.
Sarah's age 2009-10-31
Kenneth pose la question :
2/3 of Mary’s age equals Sarah’s age and 3/4 of Ruth’s age equals Sarah’s age. If the total ages equal 46, how old is each girl?
Claude Tardif lui répond.
Where is the Father? 2009-10-30
Jeffrey pose la question :
A mother is 21 years older than her kid and within 6 years the child will be 5 times younger than the mother. Where is the Father? Jeffrey
Robert Dawson and Claude Tardif lui répond.
Sarim has $1 in coins. 2009-10-27
Elizabeth pose la question :
Here is the question asked: Sarim has $1 in coins. One-fifth of the coins are dimes, two-fifteenths are nickels, and two-thirds are pennies. Tell how many of each coin he has. I am not sure how to start this problem.
Penny Nom lui répond.
Books on a shelf 2009-10-25
Julie pose la question :
a bookshelf is 36 inches long and contains (x) books each (n) inches thick. If each book half an inch thinner, the shelf would hold six more of the same book. What is x/n
Penny Nom lui répond.
A word problem 2009-10-24
Ryan pose la question :
Two times one number plus 7 times another number is equal to 17. the first number plus the second number is equal to 25. What are the two numbers? Please Help!
Penny Nom lui répond.
The three angles of a triangle 2009-10-13
Michelle pose la question :
The second angle of a triangular garden is four times as large as the first. The third angle is 45 less than the sum of the other two angles. Find the measure of the other two angles?
Penny Nom lui répond.
What fraction of my goal has been raised? 2009-10-13
sally pose la question :
If my goal is to raisel $300 and I have only raised $240 what fraction of my goal has been raised
Penny Nom lui répond.
How many gallons does it contain when it is 1/6 full? 2009-10-13
Bren-Nesha pose la question :
A tank contains 200 gallons when it is 4/5 full. How many gallons does it contain when it is 1/6 full? I already know the answer but i would like to know how to arrive at the answer.
Penny Nom lui répond.
A right triangle 2009-10-12
Josseph pose la question :
A right triangle has an area of 84ft sq. and a hypotenuse 25ft long. What are the lengths of the other two sides?
Penny Nom lui répond.
The area of a rectangle 2009-10-10
Ann pose la question :
given a rectangle with sides a and 2a and diagonal d, find the area of the rectangle as a function of the diagonal,d
Penny Nom lui répond.
$6.25 in nickels quaters and dimes 2009-10-10
miriam pose la question :
a piggy bank contains $ 6.25 in nickles quaters and dimes. there are 65 coins all together and there are four times as many nickles as quaters find the number of coins of each kind
Penny Nom lui répond.
Two rectangles 2009-10-08
Lillian pose la question :
A rectangle is 5cm longer than twice its width. The width of another rectangle is 3cm less than the width of the first rectangle and its length is 6cm more than 3 times its width. If the perimeters are equal, find the dimensions of both rectangles
Penny Nom lui répond.
A dog tethered to a round building 2009-09-28
mido pose la question :
One dog was linked to the outer wall of a building round of 20 meters in diameter. If the length of chain linking the dog sufficient turnover of half the distance around the building, What area can guard dog?
Harley Weston lui répond.
Sandra's age 2009-09-24
cindy pose la question :
Sandra is more than 20 years old and less than 60 years old. You can count by 7's to reach Sandra's age. Next year you will be able to count by 5's to reach Sandra's age. How old is Sandra?
Penny Nom lui répond.
24 golfers: 4 days 2009-09-21
Steven pose la question :
We have 24 golfers (6 A's, 6 B's, 6 C's & 6 D's) playing 4 days. Each day a foursome consist of an A, a B, a C & a D player. Can you give me a pairing list so that no two golfers will play on the same foursome for the 4 days?
Chris Fisher and Victoria West lui répond.
How long would it take the students to arrive at their campsite 2009-09-18
amanda pose la question :
..."A group of 5th grade student in New Zealand are going camping. They will hike from Wellingto to Ruapehu. Then they will follow a trail for another 1/2 mile to their campsite." Ok, 1 mile equals 5,280 feet. The class decided one step length is equal to 15 inches and there are 85 steps in 1 minute. Now for the question: About how long would it take the students to arrive at their campsite, if they don't make any stops???
Robert Dawson lui répond.
Jogging and swimming 2009-09-11
Brandon pose la question :
Trevor swims jogs 3 days and swims every 4 days. How often does he jog and swim on the same day
Leeanne Boehm lui répond.
A ladder leaning against a wall 2009-09-08
Mackenzie pose la question :
A 7 foot long ladder is leaning against the building. The foot of the ladder is 2 feet from the base of the building. How far up the wall is the top of the ladder?
Stephen La Rocque lui répond.
A circular border around a pool 2009-09-08
Calvin pose la question :
A pool in the shape of a circle measures 10 feet across. One cubic yard of concrete is to be used to create a circular border of uniform width around the pool. If the border is to have a depth of 3 inches, how wide will the border be? ( 1 cubic yard=27 cubic feet )
Stephen La Rocque lui répond.
Helen has twice as many dimes as nickles. 2009-09-08
Dan pose la question :
Helen has twice as many dimes as nickles. She has 5 more quarters than nickles. She has $4.75. How many nickles does she have? I know she has 14 dimes, 7 nickles and 12 quarters. How do you put this into an algebra equation?
Stephen La Rocque lui répond.
Nickels and dimes 2009-09-03
MATTHEW pose la question :
mike has 3 times as many nickels as Larry has dimes. Mike has 45 cents more than Larry. How much money does Mike have?
Penny Nom lui répond.
Nickels, dimes and quarters 2009-09-02
danielle pose la question :
In changing a $5 bill, Sarah received nine more dimes than nickles and seven fewer quarters than dimes. How many coins of each type did she receive?
Penny Nom lui répond.
Investing in four accounts 2009-08-29
Kenneth pose la question :
Hello: An investor wants to divide $1000.00 into four amounts or accounts -- one account earning 2%, the second account earning 5%, the third earning 9%, and the fourth earning 12%. He wants the overall total return to equal 5%. What are some of the monetary amounts that can be invested into these four accounts to earn him the 5% total return, 5% of $1,000.00?
Penny Nom lui répond.
Chickens and pigs 2009-08-28
David pose la question :
A farmer has a number of chickens and pigs. There are 24 heads and 80 ft. How many pigs and how many chickens are there?
Robert Dawson lui répond.
Linear equations 2009-08-23
shwetha pose la question :
The length of a rectangle is greater than the breadth by 18 cm. If both length and breadth are increased by 6 cm then area increases by 168 cm square. Find the length and breadth of the rectangle.
Stephen La Rocque lui répond.
Golf for 15 2009-08-18
Judy pose la question :
We have a group of 15 golfers that play a scramble with groups of 3. The problem is we play for 14 weeks. We want every player to play at least once with everyone and no more that 3 times. I am working on this and have just about accomplished the schedule, but with a few playing more than 3 times. I'm sure there must be some mathematical calculation to do this but I have yet to figure it out.
Victoria West lui répond.
Big and small widgets 2009-08-17
Leanne pose la question :
A machine makes big widgets. Another machine makes small widgets. 3 small widgets have the same mass as 2 big widgets. It takes the same amount of time to make 3 big widgets as it does to make 5 small widgets. The machines start at the same time and make widgets until the total mass of all the widgets made is equal to the mass of 380 small widgets. What is the total number of widgets made? (Please include workings).
Penny Nom lui répond.
A walkway around a flower garden 2009-08-01
Barbara pose la question :
A rectangular flower bed measuring =C2=A0 10 feet by 15 feet =C2=A0 has a surrounding walkway on all sides that measure 186 square feet. How wide is the walkway?
Harley Weston lui répond.
Two word problems 2009-07-31
Lee pose la question :
1) a student saved $50.25 in one month. at that rate how long will it take the student to save $700?

2) for summer job, martin shampooed rugs. he could finish a 4mx 4m rug in 30 min. his supervisor could finish a similar:smaller rug in 20 min. how long would it take for them to finish the rug if they worked together?

Robert Dawson lui répond.
A father and son problem 2009-07-23
yomi pose la question :
five years ago, a father was 3 times as old as is son, now their combines age's amount 110 years. what is the present age of the father?
Penny Nom lui répond.
Buying pens and staplers 2009-07-22
Ellen pose la question :
one more math question,
six pens and four staplers cost $7.10. four pens and seven staplers cost $9.50 find the cost of one pen and one stapler.

Penny Nom lui répond.
Selling fish 2009-07-22
Hemantee pose la question :
A fishmonger bought 150kg of fish. he sold 70%of it at the price of Rs90 per kg and the rest at Rs 75 per kg. he made a profit of 42.5 per cent. how much did he pay for the fish.
Penny Nom lui répond.
The girl guides bake sale 2009-07-20
Barbra pose la question :
here is two questions i need help with,
1.)A toastmasters tea was attended by 550 people. Students paid 75 cents for their tickets, and the adults paid $1.20. if the recipts totaled $525, how many adults and how many students attended?
2.) One cookie and six bars cost $2.00 at the girl guides bake sale. At the same sale, three bars and six cookies cost $2.10. Find the cost of one cookie and the cost of one bar.

Penny Nom lui répond.
Portion of Work 2009-07-17
Ellen pose la question :
A girl can shampoo the dog, clean his ears, and clip his nails in 45 minutes. Her sister can do it in 60 minutes. How long will the job take it they work together?
Stephen La Rocque lui répond.
The product of two consecutive integers 2009-07-13
kelly pose la question :
the product of two consecutive integers is 9 less than the square of the second integer
Penny Nom lui répond.
A base 7 number and a base 9 number 2009-07-09
koteawarao pose la question :
Find a base 7 three-digit number which has its digits reversed when expressed in base 9.

ans: (281) base 7 and (182) base 9

Harley Weston lui répond.
The sides of a triangle 2009-07-08
Susan pose la question :
The second side of a triangle is 5ft more than the length of the first side. The third side of the triangle is 10ft less than the length of the first side. The perimeter of the triangle is 61ft. Find the lengths of each side of the triangle.
Thank you so much!

Penny Nom lui répond.
Mowing 17 lawns 2009-06-18
kevin pose la question :
I need help setting up a equation to solve the following question: If a gardener can mow 3 lawns in 7 hours, how long should it take him to mow 17 lawns. I can solve the problem, but I don't know how to set up the equation.
Penny Nom lui répond.
The dimensions of a rectangle 2009-05-30
Linda pose la question :
A rectangle has a perimeter of 38 feet & an area of 48 square feet. What are the dimensions of the rectangle?
Stephen La Rocque lui répond.
Two trains 2009-05-18
chris pose la question :
Train A passes a station at 3:15am going 40mph. Train B passes the same station at 3:27am going 50mph. At what time will Train B catch up with Train A?
Stephen La Rocque lui répond.
An afternoon at the races 2009-05-15
garths pose la question :
A professional gambler was betting at a horse racing afternoon.
At the end of the first race he had doubled his money.
He bet R30 on the second race and tripled the money he came with.
He bet 54 on the third race and quadrupled (4 times) the money he came with.
He bet R72 on the fourth race and lost it all. But he still had R48 left.
How much money did he take to the race track?

Harley Weston lui répond.
A reward and a fine 2009-05-12
garth pose la question :
A maths teacher promised a learner that she would pay him R8 for each problem solved correctly, but she would fine him R5 every incorrect solution. At the end of 26 problems neither owed any money to the other. How many problems did the learner solve correctly?
Robert Dawson and Penny Nom lui répond.
A two goat problem 2009-04-27
Michael pose la question :
if you have a goat tied to a pole at one corner of a square paddock with one length of a side being 24m. what length must the rope be for the goat tied up to graze half the paddock? and if another goat is placed on the opposite corner and same length what is the amount of area they share grazing ?
Stephen La Rocque and Penny Nom lui répond.
A word problem involving y = mx + b 2009-04-24
Devon pose la question :
I need to put the following question in to y=mx+b form

I rent a gym for $150.00 for 30 students. Another time I rent the gym for @270.00 for 70 students. I need to also find a fixed rate.

Stephen La Rocque lui répond.
Nickles and dimes 2009-04-17
Emily pose la question :
a vending machine contains nickels and dime coins which totals an amount of $14.50. There are 95 more nickels than the number of dime coins. How many of each coin does exist?
Penny Nom lui répond.
Three consecutive odd integers 2009-04-02
Brian pose la question :
Find the greatest of three consecutive odd integers if the product of the second and third is 8 more than 13 times the first.
Robert Dawson lui répond.
A max-min problem 2009-03-24
Jay pose la question :
Determine the area of the largest rectangle that can be inscribed between the x-axis and the curve defined by y = 26 - x^2.
Harley Weston lui répond.
The height of a mountain peak 2009-03-23
james pose la question :
Can you please help us (my son Jim geometry) out with this problem, we cannot seem to find the correct method of solving, not sure how to solve the scalene triangle with what is given...if that's the correct method?? Can you please explain how this is solved!!

Thank you so much,

Jim and son !

Harley Weston lui répond.
Problem solving 2009-03-21
susie pose la question :
the product of a number and 9 increased by 15 is the same as one half of the difference of eight and four times the number. Find the number.
Stephen La Rocque lui répond.
The perimeter of a rectangle 2009-03-18
marylyne pose la question :
the perimeter of the rectangular is 70 meters. if the width is 40% of the length, find the dimensions?
Penny Nom lui répond.
Stacking eggs 2009-03-12
Prashanth pose la question :
if you stack two eggs eah in row you must get 1 balance
if you stack three eggs eah in row you must get 2 balance
if you stack four eggs eah in row you must get 3 balance
if you stack five eggs eah in row you must get 4 balance
it goes on like 6 , 7 , 8 and finally
if you stack nine eggs eah in row you must get 8 balance what would be the answer and how to reach it

Robert Dawson lui répond.
Three consecutive odd integers 2009-03-11
Susan pose la question :
Find three consecutive odd integers such that the sum of the first, twice the second, and three times the third is 70
Penny Nom lui répond.
Marcia's summer earnings 2009-03-11
Yasmine pose la question :
Marcia saved money by working over the summer. Before school started, she spent 25%of the money of jewelry and then 2/3 of the remaining money on a digital camera. She still had $213 left. How much money did she have before she started shopping?
Robert Dawson and Penny Nom lui répond.
2 types of season passes 2009-03-09
Jaquanta pose la question :
A local water park has 2 types of season passes. Plan A costs a one - time fee of $142 for admission plus $8 for parking every trip. Plan B costs a one - time fee of $56 for parking plus $25 for admission every trip. How many visits must a person make for plan A and plan B to be equal in value?
Penny Nom lui répond.
A walkway through a park 2009-03-07
felicia pose la question :
a diagonal walkway through a park is 18 meters long. If the park is a square, how long is one of its sides to the nearest tenth of a meter?
Penny Nom lui répond.
The angles in a parallelogram 2009-03-03
dolly pose la question :
having a time-with equations inequaltites and problem solving= the sum of the measure of the angles of a parallelogram is 360.anglesa a and d , have the same measure as angle c and d,c is twice the measure of angle a, what is the angle for each.
Penny Nom lui répond.
Collecting an army 2009-02-25
bevaz pose la question :
Question from bevaz, a student: A ruler orders his chamberlain to collect an army from 30 houses. The servant goes to the first house alone and collects one man. At each house after that he takes the same number of men as he has already collected, so at the second house he goes with one other and so on. How many men did he collect in all?
Penny Nom lui répond.
Two pages are attendants of a king 2009-02-24
Lauren pose la question :
Two pages are attendants of a king. For their service, one gets 13/6 dinaras a day and the other gets 3/2 dinaras. The first page owes the second 10 dinaras. Calculate when they will have the same amount.
Penny Nom lui répond.
Three people working in pairs 2009-02-21
bevaz pose la question :
A and B can together do a piece of work in 6 days, B and C together in 20 days and C and A in 7.5 days. how long will they require separately for the work?
Penny Nom lui répond.
Washing the dishes 2009-02-20
rm pose la question :
a woman washing a large number of dishes after a meal was asked how many people attended the meal. she did not know but 'every two used a dish of rice between them, every three a dish for soup and every four a dish for meat, and there were 65 dishes in all.' how many people were there?
Robert Dawson lui répond.
A dinner party 2009-02-18
will pose la question :
You are serving 3 different entrees at a party. If 100 guests are having beef, 175 guests are having pasta, and 45 percent of the guests are having chicken how many guests are expected at this party?
Penny Nom lui répond.
Broken vases 2009-02-17
JC pose la question :
Hello, I need help with a question. It is said that a company delivers 1000 vases to a man. It charged $0.40 for every vase safely delivered. But the company had to pay the man $5.10 for each broken glass. If the man paid a total of $383.50 for the delivery, how many vases were broken?

Regs. ,
JC

Penny Nom lui répond.
Frogs and kangaroos 2009-02-16
Jenny pose la question :
Albert, Bernard, Charles, Daniel and Ellie play a game in which each is a frog or kangaroo. Frogs' statements are always false while Kangaroos' statements are alwas true. 1. Albert says that bernard is a kangaroo. 2. Charles says that Daniel is a frog. 3. Ellie says that Alvert is not a frog. 4. Bernard says that Charles is not a kangaroo. 5. Daniel says that Elie and Albert are different kinds of animals. How many frogs are there?
Penny Nom lui répond.
A and B shared some beads. 2009-02-15
Nicholas pose la question :
A and B shared some beads. A gave 1/3 to B, B will have 70 more than A. If A gave 1/5 to B, B would have 10 more than A. A have how many at first ?
Penny Nom lui répond.
A goat in a square paddock 2009-02-10
lachlan pose la question :
A farmer uses a rope to tether a goat to a pole at the corner of a square paddock. The length of one side of the square is 24m.

a) If the length of the rope is 12m,what % of the paddock can the goat reach? is the answer 19.62 %?

b) If the farmer wants the goat to be able to graze exactly half the area of the paddock, what length must the rope be?

Penny Nom lui répond.
A rectangular park 2009-02-06
Debbie pose la question :
A park named Writer's Rectangle opened in town. When asked about the dimensions of the rectangle, the city planner, responded with these clues: ---The diagonals of the rectangular park plus its longer sides together measure seven times one of the shorter sides. ---The length of one diagonal is 250 m longer than one of the shorter sides. Use this information to find the area of the park.
Stephen La Rocque lui répond.
Randy' age and Mandy's age 2009-02-03
carolina pose la question :
Randy is 4 times as old as Mandy, in 12 years, Mandies age is half of Randy's . how old is each now?
Penny Nom lui répond.
Whitney's average test score was 79 2009-01-30
dawn pose la question :
After 5 tests, Whitney's average test score was 79. After she scored 85 on the 6th test. What was her new average?
Penny Nom lui répond.
Mixing candy 2009-01-27
adriana pose la question :
The question says:
that a merchant wishes to mix candy worth 45 cents per pound, with some candy that costs 80 cents per pound. this will create a mixture of candy that sells for 65 cents per pound. there is a total amount of 350 pounds of candy.

What i need to know is:
The amount of pounds of candy at 65 cents per pound? and
The amount of pounds of candy at 80 cents per pounds?

Harley Weston lui répond.
Probability and birthdays 2009-01-22
La pose la question :
Neglecting the effect of leap years, what is the chance that, of 6 people selected at random, 2 will have the same birthday?
Penny Nom lui répond.
The dimensions of a pool 2009-01-18
denise pose la question :
a rectangular swimming pool is three times as long as it is wide. if the perimeter of the pool is 320 feet, what are its dimensions
Penny Nom lui répond.
Problem solving with fractions 2009-01-16
Linda pose la question :
Sam and Mary each owned one-half stock in a printing company. Sam sold 2/5 of his stock to Mary. What fractional part of the printing business does Mary now own?
Stephen La Rocque lui répond.
Two methods of payment 2009-01-13
adjoa pose la question :
owen was offered $225.00per week plus 3%on sales, or 15%of sales with no salary. How much must he sell before the second method of payment gives him the highest pay? Express your answer to the nearest dollar.
Penny Nom lui répond.
Lita and Rose start jogging on a 110 m circular track 2009-01-13
Narcisa pose la question :
Lita and Rose start jogging on a 110 m circular track. They begin at the same point, but jog in opposite directions, lita at 8/3 meters per second and rose at 7/3 m per second. Find the number of times they they will pass each other during the first 15 minutes of jogging?
Robert Dawson lui répond.
A T-shirt fundraiser 2009-01-11
Andre pose la question :
Lou's class is selling T-shirts for a fundraiser. The supplier charges 750$ for the initial design and the set-up plus 5$ for each imprinted shirt. The students sell the shirts for 15$ each.
a)How many T-shirts do the students need to sell to break even?
b)How much profit will the students make if they sell 150 shirts?

Harley Weston lui répond.
Who am I? 2009-01-09
daphne pose la question :
im a 2-digit number less than 85.the sum of my digits is 9.the number in my ones place is twice my tens digit. who am i?
Robert Dawson and Harley Weston lui répond.
What day of the week will it be? 2009-01-09
dan pose la question :
suppose 3 days ago was a wednesday. what day of the week will 365 days from today be?
Robert Dawson lui répond.
Brothers and sisters 2009-01-09
Jade pose la question :
Pat, Joe, Dave,Yoly, Dolor and Alma are three brothers - and sister - pairs who play double tennis. Brother and sister ca not play in the same pair. Pat and Yoly play Dave and Dolor on one day. Dave and Yoly play Joe and Alma on another day. Name each brother - and sister pair, in any order.
Robert Dawson lui répond.
When is Sean's birthday? 2009-01-09
Robin pose la question :
Sean is 4 months older than Tony. Mia is 6 months younger than Tony. If Mia's birthday is in April when is Sean's?
Robert Dawson lui répond.
Eric bought 3 sweaters and 1 pair of pants 2009-01-01
maya pose la question :
eric bought 3 sweaters and 1 pair of pants. Each sweater cost d dollars and the pants cost 20 dollars. Eric spent a total of 95 dollars. The equation below can be used to determine the cost of each sweater. what is the answer?
Penny Nom lui répond.
Two rectangular plots have the same area 2008-12-23
Jason pose la question :
Two rectangular plots have the same area. The first has a perimeter of 40m while the second has a length 2m less than the first and a width 1m greater. Find the length and breadth of the first rectangle
Stephen La Rocque lui répond.
Quadratic equations arising from practical problems 2008-11-24
Lenval pose la question :
Why do quadratic equations arising from practical problems often give physically impossible solutions such as negative distances, negative times or, say, a polygon with a negative number of sides? For example: "A river in flood carries a tree t-squared - 23t metres downstream in t seconds. How long does it take for the tree to be carried 50 metres downstream?" This gives t=25 and t=-2. Please explain the second 'solution', which is not physically possible.
Chris Fisher and Victoria West lui répond.
Juanita and Jim each think of a number. 2008-11-18
Maria pose la question :
Juanita and Jim each think of a number. Juanita's number is 8 more than Jim's number. The product of the two numbers is 65. What is Jim's number?
Penny Nom lui répond.
Insulation in an attic 2008-11-18
Scott pose la question :
A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40-cm-wide rolls that are cut to fit between the rafters in the attic. If the roof is 6 m from peak to eave and the attic space is 2 m high at the peak, how long does each of the pieces of insulation need to be? Round to the nearest tenth.
Harley Weston lui répond.
A word problem about a regular pentagon 2008-11-16
Sandra pose la question :
If the area of a regular pentagon is A=1.720a^2, in which a is one of the sides. Find the area of a regular pentagon with a side that measures 50cm.
Chris Fisher and Penny Nom lui répond.
A game for 5 players 2008-11-16
safdar pose la question :
five players agreed that after every game, the loser doubles every body's money. they played 5 games and everybody lost once. after the 5 games, everybody had 4128. How much money did each of the players have before the game? show your work.
Janice Cotcher and Harley Weston lui répond.
This question needs to be thrown away 2008-11-13
ang pose la question :
I'm a friend trying to help a friend in lower algebra. I feel like this question needs to be thrown away. It's so ill written.
Find an mathematical expression/equation: Half of the quotient of the total of a number and negative six and a number less negative six is the ratio of a number to a number more than negative seventeen

Stephen La Rocque and Harley Weston lui répond.
Mary and Jane on a halfmile track 2008-11-10
alan pose la question :
mary is walking 15mph on a half mile track. jane is walking 12mph on a halfmile track. how much time will it take mary to pass jane.? HOW MANY TIMES WILL MARY PASS JANE IN 1 HOUR?
Chris Fisher and Penny Nom lui répond.
Supplementary angles 2008-11-10
Anna pose la question :
<A and <B are supplementary angles. Twice the measure of <B is one-fourth the measure of <A. Find the measure of both angles.
Penny Nom lui répond.
The dimensions of a rectangle 2008-11-07
laela pose la question :
A rectangle is 8 feet long and 6 feet wide.If the dimension is increased by the same number of feet,the area of the new rectangle formed is 32 square feet more than the area of the original rectangle.By how many feet was the each dimension increased?
Penny Nom lui répond.
Purchasing pens and pencils 2008-11-07
Maggie pose la question :
A mechanical pencil costs 50 cents and a pen costs 25 cents. If I spend 5.00 on 17 pens and pencils, how many of each does that buy?
Penny Nom lui répond.
A rectangle is twice as long as it is wide. 2008-11-04
Nawal pose la question :
A rectangle is twice as long as it is wide.
If both its dimensions are increased by 4 m, its area is increased by 88 m ^ 2.
Find the dimensions of the original rectangle.

Penny Nom lui répond.
Separating variables 2008-11-04
Terry pose la question :
by separating variables solve the initial value problem

(x+1)y' + y = 0 y(0) = 1

Harley Weston lui répond.
Three consecutive odd integers 2008-11-03
kim pose la question :
Determine three consecutive odd integers such that twice the sum of the second and third is 29 less than 5 times the first.
Penny Nom lui répond.
Nickels, dimes and quarters 2008-10-27
val pose la question :
I would like help working out a math word problem. A collection of 30 coins worth $5.50 consists of nickels, dimes, and quarters. There are twice as many dimes as nickels. How many quarters. Could you teach me how to find this formula?
Penny Nom lui répond.
Three congruent rectangles 2008-10-27
Meagan pose la question :
Here is my problem: Three congruent (non-square) rectangles are placed to form a larger rectangle. [Two are oriented the same way and the "stacked" while the third is rotated 90 degrees and placed next to the other two.] The total area is 1350 square cetimeters. Square ABCD is then created that has the same perimeter as the large rectangle that was created. E is the midpoint of line CD and F is the midpoint of BC. Find the area of triangle AEF.
Penny Nom lui répond.
The length of a rectangle is 6 inches less than 3 times its width. 2008-10-26
Angela pose la question :
The length of a rectangle is 6 inches less than 3 times its width. Find the dimensions of the rectangle if its area is 45 square inches.
Penny Nom lui répond.
The chairs on a ski lift 2008-10-21
Travis pose la question :
If you are sitting on chair 33 of a ski lift, which is a loop. Chairs are numbered consecutively, starting with 1. Chair 97 passes you halfway up the ski slope. How many chairs are on the lift?
Penny Nom lui répond.
How much does Luc pay for his tools?? 2008-10-20
imran pose la question :
Luc makes $1 profit on each tool he sells. Marc makes a $2 profit while paying $5 less for his tools than Luc. Marc thus makes $6 more profit for every $100 invested. How much does Luc pay for his tools??
Penny Nom lui répond.
Maximize revenue 2008-10-08
Donna pose la question :
A university is trying to determine what price to charge for football tickets. At a price of 6.oo/ticket it averages 70000 people per game. For every 1.oo increase in price, it loses 10000 people from the average attendance. Each person on average spends 1.5o on concessions. What ticket price should be charged in order to maximize revenue. price = 6+x, x is the number of increases.
ticket sales = 70000- 10000x
concession revenue 1.5(70000 - 10000x)
I just do not know what to do with the concession part of this equation (6+x) x (70000 - 10000x) I can understand but not the concession part please help. thx.

Penny Nom lui répond.
The break even point 2008-10-03
dina pose la question :
virgin record company has just signed a new artist to its label. They have pais the new group 25000 dollars to record their album and paid each band member 10000 dollars each. The band is not given a commission on each cd sold or downloaded, therefore, each cd sold is profit earned by virgin. How many cd's would they have to sell to break even if this new band has 5 members? Each cd is sold at the price of 20$.
Penny Nom lui répond.
A different approach to a word problem 2008-10-03
Kenneth pose la question :
Sarah's age is 2/3 of Mary's age and 3/4 of Ruth's age. The sum of their ages is 46 years. How old is each?
Penny Nom lui répond.
Find an All Odd 4 - Digit Number 2008-10-02
Denise pose la question :
a number has 4 different odd digits. the difference between the greatest digit and the least digit is 6, the number is greater than 2,000 and less than 3,160. what is the number?
Janice Cotcher lui répond.
Working together but one person starts first 2008-09-30
David pose la question :
Della can scrape the barnacles from a 70 ft. yacht in 10 hours using an electric barnacle scraper. Don can do the same job in 15 hours using a manual scraper. If Della started helping Don three hours after Don started scraping, how long will it take to scrape the entire boat?
Penny Nom lui répond.
What is the perimeter of the rectangle? 2008-09-27
Pauline pose la question :
A rectangle has an area of 27 squared inches. the height is 3 times the base What is the perimeter of the rectangle?
Penny Nom lui répond.
Working together 2008-09-22
Wade pose la question :
My daughter and I are having problems with this question: Maggie can mow the lawn in 6 hrs. If her sister, Julie, helps her, it only take 2 hrs. How long does it take Julie to mow the lawn alone.
Penny Nom lui répond.
Geometry with A Ladder Using Trig Functions 2008-09-20
Please pose la question :
A ladder makes an angle of 50 degrees with the ground. if the base of the ladder is 10 feet from the building, how high up the building does the ladder reach? i saw that someone else had a similar question, but we arn't using the pythagorean therom. we are using trig functions. Most of the problems we are doing is with the tangent. so this one probably is too.
Penny Nom lui répond.
A father and daughter problem 2008-09-19
Lamarr pose la question :
A father is four times as old as his daughter is now. In 20 years he will be only twice as old as his daughter. How old are the father and daughter now?
Penny Nom lui répond.
Concert tickets 2008-09-18
Keisha pose la question :
Gross Receipts. Six thousand tickets are to be sold for a concert, some for $9 and the rest for $15each. If x is the number of $9 tickets sold , write an algebraic expression that represents the gross receipts from ticket sales, assuming all tickets are sold. Simplify the expression.
Penny Nom lui répond.
The Width of a Mown Strip of Lawn 2008-09-15
Rimi pose la question :
USE FACTORING, QUAD FORMULA, AND COMPLETE THE SQUARE! Chris cuts half a rectangular lawn, 40m by 30m, by mowing strips of equal width around the perimeter. Jonah cuts the small rectangle left. How wide a strip does Chris cut so that they share the work equally?
Harley J Weston lui répond.
Pages in a Book 2008-09-08
Pandora pose la question :
Is there a easier way to explain to my child regarding "pages" problem - like when to add one? when to sub tract one? John read 46 pages in his new book. If he began reading at the top of page 33, on what page did he finish? and John needs to do 45 pages of problems in his workbook. He finished this assignment at the the bottom of page 99. On what gate did John begain? Thank you.
Walter Whiteley lui répond.
An array of tulip bulbs 2008-09-06
Mary pose la question :
My daughter had this problem on one of her tests. She forgot to ask her teacher what she did wrong. I understand she did not answer the question in full, but what she did answer I feel is right.

Please explain to me the correct answer. Thank you. Mary

Harley Weston lui répond.
Mowing a Lawn in Concentric Bands 2008-09-05
Mari pose la question :
two kids are mowing half of their backyard which is rectangular with dimensions 75 ft by 90 ft. The first kid starts mowing at a corner gradually working his way toward the middle by mowing concentric bands around the outside edges.If the mower cuts 3-ft wide path, at what point should the first kid stop and the second kid start mowing? THANKS!
Janice Cotcher lui répond.
A word problem with three numbers 2008-09-02
Wanda pose la question :
"Jabari is thinking of three numbers. The greatest number is twice as big as the least number. The middle number is three more than the least number. The sum of the three numbers is 75. Find the numbers."
Victoria West lui répond.
The saddle height on a bicycle 2008-08-31
David pose la question :
The saddle height on a bicycle should be 109% of the inside leg measurement of the rider (http://www.harriscyclery.com). If the saddle height is 37 in., then what is the inside leg measurement?

I don't know how to set up the equation if you can teach me how to set it up it would be great thanks

Harley Weston lui répond.
A fraction word problem 2008-08-29
Sylvia pose la question :
The denominator of a fraction is 1 less than 4 times the numerator. If the numerator is doubled and the denominator is increased by 6, the value of the resulting fraction is 2/5. Find the original fraction.
Penny Nom lui répond.
How old are Brett and Jenny ? 2008-08-28
Todd pose la question :
Brett and Jenny are each 10 years old. The sum of their ages is 11. Brett is 5 years older than Jenny. How old are they?
Janice Cotcher and Victiria West lui répond.
Abby has 45 coins 2008-08-28
Sonia pose la question :
Use an algebraic approach to solve the problem. Abby has 45 coins, consisting only of dimes and quarters, worth $6.6. How many dimes and how many quarters does she have?
Penny Nom and Victoria West lui répond.
A triangular field 2008-08-15
joneka pose la question :
Barb walked five times aroun a triangle field all together she walked 435 feet the first side of the triangle fiel is 23 feet the length of the other two sides are of the same measure. What are the dimensions of the triangle field?
Penny Nom lui répond.
Two problems involving reciprocals 2008-08-10
Dee pose la question :
I have a few questions that im have trouble working out...

1. One number is three times another number; if each is increased by 1 the sum of the reciprocals is 10/21. Find the numbers

2.A tank can be filled by 2 pipes together in 6 hours; if the larger pipe alone takes 5 hours less than the smaller to fill the tank, find the time in which each pipe alone would fill the tank

Penny Nom lui répond.
Cost of pencil is rising every year since 7 years ago 2008-08-06
Mari pose la question :
Cost of pencil is rising every year since 7 years ago. If the cost of pencil last year was 60 cents which is the sum of the cost from the last two previous years, what is the cost of the pencil now, the cost seven years ago.
Penny Nom lui répond.
The product of the digits of a four digit number 2008-07-26
Pete pose la question :
I am a student preparing for a competition and this was one of the prep problems: The product of the digits of a four digit number is 6x5x4x3x2x1. how many such numbers are there with this property?
Stephen La Rocque lui répond.
Three consecutive positive integers 2008-07-20
AC pose la question :
find three consecutive positive integers such that the product of the first and third, minus the second, is 1 more than 4 times the third
Penny Nom lui répond.
Two numbers whose sum is 25 and whose product is 120 2008-07-10
Michelle pose la question :
Solve the following problem in at least two different ways.
Find two numbers whose sum is 25 and whose product is 120.

I know how to solve this problem by creating two equations x+y=25 and xy=120 and then use substitution.

Are there any different ways of solving this problem?

Janice Cotcher and Penny Nom lui répond.
Two trains 2008-07-07
Elisha pose la question :
Trains at each end of the 50. km long Eurotunnel under the English Channel start at the same time into the tunnel. Find their speeds if the train from France travels 8. km/h faster than the train from England and they pass in 17 minutes.
Janice Cotcher and Penny Nom lui répond.
How many handshakes take place? 2008-06-26
Peter pose la question :
Eight people of different heights are at a party. Each person decides to only shake hands with people shorter than him/herself. How many handshakes take place? My math book says it is 0. Is it wrong? If so, what is the answer?
Harley Weston lui répond.
What is the number of miles traveled by each tire? 2008-06-26
Peter pose la question :
A car is driven 40,000 miles using four tires and a spare tire. The tires are rotated so that each tire travels the same number of miles. What is the number of miles traveled by each tire?
Penny Nom lui répond.
Four fours 2008-06-25
jen pose la question :
Use four 4's and some of the symbols: +,-,X, / and (), to give expressions for the whole numbers from 0 through9. Example : (4X4+4)/4=5
Janice Cotcher lui répond.
An 18,000 mile automobile trip 2008-06-23
rachel pose la question :
two men were about to start on an 18,000 mile automobile trip. The tires on their car were each good for 12,000 miles but not a foot more. how many spares will they need to go 18,000 miles
Stephen La Rocque lui répond.
I will be x years old in the year x squared 2008-06-22
rachel pose la question :
you probably know someone who will x years old in the year x squared. When was that person born?
ha lui répond.
All wiffs are miffs and all miffs are kiffs. 2008-06-08
Allison pose la question :
All wiffs are miffs. all miffs are kiffs. There are 25 wiffs. There are 76 kiffs. 33 kiffs are not miffs. How many miffs are not wiffs?
Penny Nom lui répond.
Tyres in a shipping container 2008-05-14
Carlene pose la question :
I need to work out how many tyres will go in a shipping container. The shipping container is 10 foot long, 8 foot wide and 8.6 foot high. The tyre is 175 millimeters across and it is 14 inches in tyre thickness. How many tyres will fit in my container?
Stephen La Rocque lui répond.
How old are the sisters? 2008-05-11
George pose la question :
Theresa is four years older than her younger sister Joni. Twelve years ago, she was twice as old as her sister. Find the present age of the two siblings.
Penny Nom lui répond.
Fencing a triangular field 2008-04-29
Julieta pose la question :
The area of a field shaped like a triangle is 750yards squared. One leg of the field is fenced with wood costing $5/yd. The remainder of the perimeter of the field is fenced with steel costing $10/yd. The perimeter of the field is 150yards. the total cost of the fencing is $1200.
a. What is the length of the leg fenced with wood?
b. what is the length of the leg fenced with steel?

Penny Nom lui répond.
How many candles are on dave's birthhday cake? 2008-04-23
karen pose la question :
on daves birthday, his brother henry is 17 years younger than 3 times dave's age,. the boys father ,tim is 17 years older than twice henry's age if dave is 7 years younger than his brother. how many candles are on dave's birthday cake?
Chris Langdon and Stephen La Rocque lui répond.
The sum of the ages of Petra and her mother is 45 2008-04-20
Wendy pose la question :
The sum of the ages of Petra and her mother is 45. Her mother is 12 years more than twice as old as Petra. How old are Petra and her mother?
Leeanne Boehm lui répond.
A water alcohol mixture 2008-04-20
Mary pose la question :
How many oz. of solution that is 90% alcohol ( and 10% water) is needed to be mixed with 5 ounces of a solution that is 50% alcohol in order to obtain a solution that is 80% alcohol?
Penny Nom lui répond.
The dimensions of a rectangle 2008-04-20
Brandy pose la question :
Find the dimensions of a rectangle with a primeter of 54 cm if the length is 5 less than three times the width.
Penny Nom lui répond.
A square garden of tulips 2008-04-08
Vincent pose la question :
Each year Brandon plants tulip bulbs in a square flower bed. This year Brandon's flower bed has 29 more bulbs than it had last year. If the flower bed is still square how many tulip bulbs are in it this year?
Penny Nom lui répond.
How much do the pumpkins weigh? 2008-04-05
Jose pose la question :
Mr. Appleberry brought in pumpkins for science class, one for each group. The fist task wa to weigh the pumpkins, but the scales they had wouldn't register any weight under 7 pounds, and it seemed that two ot three pumpkins were under that weight. The class decided that they could weigh the pumpkins two at a time, so they weighed each pumpkin with each of other pumpkins.

The weights registered on the scale were:

7 pounds
8 pounds
9 pounds
10 pounds
11 pounds
12 pounds

How many pumpkins were there, and how much did each weigh?

Penny Nom lui répond.
How far is she from her starting point? 2008-03-30
Nancy pose la question :
A child runs due east for 23.5m and then she runs 10.5m due south. How far is she from her starting point?
Stephen La Rocque lui répond.
A word problem about numbers 2008-03-24
kathy pose la question :
five times a number minus a second number is 6. The sum of the numbers is 12. find the numbers
Penny Nom lui répond.
A word problem about a triangle 2008-03-23
kathy pose la question :
The measure of the largest angle of a triangle is twice the measure of the second largest. The measure of the second largest is 20 degrees more than the measure of the smallest. Find the measure of each angle.
Melanie Tyrer lui répond.
A pen with 40 post on each side 2008-03-18
Manpreet pose la question :
how many post do you need to make a pen with 40 post on each side
Penny Nom lui répond.
Find the present age of the two siblings 2008-03-11
jessica pose la question :
Theresa is four years older than her younger sister Joni. Twelve years ago, she was twice as old as her sister . Find the present age of the two siblings.
Stephen La Rocque lui répond.
Average speed up and down a hill 2008-03-09
Judith pose la question :
An old broken-down ar has to travel a two miles route, up and down a hill. Because it is so old, the car travels the first mile - the ascent - at an average speed of fifteen miles per hour. How fast must it cover the second mile - the decent - to achieve an average speed of thirty miles per hours? (There is a missing variable, but what is it?)
Penny Nom lui répond.
One number is four less than five times another number 2008-03-05
alice pose la question :
One number is four less than, five times another number. The total of the two numbers is 50. What are the two numbers?
Penny Nom lui répond.
A puzzle about hats 2008-03-03
Sylvia pose la question :
There were 4 people sitting in a row, truing to win $50.00 from a riddle.

The one in front was wearing a red hat. The second from the front was wearing a blue hat. The third from the front was wearing a red hat. The last was wearing a blue hat and is blind-folded.

Each of them were informed that they are all wearing a hat, the last person is blind-folded and that there are 2 red and 2 blue hats. If they can guess the colour of their hat, then they win the prize.

There was a long silence, then one of them guessed the color of his hat correctly. Who was it? and explain why.

(note that they can only see the person in front of them and are not allowed to turn around and see behind them.)

Penny Nom lui répond.
Time and a half 2008-03-01
Travis pose la question :
Bill receives time and a half for working overtime. If Bill is paid $55 for each hour of overtime, how much is his regular hourly wage?
Stephen La Rocque lui répond.
TV watchers on Thursday and Saturday 2008-02-28
flor pose la question :
Thursday is the most watched night on television with 20 million more viewers than Saturday. the total for both nights is 102 million. how many viewers watch on each of these nights?
Penny Nom lui répond.
3 consecutive odd integers 2008-02-28
Pat pose la question :
For 3 consecutive odd integers, twice the first integer, plus 5 more than the second integer, plus three less than four times the third integer equals -85. Find the 3 consecutive odd integers.
Penny Nom lui répond.
A triangle problem 2008-02-28
Jessica pose la question :
Triangle ABC Angle C is 3 times angle A angle B is 30 degrees less than angle C what are the measurements of the angles I have the measurements and I have the Equation but I can't figure out quite how to solve it the proper way
Stephen La Rocque lui répond.
Peg has 12 more cases to unload than Mike 2008-02-20
brianda pose la question :
Peg has 12 more cases to unload than Mike. They have a total of 150 cases to unload. How my cases does each have to unload?
Penny Nom lui répond.
I am a 4-digit number 2008-02-12
Nickie pose la question :
I am a 4-digit number with no repeating digits. I am divisible by 5, my first two digits (left to right) make a number divisible by 3, and my first three digits make a number divisible by 4. Also, my digits have a sum of 19 and I have the digit 7 in the thousands place. Who am I?
Penny Nom lui répond.
The angles in a parallelogram 2008-02-11
lauren pose la question :
if the sum of the measures are 360 in a parallelogram. a and d are same measures, c and b are same too. If c is twice the measure of a what are all the angles?
Penny Nom lui répond.
A square and an equilateral triangle 2008-02-10
Emily pose la question :
A square pen and a pen shaped like an equilateral triangle have equal perimeters. Find the length of the sides of each pen if the sides of the triangular pen are fifteen less than twice a side of the square pen.
Stephen La Rocque lui répond.
A 24 hour clock 2008-01-31
CARLA pose la question :
at a certain time i looked at a 24-hour digital clock and noticed some things about the time. (1 The number in the hours section plus the number in the minutes section makes 60.(2 One of the digits in the minutes section is the square root of the other digit in the minutes section.(3 The sum of the digits in the minutes section is the number in the hours section reversed. what is the time?
Penny Nom lui répond.
A car goes 15 miles on a gallon of gas 2008-01-26
Raven pose la question :
A car goes 15 miles on a gallon of gas when it goes 50mph. When the car is driven 60mph it only goes 80% as far. How far will it travel on a gallon of gas at 60mph? I solved this two ways: 15 * .80 = 12 It goes only 12 miles or x/60 = 15/50 which is x = 12

This answer in the book is 4/5 * 15 = x. Then x = 12 How did they come up with 4/5?

Penny Nom lui répond.
Three consecutive odd integers 2008-01-24
daniel pose la question :
find three consecutive odd integers such that three times the second minus the third is 11 more than the first. help! i have x+1, x+3, x+5 as my 3 odd integers is this correct its been a while.
Penny Nom lui répond.
A toad climbs the stairs 2008-01-22
Kate pose la question :
The question is: A small toad is sitting at the bottom of the stairs. He wants to get to the 10th step, but is having some difficulty. He jumps up 2 steps and then back 1 each time. How many jumps will he take to reach the 10th step?
Stephen La Rocque and Penny Nom lui répond.
A word problem 2008-01-18
Marouf pose la question :
How can you make a word problem for 6 2/3 and solve the word problem? I'm having trouble. Please help
Stephen La Rocque lui répond.
Two bikers race on a circular track 2008-01-17
Abby pose la question :
Two bikers race on a circular track. Biker A can circle the track in 8 minutes, and Biker B can circle the track in 6 minutes. From the start of the race, how many minutes will it be before Biker B overtakes Biker A?
Stephen La Rocque and Penny Nom lui répond.
8 workers dug 3/8 of a tunnel in 10 days 2008-01-15
Marc pose la question :
8 workers dug 3/8 of a tunnel in 10 days. If the need to finish the remaining 5/8 of the tunnel in 3 1/3 days, how many more workers must they hire?
Penny Nom lui répond.
Two rectangles 2008-01-15
Paul pose la question :
If the smaller dimension of a rectangle is increased by 3 feet and the larger dimension by 5 feet, one dimension becomes 3/5 of the other, and the area is increased by 135 square feet. find the original dimensions
Penny Nom lui répond.
The sum of two numbers is 36 2008-01-14
May pose la question :
The sum of two numbers is 36.
Their product is 320.
What are the two numbers?

Penny Nom lui répond.
What year were the girls born in? 2008-01-06
Nyra pose la question :
Christmas 2004 was over and three teenagers were looking forward to their birthdays. Eric's was in February and Lisa's and Tammy's in January. Tammy is 8 weeks older than Eric, but 3 days younger than Lisa. What year were the girls born in?
Claude Tardif lui répond.
A rectangle is three times as long as it is wide. 2007-12-31
Robert pose la question :
A rectangle is three times as long as it is wide. If the length is decreased by 2 cm and the width is increased by 3 cm, the new rectangle has an area of 42 cm. What are the dimensions of the original rectangle?
Penny Nom lui répond.
Sally, Charlie and Snoopy in a race 2007-12-29
Marie pose la question :
Sally and Charlie are having a race. Charlie gets a 900 foot lead and runs 8 inches per second. Sally begins at the starting line and runs at a rate of 5 ft per second. Charlie's dog is also in the race. Snoopy starts 1100 feet ahead of Sally and runs toward the starting line at a rate of 1 foot per second.

When will Charlie and Snoopy past each other and how far will they be from the starting line?

Penny Nom lui répond.
Three workers working together 2007-12-18
Rajesh pose la question :
Worker A can do a piece of work in 15 days, worker B in 12 days, and worker C in 10 days. Worker A works 2 days, worker B 3 days, and worker C 3 days. In what time can worker A and worker B finish the job by working together?
Penny Nom lui répond.
How many houses must they paint? 2007-12-12
Natalie pose la question :
The question is: Four boys work together,painting houses for the summer.For each house they paint they get 256 pounds. If they work for four months of the summer and their expenses are 152 pounds per a month, how many houses must they paint for each of them to have one thousand pounds at the end of the summer?
Penny Nom lui répond.
Find the perimeter of the original rectangle. 2007-12-11
Hannah pose la question :
The area of a rectangle is 360 square meters. If the rectangle's length is increased by 10 meters and the width is decreased by 6 meters, its area does not change. Find the perimeter of the original rectangle.
Melanie Tyrer lui répond.
Delivering microwave ovens 2007-12-02
Barbara pose la question :
Fernando and Kevin are delivering microwave ovens to a local appliance store, whose freight elevator can hold no more than 900 pounds. If Fernando weighs 180 pounds, Kevin weighs 240 pounds, and the microwave ovens weigh 30 pounds each, how many microwaves can Fernando and Kevin deliver at one time if they must ride in the elevator as well?
Stephen La Rocque lui répond.
Elimination of mayan prisoners 2007-11-19
Jim pose la question :
An evil Mayan emperor decides to make an example of 1,000 prisoners. He stands them in a circle with numbers one to a thousand marked on their shirts. He then starts counting: "one in, two, in three out" The third man is immediately executed. This continues round and round and round the circle. While the number in the circle shrinks, every third prisoner is pushed out and executed. And it continues even when there are only two prisoners left alive. What number is on the last prisoner's shirt?
Victoria West lui répond.
Red balls and blue balls 2007-11-18
Md pose la question :
In a group of 15, 7 have Red Balls, 8 have Blue Balls and 3 have neither. What fraction of the group has both Red Balls and Blue Balls?
Stephen La Rocque lui répond.
Red hens and white hens 2007-11-18
Rapin pose la question :
In 15 days, 4 white hens and 3 red hens lay eggs equal to 3 white hens and 5 red hens lay eggs in 12 days , how many days that white hens can lay eggs the same amount as red hens lay eggs in 20 days ?
Steve La Rocque and Penny Nom lui répond.
A quadratic function word problem 2007-11-12
liz pose la question :
A kernal of popcorn contains water that expands when the kernal is heated, causing it to pop. The equations below give the "popping volume"y(in cubic centimeters per gram) of popcorn with moisture content x(as a percent of the popcorn's weight).

hot air popping: y = -0.761x^2 + 21.4x-94.8
hot oil popping: y = -0.652x^2 + 17.7x -76.0

A) for hot air popping, what moisture content maximizes popping volume? What is the maximum volume?
B) For hot oil popping, what mositure content maximizes popping volume? What is the maximum volume?
C) the moisture content of popcorn tyipcally ranges from 8% to 18%. Graph the equations for hot air and hot oil popping on the interval 8 less then or equal to x and less then or equal to 18.
D) Based on the graphs from part(c), what general statement can you make about the volume of popcorn produced from hot air popping verus hot oil popping for any moisture content in the interval8 less then or equal to x and less then or equal to 18.

Penny Nom lui répond.
I have 23.50 in quarters and dimes 2007-11-09
hannah pose la question :
i have 23.50 in quarters and dimes. if i have 15 more dimes than two times the amount of quarters i have, how many coins do i have total?
Penny Nom lui répond.
A rectangular-shaped bedroom 2007-11-08
Svitlana pose la question :
Professor Reissig is doing renovations on one of the rectangular-shaped bedrooms in his house. He is putting up a border around the room. The room’s length is seven feet more than two-thirds of its width. The area of this bedroom is one hundred eighty square feet. If the border costs $1.25 per six inches, what is the minimum cost for the border?
Penny Nom lui répond.
Chris has twice as many $1 bills as pennies 2007-11-02
vicky pose la question :
Chris has twice as many $1 bills as pennies, twice as many dimes as he has $10 bills, and twice as many pennies as he has dimes. How much money does he have?
Penny Nom lui répond.
The length of a rectangle is twice the width 2007-10-26
Tami pose la question :
The length of a rectangle is twice the width. The number of square units in it's arear is four times the number of units in it's perimeter. What are the dimensions of the rectangle?
Penny Nom lui répond.
The dimensions of a rectangle 2007-10-14
Elizabeth pose la question :
The perimeter of a rectangle is 20m. The area is 20sqm. Calculate the dimensions of the rectangle. Give your answers correct to two decimal places.
Penny Nom lui répond.
Nickels, dimes and pennies 2007-10-14
tom pose la question :
you have $1.00 and 1/5 of it is dimes, 2/15 is nickels, and 2/3 is pennies. How many coins of each are there. how do i set it up to solve this problem. thanks, tom
Penny Nom lui répond.
How many students attended the get-together? 2007-10-11
Diane pose la question :
Some students planned for a get-together. The budget for food was $500. Five of the students failed to come because of the distance and therefore the cost of food for each member increased by $5. How many students attended the get-together?
Stephen La Rocque lui répond.
Problems solved using quadratic equations 2007-10-07
Lisa pose la question :
a. Two positive numbers differ by 5. Their product is 234. What are the two numbers? b. The sum of two numbers is 12. Their product is 30. What are the two numbers? c.Two numbers differ by 5. Their squares differ by 55. What are the two numbers? d. The sum of two numbers is 15. Their product is 56. By forming an equation, find the two numbers.
Penny Nom lui répond.
Working together 2007-09-21
farah pose la question :
A can do a piece of work in 10 days while B can do the same work in 15 days . They work together for 5 days and the rest of the work is done by C in 2 days . If they get 400$ for the whole work , what should be A's share.
Harley Weston lui répond.
A word problem 2007-09-17
Martin pose la question :
One more than the difference between 18 and seven times a number is -9
Stephen La Rocque lui répond.
Taping the gym floor 2007-09-17
Marina pose la question :
You are helping the coach tape lines on the gym floor to divide the length of the gym into 8 lanes of the same size. If it takes one minute to tape a line,how long will it take to do the job. State the strategy /strategies you used and why?
Penny Nom lui répond.
How many vertices are there? 2007-09-10
Makayla pose la question :
I've just started the 4th grade and I am having trouble with a question on my homework. The questions is: Carrie is arranging sticks to make shapes. she has made a closed figure, with 10 sides How many vertices are there? I believe the answer is ten but I'm not sure.
Stephen La Rocque and Walter Whiteley lui répond.
How many stairs in the flight are stepped on exactly once? 2007-09-03
Bill pose la question :
Four friends are racing together down a long flight of stairs. A goes 2 steps at a time, B 3 at a time, C 4 at atime and D 5 and at a time. The only steps on which all four tread are the top one and the bottom one. How many stairs in the flight are stepped on exactly once.
Harley Weston lui répond.
A word problem 2007-08-31
Regian pose la question :
How can I write a word problem for the following numerical expression 3 (4+3)+2 And then how do I simplify the expression
Penny Nom lui répond.
What are the two numbers? 2007-08-13
Tiffany pose la question :
The sum of two number is 29.The difference is 1. What are the two numbers?
Stephen La Rocque, Melanie Tyrer and Penny Nom lui répond.
At what speed does Chuck travel? 2007-07-27
Jessica pose la question :
Chuck and Dana agree to meet in Chicage for the weekend. Chuck travels 224 miles in the same time that Dana travels 204 miles. If Chuck's rate of travel is 5 mph more than Dana's, and they travel the same length of time, at what speed does Chuck travel?
Harley Weston lui répond.
What are the dimensions of the field? 2007-07-23
Debourah pose la question :
a soccer field is 1080 square meters the width is 2 meters less than one-third the length. What are the dimensions of the field?
Penny Nom lui répond.
A square and an equilateral triangle have the same perimeter. 2007-07-02
eve pose la question :
I am trying to help my daughter with the following problem: A square and an equilateral triangle have the same perimeter. The sum of one side of the square and one side of the triangle equals 28 cm. Find the sides of the figures.
Penny Nom lui répond.
A ten- foot long board is cut into three pieces 2007-06-12
Cynthia pose la question :
How do I solve this problem?

A ten- foot long board is cut into three pieces. The second piece is half as long as the first. The third piece is 4 1/2 longer than the second. How long is the first?

Penny Nom lui répond.
What is the total weight of the fish? 2007-06-08
Mike pose la question :
The tail of a fish weighs 9 oz. The head weighs as much as the tail and half of the body. The body weighs as much as the head and tail combined. What is the total weight of the fish?
Stephen La Rocque lui répond.
Optimization - carrying a pipe 2007-05-05
A student pose la question :
A steel pipe is taken to a 9ft wide corridor. At the end of the corridor there is a 90° turn, to a 6ft wide corridor. How long is the longest pipe than can be turned in this corner?
Stephen La Rocque lui répond.
The sum of the ages of petra and her mother is 51 2007-05-05
Natakie pose la question :
the sum of the ages of petra and her mother is 51. Her mother is 12 years more than twice as old as petra. how old are petra and her mother.
Stephen La Rocque lui répond.
Comparing two pay scales 2007-05-03
san pose la question :
Mable is offered a job selling magazine subscriptions. She has the choice of two pay scales. Pay scale 1:
She can be paid $0.65 for each subscription she sells.
Pay scale 2:
She can be paid $0.10 for the first subscription, with the wage gong up $0.05 more for each subscription after the first.
For her first sale she would make $0.10, for her second sale she would make $0.15, for her third sale she would make $0.20, and so on.
Please compare and analyze the two scales. Which scale is better?

Penny Nom lui répond.
A cylinder inside a sphere 2007-04-25
Louise pose la question :
i need to find the maximum volume of a cylinder that can fit inside a sphere of diamter 16cm
Penny Nom lui répond.
A corny problem 2007-04-21
Robby pose la question :
My name is Robby and I need help with a problem. I have found at least 4 correct answers, but I can't figure out how I got the answer or if there is a formula that I can use. I got my answers by trial and error. Problem: One hundred bushels of corn are to be divided among 100 men, women, and children. Men get 3 bushels each. Women get two bushels each. Children get 1/2 bushel each. How can the bushels be distributed with no leftovers? Is there more than one solution? So far, I have 4 answers: 8 men,20 women, and 72 children, 2 men, 30 women, and 68 children, 5 men, 25 women, and 70 children, and 11 men, l5 women, and 74 children. I need to know if there is a formula to use, or if it's just trial and error, or if a pattern is involved.
Stephen La Rocque and Penny Nom lui répond.
By how many feet was each dimension increased? 2007-04-18
Becca pose la question :
A rectangle is 8 feet long and 6 feet wide. If each dimension is increased by the same number of feet, the area off the new rectangle formed is 32 square feet more than the area of the original rectangle. By how many feet was each dimension increased? I need a diagram and 5 or more sentences for an explanation. Thanks!
Stephen La Rocque lui répond.
One number is 12 more than another. 2007-04-14
Devon pose la question :
One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number.
Penny Nom lui répond.
Word problems 2007-04-13
Perla pose la question :
1.A school district is proposing a 5% increase in the numbber of days in a school year. How long would a school year be with the proposed increase?

2. Keikio spent the day bird watching and counted 34 more birds in the morning than in the afternoon. If she counted a total of 76 birds, how many birds did she count in the afternoon?

Penny Nom lui répond.
Word problems 2007-04-09
Danielle pose la question :
I am teaching a student who cannot understand which operation to use when doing word problems. I have tried a number of different ways to show him...any suggestions?
Haley Ess lui répond.
How far apart are the cars? 2007-04-07
ian pose la question :
2 cars set off in opposite directions and travel for 6 miles, they both take a left turn, and travel for a further 8 miles........... how far apart are the cars???

a) 10 miles
b) 22 miles
c) 20 miles
d) 18 miles

Penny Nom lui répond.
Inscribed square in inscribed circle 2007-03-25
Confuzzled pose la question :
"The largest possible circle is drawn inside a square. Then the largest possible square is drawn inside this circle. What is the area of the inner square as a fraction of the area of the outer square?"
This is a question from the Grade 8 Gauss contest and I don't know how to work it out without drawing it. My teacher says it's possible but I still don't get it. Please help!!!

Stephen La Rocque lui répond.
Nickels, dimes and quarters 2007-03-18
Alexandra pose la question :
Ellen has two more nickels than dimes and three more quarters than nickels. She has $3.35 in all. How many coins of each type does she have?
Penny Nom lui répond.
Two busses 2007-03-15
Devon pose la question :
A bus leaves a station at 1 p.m., traveling west at an average rate of 44 mi/h. One hour later a second bus leaves the same station, traveling east at a rate of 48 mi/h. At what time will the two buses be 274 mi apart?
Steve La Rocque and Penny Nom lui répond.
Who won the backstroke? 2007-02-26
Timothy pose la question :
Three girls held a series of swimming races among themselves. They decided to award a positive whole number of points for finishing first, second and third, where the number of points for first was more than the number for second, which was more than the number for third. The same number of points was awarded for the place in each race. There were no ties.

The first race was breaststroke. Altogether Sarah accumulated 20 points, Michelle 10 points and Catherine 9 points. If Sarah did not win the backstroke race, who did win the backstroke?

Penny Nom lui répond.
How old are they now? 2007-02-26
Ali pose la question :
Please help us. My daughter can't get this answer. The sum of Louise's age and Todd's age is 34. 5 years ago the sum of twice Louise's age and 3 times Todd's age was 61. How old are they now?
Haley Ess and Steve La Rocque lui répond.
Alligation 2007-02-09
Shanah pose la question :
Orders: 360 mL of 75% acetic acid Stock: 99% acetic acid and distilled water Find the volume of acetic acid and distilled water to get the needed concentration. Any help with this is greatly appreciated, Thanks
Stephen La Rocque lui répond.
Dividing money unequally 2007-02-06
Linda pose la question :
I have a total of $13,826.48. It is to be divided by 15 kids - 2 of the kids only get half of what the other 13 do - how much do the 13 get and how much does the 2 get? Thanks
Haley Ess and Steve La Rocque lui répond.
More on a man and his wife on an escalator 2007-02-02
Patrick pose la question :
Hello, I was helping my son with a homework problem and came across a very similar on your site:

http://mathcentral.uregina.ca/QQ/database/QQ.09.01/monty1.html

We are trying to understand the answer shown. There seems to be leap, in the answer that isn't explained or we can't see it. Specifically in the answer it says:

"We know that the woman olny walks 21 steps to reach the top, and thus in the time she walks 7 more steps the escalator also goes up 7 steps. Hence the woman and the escalator are travelling at the same rate."

We understand that she still has 7 steps left, but how is it that you can conclude from that (or other factors) that during those 7 steps the escalator will also travel 7 steps.

Thanks in advance for any help you can offer. Pat

Stephen La Rocque lui répond.
Fencing a field 2007-02-01
Carol pose la question :
"The area of a rectangular field is 1200m^2. Two parallel sides are fenced with aluminum at $20/m. The remaining two sides are fenced with steel at $10/m. The total cost of the fencing is $2200." What is the length of each side fenced with aluminum and steel?
Stephen La Rocque lui répond.
A right triangle 2007-01-29
Tayler pose la question :
One leg of a right triangle is 8 cm. less than the hypotenuse while the other leg is 1 cm. less than the hypotenuse. Find the length of the hypotenuse.
Penny Nom lui répond.
The sum of the digits of a two-digit number is 13. 2007-01-27
Liz pose la question :
The sum of the digits of a two-digit number is 13. If the digits are reversed, the new number is 9 more than the original number. Find the original number.
Penny Nom lui répond.
A word problem 2007-01-05
Harold pose la question :
the sum of one number plus four less than five times another is 26.
Penny Nom lui répond.
The average of 3 tests 2006-12-12
Charles pose la question :
If you average 84 on first three test and the first score was 67. The second score was 7 less than the third score. What was the score on the second and third test.
Stephen La Rocque lui répond.
A Norman window 2006-11-30
Joe pose la question :
a norman window is a rectangle with a semicircle on top. If a norman window has a perimeter of 28, what must the dimensions be to find the maximum possible area the window can have?
Stephen La Rocque lui répond.
Two trains left the station at the same time and traveled in opposite directions. 2006-11-18
Tori pose la question :
Two trains left the station at the same time and traveled in opposite directions. The E train averaged 130 km/h. The A train's speed was 110 km/h. In how many hours were they 480 km apart?
Stephen La Rocque lui répond.
Apples and plums 2006-11-13
Saif pose la question :
the problem i am stuck with is, nicole buys 2.3kg apples 1.8kg plums she pays £7.18 total plums cost £2.20per kg cost 1kg apples what is the cost of 1kg of apples
Stephen La Rocque lui répond.
After how many hours will the class have been notified? 2006-11-10
Brittany pose la question :
A college math class consists of 32 students. On Monday at 9:00 a.m., the teacher tells one student to notify other students that the test scheduled for Wednesday at 9:00 a.m. has been cancelled. The model for the number of students in the class who will have heard this information after t hours is N=32-32e^-0.02t. After how many hours will the class have been notified?
Stephen La Rocque lui répond.
A mixture problem 2006-11-05
Lynne Rae pose la question :
How many kg of 30% salt solution by mass and 40% salt solution by mass should be mixed to form 200kg of 37% salt solution by mass?
Penny Nom lui répond.
Bill has four more dimes than nickels ... 2006-11-05
Allison pose la question :
bill has four more dimes than nickels, and seven fewer nickels than pennies.he has a total of $3.35. how many of each kind of coin has he?
Karen McIver lui répond.
The sum of two numbers is 30 2006-11-03
GG pose la question :
The sum of two numbers is 30 and the product of the same two numbers is 221. Find the two numbers.
Stephen La Rocque lui répond.
Paddeling on the Alleman River 2006-10-31
Anita pose la question :
Len is planning a three-hour trip down the Alleman River and back to his starting point. He knows that he can paddle in still water at 3 mph and that the rate of the current is 2 mph. How much time can he spend going downstream? How far downstream can he travel?
Penny Nom lui répond.
How much labor should the firm employ? 2006-10-28
Christy pose la question :
A dressmaking firm has a production function of Q=L-L(squared)/800. Q is the number of dresses per week and L is the number of labor hours per week. Additional cost of hiring an extra hour of labor is $20. The fixed selling price is P=$40. How much labor should the firm employ? What is the resulting output and profit? I am having a difficult time with this, HELP!
Stephen La Rocque lui répond.
Ridingcap's daughter 2006-10-23
Marcus pose la question :
Ridingcap's daughter,whose real name was Coleen, set out for grandma's house again. This time she was delivering jam and jellies. First she stopped to see Mrs. Parsley,who took in grandma's mail while grandma was @ the hospital recovering from the wolf. Colleen gave Mrs. Parsley one third of the jars in her basket. Then Colleen set out again,and suddenly the wolf jumped out behind the bush and grubbed one half of the jars in Colleen's basket. When the wolf ran off, Colleen went on and gave Mr .Woodsman two thirds of what was left in her basket. Colleen had six jars of jam and jellies left for grandma. HOW MANY JARS DID COLLEEN LEAVE HOME WITH
Stephen La Rocque lui répond.
Word equations 2006-10-22
Samira pose la question :
One half of a number is subtracted from the sum of one-third and one-quarter of the same number. If the result is 16, find the number.
Stephen La Rocque lui répond.
Word problem 2006-10-22
Sabrina pose la question :
Thomas bought a badminton racquet and paid for it in quarters. If Thomas had used nickels and dimes, he would have needed 20 more dimes than quarters and one more than twice as many nickels as quarters. How much much did the badminton racquet cost?
Stephen La Rocque lui répond.
Two word problems 2006-10-02
Eve pose la question :

1. A surveyor's map shows a plan for the rectangular rose garden whose area is
a2+25ab-350b2. Find an algebraic expression for the length and width. If a=20 ft and b=10 feet, find the actual dimensions of the garden.

2.A square is enclosed in a circle. The area of the square is (4r2-32r+64)sq cm and the area of the circle is 484r2 sq cm. Write a polynomial in factored form to represent the difference of the two areas.


Stephen La Rocque lui répond.
How long will it be before the two snails meet? 2006-09-21
Brett pose la question :
Two snails are 8.5 feet apart. They start to crawl toward each other at the same time. One of them travels at the speed of 6 in. per minute, while the other zips along at 11 inches per minute. How long will it be before the two snails meet?
Penny Nom lui répond.
How much did I spend on the first trip? 2006-09-10
Alexander pose la question :
I have $600 to spend.
I take 10 shopping trips.
Each trip I spend $10 more than the last trip.

How much did I spend on the first trip?
Stephen La Rocque lui répond.

A triangle problem 2006-08-06
A student pose la question :
A triangle is such that its medium side is twice as long as its shortest side, and its longest side is three times as long as its shortest side. The perimeter of the triangle is 54 yards. What are the lengths of the three sides?
Penny Nom lui répond.
Some word problems 2006-06-30
Oliver pose la question :

Question: I am a father of a 10 years old boy and sending this question from Bangkok, Thailand. I need solutions for the following:

1
Joseph and Peter spent $45 altogether.
Joseph and Harold spent $65 altogether.
If Harold spent 3 times as much as Peter, how much did Joseph spent?

I know the answer is $35 but do not know how to get to it.

2
.
.
.


Penny Nom lui répond.
A jar contains 36.25$ 2006-06-12
Brunia pose la question :
A jar contains 36.25$ in pieces of 0.10 and of 0.25$. If it there has 250 change pieces in all, how much there he has pieces of 0.25$ in the jar.
Penny Nom lui répond.
Tiling a floor 2006-06-08
Marguerite pose la question :
A builder is adding a 20' X 28' addition to a house. He has two choices: he can use 8" X 8" tile @ $.98 a tile or 12" X 12" tile @ $1.98 a tile. How much money would he save by using the least expensive choice?
Stephen La Rocque and Penny Nom lui répond.
Three purses 2006-05-22
Marcee pose la question :
If you take $20 from the first and put it into the second of three purses, the second would then contain 4 times as much as remains in the first. If $60 of what is now in the second is put into the third, the third will contain twice what is in the first and second together. Now, if $40 be removed from the third and put into the first, there will be half as much as in the third. What did each purse originally hold?
Penny Nom lui répond.
Three questions 2006-05-17
Diane pose la question :

Question:

I

What is the largest real number less than 10?
1- there is no largest real number less than 10 or
2- 9
or
3- 9.999...

II

Given that not (a and b) implies c.What does
(not c) imply ?
1-a and b
2- (not a and b) or (a and not b)
3- (not a and b) or (a and not b)
4- a or b

III

What are the x and y intercepts of the equation
2x + 3y -6 =0 ?
1- x=3 and y=2
2- x=6 and y=-2
3- -3x + 2y =0


Paul Betts lui répond.
Cutting a piece of PVC pipe 2006-05-03
Shonda pose la question :
A plumber has a 10' piece of PVC pipe. How many 9/5 foot pieces can be cut from the 10' piece?
Penny Nom lui répond.
A word problem with fractions 2006-05-02
Stuart pose la question :
I have 54 1/4 yards of material. i need to cut as many pieces as possible out of it that are 3 1/12 long. how many pieces will you get and how much is left over?
Stephen La Rocque lui répond.
How many people are in the race? 2006-04-07
Marty pose la question :
You're in a race with 1/5 of the racers ahead of you and 5/6 of them behind you. How many people are in the race?
Penny Nom lui répond.
Piecewise functions 2006-03-21
Kris pose la question :
First Problem:
Southeast Electric charges .09 cents per kilowatt-hour for the first 200 kWh.The company charges .11 cents per kilowatt-hour for all electrical usage in excess of 200 kWh. How many kilowatt-hours were used if a monthly electric bill was $57.06? The answer I came up with is 360, is that right? and also how do I set it up in an equation form?

Second Problem:
A construction worker earned $17 per hour for the first 40 hr of work and $25.50 per hour for work in excess of 40 hr. One week she earned $896.75. How much overtime did she work? I came up with 8.5 hrs over-time worked. Again I don't know how to set up the equation to come up with the answer.

I need some pointers on how to figure out story problems! If you have any suggestions that would help me out I would be very grateful.

Penny Nom lui répond.
What percentage of the seniors polled yes? 2006-03-20
Jean pose la question :
An equal number of juniors and seniors responded to the question, "Do you like math?" Each respondent said yes or no. If 70% of those who said yes were seniors and 80% of those who said no were juniors, what percentage of the seniors polled yes?
Penny Nom lui répond.
Back to the nines 2006-03-15
Victoria pose la question :

Can you answer this problem, does an answer exist?

  • Get a set of numbers 1-9 !
  • Using the whole set of nine number tiles (digits 1-9), try to arrange them to make three 3-digit numbers so that the sum of the first two is the third.
Can this be done without carrying over? If not can it be done without carrying over into the hundreds column?

Claude Tardif lui répond.
Zhi Wei was born on christmas day in 1983. 2006-02-14
Clement pose la question :
Zhi Wei was born on christmas day in 1983. His father shares the same birthday, but he was born in 1951. In which year will Zhi Wei's age be exactly 1/3 of his father's age?
Stephen La Rocque lui répond.
The box of maximum volume 2006-02-01
Elizabeth pose la question :
A box factory has a large stack of unused rectangular cardboard sheets with the dimensions of 26 cm length and 20 cm width.
The question was to figure what size squares to remove from each corner to create the box with the largest volume.
I began by using a piece of graph paper and taking squares out. I knew that the formula L X W X H would give me volume. After trial and error of trying different sizes I found that a 4cm X 4cm square was the largest amount you can take out to get the largest volume. My question for you is two parts

First: Why does L X H X W work? And second, is their a formula that one could use, knowing the length and width of a piece of any material to find out what the largest possible volume it can hold is without just trying a bunch of different numbers until you get it. If there is, can you explain how and why it works.

Penny Nom lui répond.
Word problems 2006-01-27
Duk pose la question :
One kind of candy sells for 90cents more a pound than another kind. A pound of each sells for a total of $5.10. What is the selling price of each kind?


A soft drink sells for 20 cents more than the deposit required on the bottle. The cost of the soft drink and the bottle deposit totals 70cents. How much is the soft drink? The bottle deposit?

Penny Nom lui répond.
Joey had 8 drinking glasses, all of different sizes. 2005-12-29
Danielle pose la question :
Joey had 8 drinking glasses, all of different sizes. he has lined them up from smallest to largest and numbered them #1 (smallest) to #8 (largest). he knows that glass #4 holds 10 ounces and that glass #7 holds a pint, or 16 ounces. Now he wants to figure out how much all the others hold!

He experiments by filling up different glasses with water and pouring the water back and forth into other glasses. Her are his results:

Penny Nom lui répond.
Two dogs and a flea 2005-12-23
Michelle pose la question :
Two dogs, each traveling at 10 ft/sec, run toward each other from 500 feet apart. As they run, a flea flies from the nose of one dog to the nose of the other at 25 ft/sec. The flea flies between the dogs in this manner until it is crush when the dogs collide. How far did the flea fly?
Penny Nom lui répond.
A rectangle has a length that is 7cm more than twice the width 2005-12-21
Stephanie pose la question :
A rectangle has a length that is 7cm more than twice the width. The area of the rectangle is 60cm squared. Find the dimensions of the rectangle.
Penny Nom lui répond.
Skeeball 2005-12-21
Jenny pose la question :
Kira and Dajuan decided to have a Skeeball contest. They each played one game to see who would get the highest score. A description of their contest follows:
Denis Hanson lui répond.
A word problem 2005-12-19
Karen pose la question :
A package designer wants to protect an expensive book with a 5 cm wide cardboard rim. The area of the rim is equal to the area of the book. What is the length of the book? (The book is square)
Penny Nom lui répond.
A max-min problem 2005-12-16
Julie pose la question :
A car travels west at 24 km/h. at the instant it passes a tree, a horse and buggy heading north at 7 km/h is 25 km south of the tree. Calculate the positions of the vessels when there is a minimum distance between them.
Penny Nom lui répond.
Mrs. Faria lives on an island 2005-12-15
Julie pose la question :
Mrs. Faria lives on an island 1 km from the mainland. She paddles her canoe at 3 km/h and jogs at 5 km/h. the nearest drug store is 3 km along the shore from the point on the shore closest to the island. Where should she land to reach the drug store in minimum time?
Penny Nom lui répond.
Pat invested a total of $3000 dollars 2005-12-14
Duane pose la question :
Pat invested a total of $3000 dollars. part of the money yields 10 percent interest per year and the rest yields 8 percent interest per year if the total yearly interest is $256 how much did pat invest at 10 per cent and how much at 8 percent.
Penny Nom lui répond.
A long distance call 2005-12-05
A student pose la question :
The Small World long distance phone company charges 55cents for the first minute of a long distance call and 23cents for each additional minute.

1. How much would a 10- minute long-distance call cost?

2. If a call costs $4.55. how long did the call last?

3. Write an equation for the total cost, C, of an m-minute long-distance call.

Penny Nom lui répond.
Two word problems 2005-11-14
Jennifer pose la question :

1. Every other person on a school's parent advisory committee is surveyed to determine how many people support passage of a school bond to build a new elementary school. Is this a good sample? Why or why not?

2.What is the difference in elevation between the highest point in California,Mount Whitney,which towers 4421 meters above sea level, the lowest point in California,Death Valley, which lies 86 meters below sea level?


Harley Weston lui répond.
A picture window 2005-11-14
Marcos pose la question :
The length of a picture window is 2 feet longer than twice its width. If the diagonal of the window is 13 feet, find the dimensions of the window.
Penny Nom lui répond.
Add one 1 at the beginning and at the end of a number 2005-11-13
Samuel pose la question :
If we add one 1 at the beginning and at the end of a number, this number is increased by 14789. What is the sum of the digits of the number?
Penny Nom lui répond.
Mario is 16 years older than his youngest sister, Mercedes. 2005-11-08
Jennifer pose la question :
Mario is 16 years older than his youngest sister, Mercedes. Together, their ages total 36 years . How old is each person?
Paenny Nom lui répond.
How many passengers boarded the plane in Phoenix? 2005-11-03
Vish pose la question :
Passengers boarded a plane in Phoenix. In Dallas 1/2 of the passengers got off and 4/5 of the original number got on. In Memphis 3/4 of the passengers got off and twice the number of remaining passengers got on. In Chicago 2/3 of the passengers got off the plane leaving 39 passengers. How many passengers originally boarded the plane in Phoenix?
Penny Nom lui répond.
Writing an equation 2005-11-01
Richie pose la question :
A man's electric bill is $23 less than his gas bill. The two utilities cost him a total of $109. Find the amount of his gas bill.
Penny Nom lui répond.
sin(kx) = x 2005-10-20
David pose la question :
What is an integer value for k so that sin(kx) = x has exactly 2005 solutions? How does one arrive at the answer?
Harley Weston lui répond.
A boat weighs 1500 lb more than its motor ... 2005-10-17
Dimitri pose la question :
A boat weighs 1500 lb more than its motor and 1900 lb more than its trailer. Together the boat and motor weigh five times as much as the trailer. How much does the boat weigh?
Penny Nom lui répond.
Jim is travelling from Toronto to Ottawa 2005-08-15
Eleanor pose la question :
Hi! I am looking for an easy way to solve this type of question: Jim is travelling from Toronto to Ottawa, a distance of 435 miles. He travels part of the way at a speed of 100 km/h and because of an accident, he uses a secondary road and travels at 70 km/h. If the trip took him 6.5 hours, how far did he travel on each of the two roads.
Penny Nom lui répond.
Trading fish for bread 2005-02-25
Mike pose la question :
Byron lives where people trade goods they produce for other things they need. He has some fish and wants to trade them for bananas. He finds the following:
5 fish = 2 loaves of bread
6 oranges = 2 melons
1 loaf of bread = 1 banana and 3 oranges
4 loaves of bread = 14 oranges
How many bananas can Byron get with 5 fish?

Penny Nom lui répond.
By how much is 100 multiplied or divided,... 2005-01-27
Benedict pose la question :
By how much is 100 multiplied or divided, so that whether the number obtained is divided by 5 or 7, there will be a remainder of 1 and so that at the same time, the first quotient is greater by 4 than the second?
Penny Nom lui répond.
Profit 2005-01-10
Abraham pose la question :
The profit a coat manufacturer makes each day is modeled by the equation P(x)=-x2+120x-2000, where P is the profit and x is the price for each coat sold.For what values of x does the company make a profit?
I don 't understand this problem(how to do it) and hope you can help me.

Penny Nom lui répond.
Planting trees 2004-11-15
Heather pose la question :
Design a plan of how it would be possible to plant 10 trees in 5 rows, and have 4 trees in each row.
Penny Nom lui répond.
A mixture problem 2004-09-30
Abraham pose la question :
A chemist has one solution that is 35% pure acid and another solution that is 75% pure acid. How many cubic centimeters of each solution must be used to produce 80 cubic centimeters of solution that is 50% acid?
Penny Nom lui répond.
Three word problems 2004-09-12
Adrian pose la question :

1. Increasing area of a field: Julia's soybean field is 3m longer than it is wide. To increase her production, she plans to increase her to increase both the length and width by 2m. If the new field is 46m2(2nd power) larger than the old field, then what are the dimensions of the old field?

2. Width of a Football Field: If the perimeter of a football field in the NFL including the end zones is 1040 ft and the field is 120 yd long, then what is the width of the field in feet?

3. Fencing dog pens Clint is constructing two adjacent rectangular dog pens. Each pen will be three times as long as it is wide, and the pens will share a common long side. If Clint has 65 ft of fencing, what are the dimensions of each pen?


Penny Nom lui répond.
A travelling salesman 2004-09-09
Liz pose la question :
A salesman traveled due west from city A to city B. The distance he traveled, that is the ditance from A to B, was X miles. He returned from B to A and found that he had traveled half the distance, X/2 miles. How can that be?
Chris Fisher and Penny Nom lui répond.
Crossing a river 2004-09-09
Barb pose la question :
Nine men and two boys, trekking through the jungle, need to cross a river. They have a small inflatable boat and it's easy enough to row it across the river. The boat, however, can hold no more than one man or the two boys. How can they all get across? (Hint. suppose there was only one man and two boys) Does it make math sense and what would the answer be
Penny Nom and Claude Tardif lui répond.
Word problems 2004-05-19
A student pose la question :
why can't 2nd graders have a easy time doing word problems and drawing pictures with it
Diane Hanson lui répond.
The problem of Apollonius 2004-04-25
Mitja pose la question :
There are given 2 circles lying one out of another and one point out of both circles. How to construct a circle passing through a given point and internally tangent to one and externally tangent to the other cirlce?
Chris Fisher lui répond.
Red riding hood 2004-02-14
Frank pose la question :
Red riding hood had a number of jars to take to grandma's house. As she traveled she gave away 1/3 of them to an old lady. Then later As she walked through the forest a wolf stole 1/2 of her remaining jars. When she arrived at grandma's house she gave her 2/3 of the remaining jars. She kept 6 jars for herself. How many jars did she start out with.
Diane Hanson lui répond.
Three numbers are added in pairs 2004-02-12
Jane pose la question :
When three numbers are added in pairs, the sums of the pairs are 22, 39, and 45. What are the three numbers?
Penny Nom lui répond.
A quadratic word problem 2004-02-04
Carl pose la question :
A walkway of uniform has 72m2 and surrounds a swimming pool that is 8m wide and 10m long. Find the width of the walkway.
Penny Nom lui répond.
Unusual occurances 2004-01-08
Martin pose la question :
My wife and I have a question about the probability of something that happened to us a few years ago. So far, no one has been able to give me even an approximate answer. On my 32nd birthday, my wife and I went out to eat at local Japanese hibachi style restaurant. At the restaurant, couples/families are sat together around the hibachi where the cook performs a show. There was a fifteen minute or so wait, so my wife and I sat in the lounge waiting for our name to be called. When they called our names for the reservation, this is what happened. The first group called was the Martin family. Then they called the Francis family. We were the next family to be called, the Ashton family. My full name is Martin Francis Ashton! I think the odds of that happening to someone are very unlikely, but it did, and there is more. Next, we were all sat at the same table in that order, "Martin" family, "Francis" family, then us, the "Ashton" family. Again, it formed my full name!
Penny Nom lui répond.
Laying decorative bricks 2004-01-07
Duk pose la question :
Loren is laying decorative brick along both edges of the 21-meter walkway up to his house. Each brick is 0.26 meters long. He is placing the bricks end to end. How many bricks does he need to do the job?
Penny Nom lui répond.
Diamonds and Pearls 2003-12-11
Lauren pose la question :
A crown holds a total of 3080 jewels.
It is made up of diamonds and pearls.
There are 10 times as many diamonds as there are pearls.
How many pearls are there?

Penny Nom lui répond.
Mr.Carter is very cautious 2003-11-26
Bob pose la question :
Mr.Carter is very cautious. He decides to invest in only three stocks: one low stock, one high stock, one medium stock. Given that the expected annual yields are 6% for low stock, 7% for medium stock, and 8% for high stock, he wants his investment in medium stock to be half of his total investment in low and high stock. How much should I invest in each type fo stocks to expect a total annual return fo $650 form my investments?
Harley Weston lui répond.
Mixing Brazil nuts and cashews 2003-11-09
Bob pose la question :
Cashews are sold for 1.20 per 1/4 pound and Brazil nuts are sold for $1.50 per 1/4 pound. If you mix 20lbs of Brazil nuts, how many cahsews would it take to make a mix that sells for $1.30 per 1/4 pound?
Penny Nom lui répond.
A worm on a hill 2003-08-21
Lisa and Samantha pose la question :
A WORM IS AT THE BOTTOM OF A 10 FOOT HILL. HE CRAWLS UP THE HILL 4 1/2 FEET A DAY. AT NIGHT WHEN HE REST HE SLIDES DOWN 2 1/2. HOW LONG DOES IT TAKE THE WORM TO CRAWL UP THE HILL.
Penny Nom lui répond.
Cathy's Clothing 2003-07-15
Cathy pose la question :
I am supposed to write a practical and useful word problem that would use the following algebriac inequality to solve it: 12x + 25 > 15x + 10. State the quanity that represents x and solve the inequality.
Penny Nom lui répond.
A problem with lugs 2003-07-11
Lori pose la question :
A young man's car developed a flat tire as he was driving along a deserted street. He pulled over to the curb and did all the usual things: removed the hub cap, unscrewed the lugs and rested them carefully in the hub cap, jacked up the car. As he was putting the spare tire onto the axle he accidentally kicked the hub cap. The lugs rolled out, and all five of them fell down a nearby grate. Peering through the bars of the grate the man thought that he could see the lugs about 6 feet below in a shallow water puddle. He had a problem. How do you think he solved it?
Penny Nom lui répond.
A mixture problem 2003-07-10
A student pose la question :
Having a problem with word problems. example A chemist mixes a 10% acid solution with a 50% acid solution to form 400mL of a 40% solution. How much of each solution should be used.
Penny Nom lui répond.
A wooden deck around a pool 2003-07-09
Dat pose la question :
A pond is enclosed by a wooden deck that is 3 feet wide. The fence surrounding the deck is 100 feet long.
  1. If the pond is square, what are its dimensions?

  2. If the pond is rectangular and the length of the is three times its width, what are the dimensions of the pond?

  3. If the pond is circular, what is the diameter of the pond?

  4. Which pond has the most area?

Penny Nom lui répond.
C is 10 more then the square of... 2003-07-03
Carolina pose la question :

C is 10 more then the square of the quotient of the sum of x and y , and the product of x and y. Which equation expresses this relationship?

A. C=(x+y +10)^2        ___        xy  
B. C=(x+y)^2 + 10        ___        xy  
C. C=(xy)^2+10           ___       x+y  
D. C=(x+y)^2 + 10        ___        xy 


Penny Nom lui répond.
Setting up a word problem 2003-06-30
Christie pose la question :
A rectangular corral is forty feet longer than it is wide. If the perimeter is 220 feet, determine the length and width of the corral.
Penny Nom lui répond.
Sesame Street on Stage 2003-06-25
Christie pose la question :
Sesame Street on Stage has different ticket prices for adults and for children under 6. Beth and her two children, ages 3 and 4, paid $15 to gain entrance, while Jamie and John Jacobs and their 2-year old daughter got in for $19.50. What is the ticket price for adults?
Penny Nom lui répond.
Spacing the spindles for a railing 2003-06-06
Jennifer pose la question :

Scott is a homebuilder. He builds railings in which he places spindles. Spindles ar evertical posts taht are equally spaced beneath a horizontal bar. Scott would like a mathematical model to help him determine the amount of space to put between each spindle. The railing must follow the following criteria: The spaces between each spindle must be equal except for the ones at either end. Theses spaces are smaller. They are half the width of a spindle less than the other spaces. The number of spindles needs to be minimized since spindles are costly.

Help Scott determine what width of space to use between the spindles. Create a mathematical model to determine the width of space between each spindle in termso f the number of spindles. Use an 8' (96") railing that has 2 1/2" wide spindles. Explain your thinking. For safety reasons the maximum width of a space is 4"

Generalize you model to determine the width of spaces for total railing of length L and spindle width s


Penny Nom lui répond.
George and his goat herd 2003-05-27
A student pose la question :

George the bulgarian goatherd drives his father's goats into a valley each morning and lets them browse there all day before driving them home in the evening.

he notices that each morning the goats immediately separate into groups and begin to feed the number and sizes of the initial groups vary some days there are nine and so days there are three or fewer. there can be groups of one or the whole group.

about every five minites one goat breaks away from each feeding group and these breakaway goats form into a new group.

George has noticed that by the afternoon, even though the goats continue their regrouping the sizes of the groups have stabilised, and there is always seven feeding groups.

How many goats are there in the herd? What are the sizes of the feeding groups once they have stabilised?


Penny Nom lui répond.
The square of my age was the same as the year 2003-04-14
Pat pose la question :
Augustus de Morgan wrote in 1864, "At some point in my life, the square of my age was the same as the year." When was he born?
Penny Nom lui répond.
A handshake problem 2003-03-31
Jaylan pose la question :
Suppose you and your partner attend a party with n other couples. Several handshakes took place. No one shook hands with himself (or herself) or with their partner, and no one shook hands with the same person more than once. After all the handshaking was completed, suppose you asked each person, including your partner, how many hands they had shaken. Each person gave a different answer.

Determine how many hands did you shake and how many hands did your partner shake when n=5

Penny Nom lui répond.
Quadratic word problems 2003-03-30
A student pose la question :
Question:
i think i know the basics of how to solve direct quadratic equations,but how do i go about solving those word problems? i have tried them times and again, but nothing seems to work at all!they are driving me crazy! pls help!:):):):):)

  1. bob & nick earned $1260 each. bob's hourly wage is $3 more than nick's hourly wage. he worked 2h less compared to nick. find the number of hours nick worked.
  2. there are 2 tanks in henry's house. in tank A, the fish are all goldfish. they are bought at a total cost of $259. in tank B, there are only guppies. the guppies were bought at a cost of $1.20 each. a day later,henry bought 3 more goldfish and put them into tank A. the number of guppies in tank B is now twice the number of goldfish in tank A.the total cost of all the fish that henry has presently,i.e. goldfish & guppies, is $355.30. given that the cost of each goldfish is the same,
    a)find the initial number of goldfish in tank A
    b)find the total cost of all the guppies.
  3. a particular disc can be made to rotate at 2 different speeds. if it is made to rotate slower by 135 revolutions per hour, it wld require an additional 2.7 hour to make 315 revolutions. find the higher speed at which it can operate.

Penny Nom lui répond.
Sasha's candies 2003-02-18
Pat pose la question :
Tick-tac-toe

Sasha and Trudy are playing tick-tac-toe. Sasha agrees to give trudy two pieces of candy for each game Sasha loses, and Trudy agrees to give Sasha three pieces of candy for each game that Trudy loses. After playing thirty games, Sasha has the amount of candy that he started with. If no ties occurred, how many games did Sasha win?

Paul Betts lui répond.
Storyteller figurines 2003-02-10
A student pose la question :
It takes 3/4 of an hour to bake a storyteller figurine. If only one figurine can be baked at a time, how many can be baked in 6 hours?
Penny Nom lui répond.
A train with 2 cars 2003-02-04
Michael pose la question :
A train with 2 cars is traveling at a speed of 80 km/hr from town X to town y, located 800 km from each other. At the same moment that the train departed, a passenger started to walk back and forth from one end of car B to the other at a speed of 100cm/sec. Arriving in town Y, the passenger had already gone and returned 720 times. The length of car A is that of car B plus one fourth of the length of the locomotive, and the length of the locomotive equals the length of Car A plus one fifth of the length of car B. What is the total length of the train?
Penny Nom lui répond.
Problem solving 2003-02-03
Brigitte pose la question :
My daughter is having lot's of problem with problem solving she is in grade 6. she is using mathematics in action from macmillan/ mcgraw- hill. Do you know of any way she can get help, and if there is any tests on line
Diane Hanson lui répond.
Fibonacci exam 2003-01-28
Mike pose la question :

My son will be participating in the national math contest. He is a grade 4 student but will be writing the Fibonacci exam for grade 5. He has been given last years exam for practice. Parents have been ask to assist for this part. I was therfore hoping for a little "inside" help on several questions with answers & short explanations. This with a would be greatly appreciated.(from last years exam)

  1. With 3 weights, Mathusalem can weigh any object that has a weight which is smaller or equal to 13 kg, but that weighs a whole number of kilograms. He wants to weigh an object of 7 kilograms. To do so, he must place two of the weights on the left side of the scale, and the third one on the right side. Which one will he have to place on the right side

    a)4 b)3 c)6 d)2 e)5
  2. Mathilda uses a rectangular prisms to build stairs. The cross section of each prism is a square which has a side of 1 dm. Mathilda has already put in place 4 steps of a staircase that must have a height of 10 dm. When finished, the staircase will have a volume of 550 dm3. What will the width of the staicase in dm be?

    a)10 b)55 c)11 d)1 e)100
  3. The year 1991 was the last palindrome year of the second millennium. The year 2002 is the first palindrome year of the third millennium. Including 2002, how many palindrome years will there be, altogether, in the third millennium ?
    a)8 b)2 c)10 d)182 e) 9


Greatly appreciated,
Mike


Penny Nom lui répond.
Some 5th grade problems 2003-01-24
Sabrina pose la question :

[What is the greatest common factor of 20,28, and 36?] next problem is

[5k+7(k+8)= ] next problem

[Curtis simplified 0.8 divided by 0.2 x 0.04 and got 10. Latoya Simplified and got 1.6. is either correct? Can you explaine how you got the answer please.]


Penny Nom lui répond.
Dorothy and the wizard 2003-01-24
Ken pose la question :

dorothy was going to see the wizard of oz...she stopped at the bakery and bought a box of cookies.

she met the scarecrow and gave him half the cookies. she ate half of the remaining cookies and threw one half cookie away.

she met the tin man and gave him half the cookies. she ate half the remaining cookies and threw one half cookie away.

she met the lion. she gave him half of her cookies. she ate half the remaining cookies and threw the LAST half cookie away.

how many cookies did dorothy leave the bakery with?


Penny Nom lui répond.
The cousin of Sally's sister's boyfriend 2003-01-23
Michael pose la question :
Sally went to a farm to buy eggs. Returning home, she gave half of them to her sister who, in turn, gave a third of those she had gotten to her boyfriend. The latter, after eating one third of the eggs that he had gotten, gave the rest to his cousin. Given that each egg weighs 70 grams, that Sally cannot carry more than 2.5kg, and that the eggs were raw, calculate how many eggs the cousin of Sally's sister's boyfriend received.
Penny Nom lui répond.
A penny, a nickel, a dime, a quarter, and a loonie 2003-01-21
Blaine pose la question :
I have 5 coins: a penny, a nickel, a dime, a quarter, and a loonie. How many different amounts of money could I pay using any combination of these coins?
Penny Nom lui répond.
Jo's books 2003-01-21
debra pose la question :
Jo announces: I have no more than 999 books.
Jean says: No Jo, You have fewer than 1,000 books.
Mary says: Jo has at least 1 book.

Only one of these statements is true, How many books does Jo own?

I do not know HOW to approach this problem and solve it.

Penny Nom lui répond.
Two numbers have a ratio of 5:3 2003-01-01
Patricia pose la question :
Two numbers have a ratio of 5:3. The larger number is 36 more than half the difference of the two numbers. What are the two numbers?
Penny Nom lui répond.
The product of two consecutive numbers is 41 more than their sum 2002-11-15
A mother pose la question :
THE PRODUCT OF TWO CONSECUTIVE NUMBERS IS 41 MORE THAN THE SUM OF THE NUMBERS. WHAT ARE THE NUMBERS?
Penny Nom lui répond.
A pattern in a table 2002-11-14
Thamar pose la question :
how do you solve for pattern in a table like

the top row is261217z
the bottom row is9131924blank

question ask in each blank space write a rule to find the next number in the table

Penny Nom lui répond.
Three bags of marbles 2002-11-08
A student pose la question :
I have 3 bags of marbles

1 bag is labeled blue; 2nd bag is labeled red; 3rd bag is labeled blue & red

all the bags are mismarked

your job is to take one marble from 1 bag look at it and correctly label all the bags


Penny Nom lui répond.
Mrs. Klein has been losing 1 pound a week for the last year 2002-10-30
Brett pose la question :
On her diet, Mrs. Klein has been losing 1 pound a week for the last year. Her husband weighs 110 pounds more than she does now. If his weight is twice what her weight was 6 weeks ago, how much does mrs. Klein weigh now?
Penny Nom lui répond.
How many trees were planted in March? 2002-10-20
Allison pose la question :
The number of trees planted by the Alpine Nursery in April was 3 more than twice the number of trees planted in March. If 71 trees were planted in april, write and solve an equation to find how many trees were planted in March.
Penny Nom lui répond.
At the zoo 2002-10-20
A student pose la question :
The number of adults at the zoo was 2/9 the number of children. there are 700 more children than adults. The number of men was four times the number of women. The number of girls was four times the number of boys. Find the total nymber of men and boys at the zoo.
Penny Nom lui répond.
Two problems 2002-10-14
Seçkin pose la question :
i am from turkey i am a teacher in a collage i have two difficult question which i havent solve yet these are very important for me....
Claude Tardif lui répond.
Nixon, Jefferson, and Madison 2002-10-08
Lisa pose la question :
The longest-lived US presidents are John Adams(age90), Herbert Hoover (also90), and Harry Truman (88). Behind them are James Madison, Thomas Jefferson, and Richard Nixon. The lattter three men lived a total of 249 years, and their ages at the time of death form consecutive odd integers. For how long did Nixon, Jefferson, and Madison live?
Penny Nom lui répond.
8 squares from 12 sticks 2002-10-08
A student pose la question :
If you have 12 sticks the same size, how do you make them into 8 squares?
Claude Tardif lui répond.
$100 is split between four guys. 2002-10-03
Stephan pose la question :
$100 is split between four guys. A,B, C, and D. How much money does if person get if B has four more dollars than A, C has 8 more dollars than B, and D has twice as much money as C?
Penny Nom lui répond.
A max/min problem 2002-09-21
Evelina pose la question :
A window is the shape of a rectangle with an equilateral triangle on top. The perimeter of the window is 300 cm. Find the width that will let the maximum light to enter.
Penny Nom lui répond.
How long will it be before you reach your friend? 2002-09-16
Margaret pose la question :
Your friend runs at 8 miles per hour and you drive at 40 miles per hour, hence the diatance between you is decreasing at 32 miles per hour. You firend left 2 hours before you so how far has he gone in that 2 hours? How long will it take for the distance between you to decrease to 0 miles if the distance is decreasing at 32 miles per hour?
Penny Nom lui répond.
Formulating equtions 2002-09-14
Theresa pose la question :
Hello. In math class we have to formulate equations for certin questions for extra credit. We are allowed to ask anyone and anyone can do it for us and explain it to us. Could you please do that? Here are the questions
  1. Jordan has 3 times as much money as Reva. Together they have $44. How much money does each have?

  2. The Tigers played 48 games. They won twice as many as they lost. How many did they win?

  3. There are 900 students in Sewickley Academy. There are 20 more girls than boys. How many girls are there?

  4. A board 400 cm long is cut into 2 pieces. One piece is 66 cm longer than the other. Find the lenght of the shorter piece.


Penny Nom lui répond.
Mixing solutions 2002-09-13
Margaret pose la question :
In a chemistry laboratory the concentration of one solution is 10% hydrocholoric acid (HCl) and that of a second soulution is 60% HCl. How many mL of each should be mixed to obtain 50 mL of a 30% HCl solution??
Penny Nom lui répond.
A fish weighs 10 pounds more than half its weight. 2002-09-10
Rebecca pose la question :
A fish weighs 10 pounds more than half its weight. How much does it weigh?
Penny Nom lui répond.
I am a 3 digit number. 2002-09-06
Jasmine pose la question :
I am a 3 digit number. My last digit is 3 times my first digit. My firat digit is twice my middle digit. What numbers am I? There are at least 2 correct answers?
Paul Betts lui répond.
Dan is 4 inches taller than Mike. 2002-09-04
A parent pose la question :
Dan is 4 inches taller than Mike. Together they are 8 feet 8 inches tall. How tall is each boy in feet and inches.
Penny Nom lui répond.
A square of tiles 2002-08-30
Rosa pose la question :
How do I go about finding a formula for the number of tiles I would need to add to an arbitrary square to get to the next sized square?
Penny Nom lui répond.
20 men dig 40 holes in 60 days 2002-07-24
Lindsey pose la question :
20 men dig 40 holes in 60 days. So, 10 men can dig 10 holes in how many days?
Penny Nom lui répond.
As much greater than 47 as it is less than 105 2002-07-23
Joe pose la question :
To find the number in question you need to find the number exactly half-way between 47 and 105. Another way of thinking about the number that is half-way between two other numbers is as the average of the two numbers given.
Leenaan Boehm lui répond.
The Praxis II test 2002-07-09
A student pose la question :
I am taking the Praxis II test and I can't seem to answer certain styles of questions. Please help!!!!!!
  1. In a class of 29 children, each of 20 children has a dog and each of 15 has a cat. How many of the children have both a dog and a cat?

  2. If there are exactly 5 times as many children as adults at a show, which of the following CANNOT be the number of people at the show? a. 102 b. 80 c. 36 d. 30

  3. In order to estimate the population of snails in a certain woodland, a biologist captured and marked 84 snails there were then released back into the woodland. Fifteen days later the biologist captured 90 snails from the woodland, 12 of which bore the markings of the previously captured snails. If all of the marked snails were still active in the woodland when the second group of snails were captured, what should the biologist estimate the snail population to be based on the probabilities suggested by this experiment? a. 630 b. 1,010 c. 1040 d. 1080.

Paul Betts lui répond.
Jack and Jill wrote letters 2002-06-19
Angel pose la question :
jack and jill each bought a stationary
# of sheets of paper in each box were the same
# of envelopes were the same
jill wrote letters consisting of 3 pages
jack wrote letters consisting of 1 page

when they wrote all letters jill had 50 envelopes left and jack had 50 sheets of paper left how many pieces of paper and how many envelopes?

Leeanne Boehm lui répond.
The sum of the areas of two regular decagons 2002-05-27
A parent pose la question :
The sum of the areas of two regular decagons is 39 square inches, and their radii are in the ratio of 2:3. Find the area of the larger decagon.
Paul Betts lui répond.
Flying with the wind 2002-05-19
SaraJean pose la question :
It takes 6 hours for a plane to travel 720 km with a tail wind and 8 hours to make the return trip with a head wind. Find the air speed of the plane and the speed of the wind current.
Penny Nom lui répond.
Trains and cracker boxes 2002-04-29
Lindsay pose la question :
1)Two trains are 250 miles apart on the same track heading towards eaxh other at 7AM- The first train travels at 55mph, the second at 75mph. At what time would they crash?

2)A cracker box measures 12 by 2 by 18 inches. The company wants to double the amount of crackers, but keep the shapes the same[similar] Find the new length[nearest tenth of an inch]


Penny Nom lui répond.
A test drive 2002-04-23
Jennie pose la question :
At 9 A.M. a test car driving at a constant speed passes a marker 50 miles from it's starting point. At noon the car is about 130 miles from the marker. If the test drive ends at 1:30 P.M., how far will the car be from its starting point?
Penny Nom lui répond.
Problem solving 2002-04-20
Kathy pose la question :
  1. Zachary wanted to run the shore-to shore marathon next month, a 26 mile race from one side of the island where he lived to the other. He decided to work up to 26 miles by running five days a week for the next five weeks. Each day he'd run one mile longer than he did the day before, except for the first day of the week, when he'd run the same number of miles he ran on the last day of the previous week. He wanted his last two practice runs to be 26 and 27 miles long.

    How many miles would he have to run on his first practice run?

  2. A school just bought a new set of encyclopedias. The front and back covers are 1/8 inch thick, and the pages are 1/100 inch thick (in other words, there are 100 pages per inch). the 26 volume set has a total of 5,250 pages. If you assume there is no extra space left between books, then .........

    What length of bookshelf will the encyclopedias take up?

Penny Nom lui répond.
The Proof in the Pudding 2002-04-09
A student pose la question :
The host at a party turned to a guest and said, "I have three daughters and I will tell you how old they are. The product of their ages is 72. The sum of their ages is my house number. How old is each?" The guest rushed to the door, looked at the house number, and informed the host that he needed more information. The host then added, "The oldest likes strawberry pudding." The guest then announced the ages of the three girls. What are the ages of the three daughters?
Claude Tardif lui répond.
Meg's biscuits 2002-03-29
Tami pose la question :
Meg's biscuits recipe calls for 4 cups of flour for every 1.5 cups of milk. If Meg uses 6 cups of flour, how many cups of milk will she need?
Penny Nom lui répond.
A hamburger and a soft drink 2002-03-23
A student pose la question :
A GROUP OF FRIENDS WENT OUT TO LUNCH. EACH BROUGHT A HAMBURGER AND A SOFT DRINK. TOGETHER A HAMBURGER AND A SOFT DRINK COST MORE THAN A DOLLAR. THE TOTAL COST FOR THE GROUP WAS $17.81. THERE WAS NO TAX OR TIP INCLUDED.

IF A HAMBUGER COSTS 2 CENT MORE THAN TWICE A SODA, FIND THE COST OF THE HAMBURGER.


Leeanne Boehm lui répond.
How much olive oil? 2002-03-15
Annie pose la question :
Joe used 1/3 cup of olive oil, which was 3/4 of the amount that he had. How much olive oil did he have!
Penny Nom lui répond.
What number am I? 2002-03-03
Samantha pose la question :
I am an even number that has more ones than tens. My thousands digit is the quotient of 9 divided by 3 and my tens digit is the sum of 3 and 3. I have no hundreds. What number am I?......Please answer this for me...The answer I come up with is 3,060...Is this right?..
Penny Nom lui répond.
Alfredos house number 2002-02-21
Aunt Patty pose la question :
Alfredos house number is between 20 and 35. The sum of the digits is less than 5. If you subtract 1 from it you would get a multiple of 3. If you add three, you get a multiple of 5. What is Alfredos house number.
Penny Nom lui répond.
Shipping charges 2002-02-19
Sohail pose la question :
A mail order company charges a fixed fee for shipping merchandise that weighs 1 pound or less, plus an additional fee for each pound over 1 pound. If there shipping charge for 5 pounds is $4.80, and for 12 pounds is $6.20, find the fixed fee and the additional fee.
Penny Nom lui répond.
A farmer takes 100 animals to the market to sell. 2002-02-19
Ann pose la question :
A farmer takes 100 animals to the market to sell. All are sold and $100 is earned. The prices were $5.00 per cow, $1.00 per sheep and $.05 per pig. At least one of each kind of animal was sold. How many of each kind of animal did the farmer take to market?
Penny Nom lui répond.
A man and his wife walk up a moving escalator 2002-02-13
Monty pose la question :
A man and his wife walk up a moving escalator. The man walks twice as fast as his wife. When he arrives at the top, he has taken 28 steps. When she arrives at the top, she has taken 21 steps. How many steps are visible in the escalator at any one time.
Peeny Nom and Claude Tardif lui répond.
Baseball and sit ups 2002-01-31
A student pose la question :
A baseball team won 8 more games than it lost. If it played 56 games, how many games did it win?

On the first day of practice, Paul did 3 sit ups. On the second day he did 5, and on the the third day he did 8, and on the fourth day he did 12. If this pattern continued, how many sit-ups did ihe do on the sixth day of practice?


Penny Nom lui répond.
A sale on eggs 2002-01-17
A student pose la question :
A store had a sale on eggs, selling 13 eggs for the usual price of a dozen eggs. As a result, the price of the eggs was reduced by 4 cents a dozen. What is the original price for a dozen eggs?
Penny Nom lui répond.
The famous "train problem" 2002-01-12
Karen pose la question :
How do you solve the famous "train problem"? For example, 2 trains leave different stations at the same time. One is traveling at 50 mph and the other at 40 mph. How long does it take them to meet?
Penny Nom lui répond.
Nickles, dimes, quarters and fifty cent pieces 2002-01-08
A parent pose la question :
The total for all coins counted is $4,564.50 The last coin added to the pile is a 50 cent piece There are 8 times as many 50 cent pieces as there are quarters There are 6 times as many dimes as nickles How many of each are there?
Penny Nom lui répond.
Maple trees and pine trees 2002-01-06
A student pose la question :
A team of scientists found that in a forest there was four maple trees for every nine pine trees.How many maple were there if they counted 45 more pine than maples?
Penny Nom lui répond.
Feeding Jumbo 2001-12-21
Lupe pose la question :
There are 2 dogs one named major and the other jumbo. major weighs 100 pounds and jumbo 150 pounds. they eat dry dog food which comes in a 40-pound bag that cost $30. Together, major and jumbo eat a whole bag a week. major eats two fifths of the bag while jumbo eats the rest.How much would it cost to feed jumbo in february, which has 28 days?
Penny Nom lui répond.
Making toys 2001-12-17
Karen pose la question :
Jonathan and Morgan are two of Santa's elves. Jonathan can make a toy in eleven hours. Morgan can make the same toy in nine hours. How long it take for both Jonathan and Morgan to make the toy if they were working together?
Claude Tardif lui répond.
A 1 m by 1 m square box in the xy-plane 2001-12-15
Murray pose la question :
Inside a 1 m by 1 m square box in the xy-plane, there are finitely many line segments, whose lengths sum to exactly 10 m. Show that there exists a straight line in the plane which crosses at least six of these line segments. (Hint: first, show that there exists a straight line in the plane which crosses at least five of these line segments.)
Claude Tardif lui répond.
Painting walls 2001-12-12
Rizwan pose la question :
3 sixth graders painted 4 walls in 3.5hrs. At that rate, how many walls would they paint in 7 hrs.
Penny Nom lui répond.
Renee, Paulo and Peter 2001-11-18
Sue pose la question :
Renee is 5 years older than Paulo. she is also 7 years older than Peter. The sum of their ages is 21. How old is each person.
Penny Nom lui répond.
what number doubled plus 20 will give you 4/3 the original number 2001-11-15
Hank pose la question :
what number doubled plus 20 will give you 4/3 the original number

2 x__ + 20 = 4/3 of the original number

Penny Nom lui répond.
A circle and triangle overlap 2001-11-09
Tara pose la question :
A circle and triangle overlap as shown.the area of the circle is three times the area of the triangle.If the common region is removed,then the area of the rest of the circle would be 14 sq cm more than the area of the rest of the triangle.How many sq cm are in the area of the complete triangle.
Penny Nom lui répond.
Three problems 2001-10-28
Brenda pose la question :
  1. Joseph is planting bushes around the perimeter of his lawn. If the bushes must be planted 4 feet apart and Joseph's lawn is 64 feet wide and 124 feet long, how many bushes will Joseph need to purchase?

  2. The cost of a long distance phone call is $1.50 for the first two minutes and $0.60 for each additional minute. How much will Maria pay for a 24 minute phone call?

  3. Find the next three numbers in the pattern. 1,3,7,15,31,___,____,___.

Penny Nom lui répond.
Who owns what pet? 2001-10-03
A parent pose la question :
Don, Frank, Jenny, and Ken each come from one state, either Alaska, Maine, Montana, or Oklahoma. They each speak one primary language, either English, french, Russian, or Spanish. And they each have one of four pets, a chinchilla, a dog, a hamster, or a turtle.

Figure out which language and what pet each of the four people have, using the following clues.
.
.
.


Judi McDonald lui répond.
Joan and Jan work together 2001-09-26
Karyna pose la question :
Joan and Jan work together and they set up a bandstand in just 24 minutes, but if Joan does it by herself she takes 1 hour. How long would it take Jan to set up the bandstand by himself?
Claude Tardif lui répond.
Bicycles and tricycles 2001-09-26
Sally pose la question :
A bicycle shop has 5 bicycles and tricycles to repair. They have 12 wheels. What strategy would you use to determine how many bicycles and tricycles need to be repaired?
Claude Tardif, Diane Hanson and Penny Nom lui répond.
Scoring a college placement test 2001-09-26
Carmen pose la question :
A college placement test consist of 75 multiple-choice questions, each having 5 possible answers. The exam is scored by subtracting from the number of correct answers one-quarter of a point for each question answered incorrectly. If a person answers every question on the exam and scored 45, how many questions were answered wrong?
Penny Nom lui répond.
Investing in a yacht 2001-09-26
Junior pose la question :
Marvin and his four friends wish to invest in a yacht by sharing equally in the cost. As the date of sale approaches, Marvin realizes that if three more people join the partnership, each partner's share would decrease by $18,000. How much does the yacht cost?
Penny Nom lui répond.
Julia goes to work 2001-09-25
Karyna pose la question :
On one October morning, Julia rides her bike (at 12 miles per hour) from her home to her friend Ida's house; then the two of them walk (at 6 miles per hour) to work. If it takes an hour for Julia to go the 10 miles from her home to work, how far does she walk?
Penny Nom lui répond.
What are the two numbers? 2001-09-24
A student pose la question :
What are the two numbers.
  1. the sum of two numbers is 15. 6 times the smaller number is 4 times the larger number .find the two numbers.
  2. the sum of the two numbers is 28. 2 times the larger number is 5 times the smaller number minus 7. find the two numbers.

Claude Tardif lui répond.
David's wages 2001-09-24
Kimberlee pose la question :
My math question is David earns $6.00 per hour plus $9.00 for every extra hour he works over 40 hours per week. If David earned $285.00 last week, how many extra hours did he work?
Penny Nom lui répond.
27 2001-09-10
Kacy pose la question :
In class we were given this problem. We have the numbers 30, 29, 19,11,26. these numbers = 27 in some way but how? the numbers can be applied any way using + - / X ( ) but can only be used 1 time each. can you please help me.
Claude Tardif lui répond.
What did the girls score on average? 2001-07-20
Rajesh pose la question :
The students of two schools were sitting the same test. The students attending the first school scored 74 on average; within this the average scores of the boys and the girls were 71 and 76, respectively. The corresponding scores in the other school were 84, 81 and 90, respectively. If the average score of all boys was 79, what did the girls score on average?
Penny Nom lui répond.
Geometry problems involving triangles 2001-06-07
Sandi pose la question :
Find the radius of the largest circle contained in a right triangle whose legs are 8 and 15 and hypotenuse is 17. If the right triangle has legs a and b and hypotenuse c, find an expression for the radius of the circle.
Penny Nom lui répond.
Election in Angletown 2001-06-07
Zoe pose la question :
At the last school election in Angletown 4620 votes were cast. Candidate Acute received 236 more votes than Candidate Obtuse. Candidate Right received 698 votes more than Candidate Acute. Candidate Straight received 256 votes less than Candidate Right. How many votes did each receive?
Penny Nom lui répond.
A few problems 2001-04-22
Carol pose la question :
Hello I am a College student trying get through my elmentry concepts class. I am also working with the middle and elementry school student with their work. I was given a few problems to work on and i am having a hard time explaining them to students. DO you think you can help with a coupld of these questions!
Penny Nom lui répond.
The number of occurrences of 0 is __, of 1 is __, of... 2001-04-17
Martyanne pose la question :
"In this sentence the number of occurrences of 0 is __, of 1 is __, of 2 is __, of 3 is __, of 4 is __, of 5 is __, of 6 is __, if 7 is __, of 8 is __, of 9 is __."

Each blank is to be filled with a numeral of one or more digits, written in decimal notation.

Claude Tardif lui répond.
Parabola problems 2001-04-10
Kathleen pose la question :
  1. Graph each function and state its domain and range. y = 3x2 + 4

  2. For each parabola find: i) the direction of opening
    ii) the coordinates of the vertex
    iii) the y-intercept
    iv) the x-intercepts
    y = x2 + 3

  3. Find the equation of each parabola vertex at (0, -2) and passing through the point (3,7)

Harley Weston lui répond.
12 RTV's 2001-03-27
Christine pose la question :
  1. In order to promote the 2000 Census and encourage participation, 12 Road Tour Vehicles(RTV's) set out from 12 locations across the US for a 10 week promotion tour last February. The RTV's reportedly traveled a total combined distance of 97,911 miles. What was the aberage number of miles traveled in a day by each RTV?

  2. 2. The 12 RTV's mentioned above traveled a total combined distance equivalent to traveling 12.35 times around the earth at the equator. To the closest mile, what is the radius of the earth? Use 3.14 as your approximation for pi.

Leeanne Boehm lui répond.
problem of the week 2001-03-06
Peggy Allan pose la question :
My son has been challenged with "the problem of the week" and I am unable to assist him in finding a reasonable solution.

Problem 1,

Julio needs to draw a line segment 15cm long. He does not have a ruler. He does have some sheets of letter size paper 28 X 21.5 cm. Describe how Julio can use the paper to measur 15 cm.

Claude Tardif lui répond.
P vs NP problem 2001-03-01
Roy pose la question :
What math journals would publish a proposed solution to the P vs NP problem when the work has been done by an amateur mathematician who has no degree in math?
Claude Tardif lui répond.
Books and cars 2001-02-13
Aquilya pose la question :
  1. A pile of books is 96.08cm. If each book is 0.8cm thick. How many books are in th pile?

  2. 2. A car travels 9.84km on 0.6 litres of petrol. How far will the car travel on 3.7 litres of petrol?

Penny Nom lui répond.
A dog and a rabbit 2001-02-09
Josh pose la question :

1. A dog and a rabbit are 160 meters a part for every 9 meters that the dog runs , the rabbit jumps 7 meters. How many meters must the dog run in order to vertake the rabbit???

2. A cars odometer reads 15951 KM. Find the least number of kilomaters to travel until the palindromic number appears???


Leeanne Boehm lui répond.
Bicycles and phone calls 2001-02-08
Sarah pose la question :
  1. A bicycle has a diameter of 66 centimeters. How many times must the tire rotate to travel 1 kilometer?explain answer.

  2. Becky want to make a long distance call to her friend Sarah from a pay telephone.She has $5.00 in change.The call costs $0.90 for the first three minutes and $0.24 for each additional minute.How long can Becky talk to Sarah?

Leeanne Boehm lui répond.
Buckets of golf balls 2001-02-08
A student pose la question :
A bucket containing 40 golf balls weighs 135 ounces. The same bucket with 20 golf balls weighs 75 ounces. What is the weight of the bucket?
Claude Tardif lui répond.
Crossing the dessert 2001-01-29
Zach pose la question :
An Explorer needed to make a 5 day trip across a dessert. Each man with him could carry exactly 3 days food and water. For one man how many men will it take to cross the dessert?
Claude Tardif lui répond.
Some algebra 2001-01-23
Thomas pose la question :
If a is 4 more than the quotient of b and 3, and if b=2, then what is the value of a?
Penny Nom lui répond.
8, 4, 2, 18, 1, 9 2001-01-11
Neyra pose la question :
Place each number below in one of the blanks to create the most meaningful and realistic story possible.
Claude Tardif lui répond.
Derfs, Enajs and Sivads 2001-01-07
John and Norman pose la question :
All Derfs are Enajs. One-third of all Enajs are Derfs. Half of all Sivads are Enajs. One Sivad is a Derf. Eight Sivads are Enajs. The number of Enajs is 90. How many Enajs are neither Derf nor Sivad?
Penny Nom lui répond.
Developing a community garden 2000-10-26
adam pose la question :
Robin's class is developing a community garden. There are 15 students in Robin's class. They volunteer to work in a community garden at various times during the school week. Robin's teacher says it will take about 3 weeks to complete the project if 3 students work 1 hour each day. Some students can work on more than one day. The following table lists the number of students who can work on various days.
.
.
.

Penny Nom lui répond.
Cutting the lawn 2000-10-26
Kacie pose la question :
Ellen can mow a lawn in 2 hours. Mary can mow the same lawn in 1.5 hours. How long would it take them to mow the lawn together?
Penny Nom lui répond.
Working together on a job 2000-10-23
Nicole pose la question :
WORKING TOGETHER ON A JOB: Patrice, by himself can paint 4 rooms in 10 hours. If he hires April to help they can do the same job together in 6 hours. If he lets April work alone , how long will it take her to paint 4 rooms?
Claude Tardif lui répond.
Tapes and CD's 2000-10-22
Arnold pose la question :
Nicole has 25 CDs and tapes altogether. When she tries to pair them up, she has 4 CDs left over. How many tapes does Nicole have?
Penny Nom lui répond.
The perimeter of a football field 2000-10-18
Paige pose la question :
The width of a football field is 67ft greater than the length. The perimeter is 480ft What is the width and length?
Penny Nom lui répond.
Transporting bananas 2000-10-18
Krystie pose la question :
A farm has 45 bananas, a man has to take a truck and transport 15 bananas to a market that is 15 miles away. Every mile he travels, he must eat a banana. I have to get at least one banana to the market
Penny Nom lui répond.
Cutting the cake 2000-10-05
Cherie pose la question :
How can you divide a cake (circle) into 14 pieces by using only 4 straight lines?
Penny Nom lui répond.
Selling chickens 2000-09-12
Rick pose la question :
A man raised chickens. He sold all but 8 of them. The first buyer bought 1/3 of all the chickens + 2/3 of a single chicken. The second buyer bought 1/3 of the remaining chickens + 1/3 of a single chicken. The third buyer bought 1/3 of the remainder + 2/3 of a chicken. How many chickens did the seller own before selling any? All chickens were alive and whole when the buyers received them.
Penny Nom lui répond.
Making milkshakes 2000-09-04
Linda pose la question :
To make a chocolate milkshake, 3 parts chocolate syrup are mixed with 2 parts malt. To make a vanilla milkshake, 2 parts vanilla syrup are mixed with 1 part malt. If equal parts chocolate and vanilla milkshakes are mixed, what is the proportion of malt to milkshake?
Penny Nom lui répond.
A number problem 2000-09-02
Lalita Balu pose la question :
Can you arrange 1234567890 to add up to 100?
Penny Nom lui répond.
Adriana's earnings 2000-08-28
Adriana pose la question :
On Friday Adriana earns half as much as she did on Thursday. On Saturday she earns twice as much as she did on Thursday, if her total for 3 days is $63.00 how much did she earn each day?
Penny Nom lui répond.
Three pattern questions 2000-08-22
Michael Rodriguez pose la question :
I have 3 pattern questions that I need help answering, please.
  1. 6 and 7 = 42
    2 and 5 = 10
    4 and 8 = 8
    5 and 9 = ?

  2. 7 and 5 = 1
    9 and 12 = 3
    10 and 15 = 5
    12 and 16 = ?

  3. 1st = 1
    3rd = DEF
    10th = *
    6th = ?


Claude Tardif lui répond.
Six typists 2000-08-19
Paula Duncan pose la question :
If it takes a typist 4.5 hours to type 860 words, how many hours would it take 6 typist to do 16800 words?
Penny Nom lui répond.
Three consecutive odd integers 2000-08-18
Wallace pose la question :
A six-digit integer XYXYXY, where X and Y are digits is equal to five times the product of three consecutive odd integers. Determine these three odd integers.
Paul Betts lui répond.
Two word problems 2000-08-16
Bridget pose la question :
A whale's head is 72 inches long... its tail is as long as its head plus half the length of its body, and its body is half the entire length. How long is the whale?

Also, An author published a book every two years. When the seventh one was published, the sum of the years of publication was 13,804. In what year was the author forst published?


Penny Nom lui répond.
Rectangles and algebra 2000-06-13
Kirstin pose la question :
A rectangle's length is 4 more than twice its width. The area of the rectangle is 336m squared. What is its length?
Paul Betts and Penny Nom lui répond.
Problems 2000-06-06
Debbie Cummins pose la question :
I am a Mum of a 12 yr.boy needing help with some math problems. I need not only the answers but how it is worked out.
  1. Both the leftmost digit & the rightmost digit of a 4 digit number N are equal to 1. When these digits are removed, the 2 digit number thus obtained is N div by 21 Find N.
  2. Find all 3 digit even numbers N such that 693xN is a perfect square, that is, 693x N = k x k where k is an integer.
.
.
.

Paul Betts and Claude Tardif lui répond.
4 Color map Theorem 2000-06-02
Rick Slen pose la question :
I am challenging my students to find a map that can not be coloured using only 4 colours. I know that it is not possible, but one boy drew a map with a "country" totally surrounding all the others so of course it touched all other colours. How do I explain that this type of map is not permissable?
Denis Hanson lui répond.
The Village of Truth 2000-05-10
Sean Pearson pose la question :
Our teacher gave us a logic problem involving two villages: the village of truth, and the village of lies. The problem is in asking two guards the right question to gain entrance to the fenced compound the villages are in without being shot. Have you heard of this problem ?
Harley Weston lui répond.
Running Through a Train Tunnel 2000-04-01
Eugene Chan pose la question :
A man is running through a train tunnel. When he is 2/3 of the way through, he hears a train that is approaching the tunnel from behind him at a speed of 60 mph. Whether he runs ahead or back, he will reach an end of the tunnel at the same time the train reaches that end. At what rate, in miles per hour, is he running? (Assume he runs at a constant rate.)

I think the answer (12 mph) is wrong. Also, I believe it should read 1/3 of the way through, but don't know how to prove it. Could you come up with some way to prove it, please? I would really appreciate it.


Penny Nom lui répond.
Word problems 2000-03-31
Amy pose la question :
Question:
  1. a north bound train left at noon. four hours later a south bound train left the same station. at 5 o'clook they were 160 miles apart. what was the rate of both if the north bound train was going 20 miles faster than the other one.
  2. clark's final exam was given 5 times the weight of the weight of a weekly test. the avgerage of 15 weekly test was 91. the overall weighted average was 85. what did he make on the final.

Penny Nom lui répond.
Making fruit salad 2000-03-29
A grade 5 student pose la question :
Miss.Muffet males a fruit salad by adding 31/2 pounds of grapes and 4 1/4 pounds of apples to every 2 1/4 pounds of melon. How many pounds of grapes does she use in 50 pounds of fruit salad?
Claude Tardif lui répond.
Sylvester's Problem 2000-03-23
Sheryl Webb pose la question :
I am trying to find a proof of the theorem: Given n points in a plane, there is a line that contains exactly two points.
Chris Fisher lui répond.
The Kennedy Pep Club 2000-03-17
David Grimmer pose la question :
The Kennedy Pep Club rented a bus to take all of its members to a baseball game. The cost per person was to be $18.00. However, those making the trip had to pay $24.00 each because 10 members cancelled at the last minute. How many pep club members took the bus to the game?
Penny Nom lui répond.
Two problems 2000-03-14
Teresa Bostic pose la question :
  1. A man's age at death was 1/29 of the year of his birth. How old was he in 1949?
  2. At a contest, 2 persons were asked their ages. Then to test their ability mathematically, they were asked to give the ages together. One gave 44 and the other gave 1280. The first had subtracted one age from another, and the second had multiplied the two together. What were their ages?

Penny Nom lui répond.
An integer max-min problem 2000-03-13
Paul Servic pose la question :
Maximize Q = xy 2 where x and y are positive integers such that x + y 2 = 4
Penny Nom lui répond.
A goat problem 2000-03-10
Nancy pose la question :
A farmer has a fenced-in, circular field with an area of about one acre. A goat in the field is tethered to one of the fence posts with a rope which gives the goat approximately one-half acre of grazing area. To the nearest foot, how long is the rope?
Chris Fisher lui répond.
The isoperimetric theorem 2000-02-24
Raj Bobal pose la question :
How can you prove Mathematically that the maximum area enclosed by a given length is a circle?
Chris Fisher lui répond.
Jogging up a hill 2000-02-17
Aaron Williams pose la question :
A man jogs down the hill at 6 miles per hour and back up at 4 miles per hour. The total time that he travels is 5/4 hours. What is the total distance that he jogged.

The solution is supposedely 3 miles, but i believe that it is 6. Can you help me? Please.


Claude Tardif lui répond.
Weighing bales 2000-02-15
Thinh Than pose la question :
You have 5 bales of hay. and they were weighed but they didn't weigh them individually, they were weighed in pairs. The pairs were 1&2, 1&3, 1&4, 1&5, 2&3, 2&4, 2&5, and so on. The weights of the pairs were 80,82,83,84,85,86,87,88,90, and 91. Can you tell me how much the bales weigh individually.
Claude Tardif lui répond.
Tennis doubles 2000-02-04
Brittany Allinson pose la question :
Cheri, Beth and Jacinta are daughters of Mr. Sullivan, Mr. Marchand, and Mr. Benoit. Four of these people are playing tennis doubles. Mr. Benoit's daughter and Mr. Sullivan are partners. Cheri's father and Mr. Marchand's daughter are also partners. There aren't any father/daughter combinations. Who is Cheri's father?
Penny Nom lui répond.
Filbert Family Circus 2000-02-04
Sarah pose la question :
As Clyde moves his broom around the circus ring, he thinks that he has finally found a job where he can make a clean sweep of things. Clyde is sweeping the ring where the lions perform in the Filbert Family Circus. The ring is 76 feet across and Clyde is using a broom 3 feet wide. He starts at the outside edge and works his way to the middle, making circles around the ring. After sweeping 3/4 of the ring, Clyde sees the lions coming with their trainer and scurries out of the ring. How many trips around the ring did he make?
Penny Nom lui répond.
100% on two tests 2000-02-01
Craig and Chelsea Bruzzone pose la question :
A class of 35 students took a math test and a science test. 12 students got 100% on the math test. 9 students got 100% on the science test. There were 19 students who made less than 100% on both tests. How many students made 100% on both tests?
Penny Nom lui répond.
Mark's life 2000-01-30
Jean and Larry Brandemuehl pose la question :
Mark passed 1/6 of his life in childhood, 1/12 in youth, and 1/7 more as a bachelor. Five years after his marriage, there was born a son who died four years before his father, at half his father's (final) age. How old was Mark when he died?
Penny Nom lui répond.
Can't make an equation! 2000-01-30
Maggie Clarke pose la question :
An estate is to be distributed among the wife, 3 children and 2 grandchildren. The children will each receive 2x as much as each grandchild, and the wife will receive 4x as much as each child. If the estate amounted to $115,000, how much will each person receive?
Penny Nom lui répond.
Two problems 2000-01-29
D. J. Anthony pose la question :

Hi, I am taking a course "math for elementary teachers" and I have two problems.

  1. How thick is a sheet of paper in your textbook.
  2. A little island has a population of 1,000 people. It doubles every 30 years. What will the population be in 30 years?, in 60 years?, when will it be over one million?

Peny Nom and Claude Tardif lui répond.
Word problem 2000-01-24
April pose la question :

Ok, my algerbra teacher gave me this problem and by just looking at it I can tell what the answer is but he wants me to show how I got the answer in an equation form.

The tempature at 7am on a cold day was -4 degrees Celcius. At 3pm the tempature was 1 degree Celcius. Write and solve an equation to find out how many degrees the tempature rose between 7am and and 3pm.


Penny Nom lui répond.
A three digit number 2000-01-13
Manali Shah pose la question :
My son is in 5th grade, he has a math problem. There is three digit number, which is greater than 500, can be divided by 7,9 and 11, but cannot be divided by 2,4,6, and 5.
Harley Weston lui répond.
How many coins is one calculator? 2000-01-09
Mandy Brockmann pose la question :
Tom weighed 1 pen and his calculator with 4 coins. Then he weighed his calculator and 3 pens with 12 coins. How many coins is one calculator?
Claude Tardif lui répond.
Passing trains 1999-12-10
Nancy pose la question :
Two trains, each of 80 cars, must pass on a single track which has a deadend siding. How can they pass if the siding can only hold a locomotive and 40 cars?

I do not understand this...help. It will be due monday. I thought it would be simple if the siding could hold 80 cars.
Penny Nom lui répond.

Camels and bananas 1999-12-02
Marie Rich pose la question :
Corey Camel's harvest, worth its weight in gold, consists of 3000 bananas. The market place where the stash can be cashed in is 1000 miles away. However, Corey must walk to the market, and can only carry up to 1000 bananas at a time. Furthermore, being a camel, Corey eats one banana during each and every mile she walks (so Corey can never walk anywhere without bananas). How many bananas can Corey get to the market?
Claude Tardif lui répond.
Get rich quick 1999-12-02
Holly Hutson pose la question :
If one cent were placed in an investment that doubles in value every day, what would be the value of the investment at the end of 30 days?
Penny Nom lui répond.
An area problem 1999-11-29
Vicky Birch pose la question :
The length of a rectangle is three times it's breadth. If the length were 6 meters less, and the breadth were 6 meters more, the rectangle would be a square. Make a mathematical model and solve the resulting equation to find the breadth of the original rectangle. What is the area of the square?
Penny Nom lui répond.
Two candles 1999-11-24
Skip Simpson pose la question :
You have two candles the same length. They are lit at the same time. One burns down in 4 hours; the other in 5 hours. How long does it take before one candle is three times the length of the other candle?
Walter Whiteley lui répond.
A goofy clock 1999-11-20
Kate pose la question :
While repairing a watch, a jeweler removed the hands and inadvertently replaced the hour hand on the min. spindle and vice versa. he set the hands to read 2:00pm, which was the correct local time when I picked up the watch. A few minutes later, I noticed that the hands were taking goofy positions. What was the first time thereafter that the watch would show the correct local time?
Chris Fisher lui répond.
A matching quiz 1999-11-20
William J. Ricciardi pose la question :
I gave a matching quiz the other day and one of my students got all 9 incorrect. That got me thinking......What is the probability that someone could get all 9 questions incorrect?
Peny Nom lui répond.
Selecting some players 1999-11-20
Korbin Brown pose la question :
Roger Craig, during his term as team manager of the San Francisco Giants, received a strange communication from the team general manager, Al Rosen. Mr. Rosen told him to select 25 players according to this formula: 1/2 of the team had to be outfielders and infielders 1/4 of the team had to be starting pitchers 1/6 of the team had to be relief pitchers 1/8 of the team had to be catchers Roger was a bit confused by Al's request, yet complied anyway. How did he do it?
Claude Tardif lui répond.
The sixth game 1999-11-16
Stephanie Sprunger pose la question :
Janice scored 18,21,27,16,and 19 points in five basketball games. How many points must she score in the next game to raise her average to 22 points per game?
Penny Nom lui répond.
Working Backwards 1999-10-16
Linda pose la question :
I am having problems finding examples of problems that require "Working Backwards" used as a strategy for solving. We are required to give a presentation on Monday, October 25, 1999 in our school districts math class. We are trying to become better problem solvers and how to teach problem solving in the elementary classroom. Help! I can't find anything in my web searches.
Penny Nom lui répond.
A donkey and his carrots - part 2 1999-10-02
Sarah Klink and Brenda Gamble pose la question :
Does anyone know the solution of the donkey who had to carry 3000 carrots to the market which was 1000 miles away? The donkey can only carry 1000 carrots at a time and he eats one carrot every mile he walks but this is only when he is carrying carrots. How many carrots can get to the market with the donkey carrying them?
Claude Tardif lui répond.
Jose and Arthur 1999-09-26
Joel Hammer pose la question :
Jose can run around the track in 40 seconds. Arthur runs with Jose but in the opposite direction. They meet every 15 second. How long will it take Arthur to make one trip around the track?
Denis Hanson lui répond.
Bob and his dad 1999-09-14
Yvette pose la question :
"Bobs dad is 27 yrs older then Bob. The sum of their ages 5 yrs ago was 45 yrs. How old is Bob now?"
Penny Nom lui répond.
Bales of hay 1999-09-13
Ivy pose la question :
You are given 5 bales of hay. Two bales are weighed at a time, which equal the following weights:
110, 112, 113,114,115,116,117,118,120,121. What does each individual bale weigh?

Harley Weston lui répond.
Using Factoring in Problem Solving 1999-09-09
Lori pose la question :
I have a problem with a problem. The Problem is....The sum of the squares of two consecutive positive even integers is 340. Find the integers.
Penny Nom lui répond.
The three jugs problem 1999-09-02
Kent Lane pose la question :
I wonder if you could help me figure out this secondary Discrete Math Problem. I cannot figure out where this comes from.

Here's the question:

You have three containers. Container 1 is a three (3) liter container. Container 2 is a five (5) liter container. Container 3 is an eight (8) liter container that is full of liquid. The goal is to get 4 liters in one of the containers.

Stipulations: There are no marks on the containers to measure out the liquid.

All you know is that 1 is 3 l., 2 is 5 l., and 3 is 8 l. full of liquid.
Chris Fisher lui répond.

The Bellhop Problem 1999-08-29
Gerard O'Neill pose la question :
Three fellows going to a Math Conference book into a motel. "That will be $30.00" says the bellhop. Each fellow gives $10.00 and they go off to their room. The manager enters and says "That was a $25.00 room. Go and give them $5.00 back."
The bellhop heads off but thinks....."how am I going to split $5.00 between 3 fellows? Hey I will keep two dollars and give each guy a dollar." He does just that.......each fellow now paid $9.00 and the bellhop kept two. 3 X 9= 27 plus the bellhops two = $29.00 Where is the missing dollar?

Harley Weston lui répond.
Crossing the Bridge 1999-08-27
Debbie Walter pose la question :
If you have four people who need to cross a bridge in the dark with only one flashlight and only two of them can cross at a time and their speeds of crossing are as follows:
  • one person can cross it in one minute
  • one person can cross it in two minutes
  • one person can cross it in five minutes
  • and the slowest person can cross it in ten minutes
what is the shortest amount of time it would take to get all four across the bridge?

Penny Nom lui répond.
The three cousins 1999-06-01
Irena pose la question :
I have three cousins on my dad's side. The product of their ages is 84. Next year the youngest will be 1/4 the age of the middle cousin. In 2 years from now, the oldest will be twice the current age of the middle. What is the age of my oldest cousin?
Harley Weston lui répond.
Three Daughters 1999-05-18
Norm Campbell pose la question :
I recently received a beat up copy of the three daughters question. I have only some of the question. It ends after the statement "the oldest one looks....... It does not finish. Is there any chance that someone can finish it off for me?
Rick Seaman and Harley Weston lui répond.
Missing the boat 1999-05-11
Judith Moe pose la question :
Our daughter is in Grade 3 and seems stubbornly determined NOT to learn how to add and subtract. She's been assessed as quite intelligent in reading and writing,...Do you know of any alternative approaches to teaching/learning math that are proving useful in such circumstances.
Diane Hanson lui répond.
Bill and Sam at the Casino 1999-04-23
Rham Stewart pose la question :
Bill and Sam went off to bet at the casino. Each started with the same number of dollars. At the end of the first hour, Bill had won 20$ and sam had lost 20$. At the end of the second hour, BIll had lost two thirds of his money, and Sam had won the same amount that Bill had lost. At that point, sam had four times as much money as BIll. How much did each one start with?
Penny Nom lui répond.
Shopping at Wegman's 1999-04-22
Stan pose la question :
Joanne, Steve, Pat, Alice, Joan, and Bill go to Wegman's at the same time. Joanne buys 2 gal of milk, 1 dozen oranges, 8 apples, and 2 lb. of ground beef, paying a total of $13.24. Steve buys 3 qts. of milk, 5 lbs. of ground beef, 10 lb. of potatoes, and 2 bags of mixed vegetables, paying a total of $16.95. Pat buys 3 gal. of milk, 2 dozen oranges, 1 dozen apples, 5 lb. of potatoes, and 5 bags of mixed vegetables, paying a total of $25.09.
....
Find the cost of: 1 qt. of milk, one orange, one apple one lb. of ground beef, one lb. of potatoes, and one bag of mixed vegetables.

Penny Nom lui répond.
A ladder problem 1999-04-22
Michael Blade pose la question :
There is a cube box 3feet x 3feet x 3ft resting against a vertical wall on level ground. Resting against the outside corner of the box is a ladder 10 feet tall, this ladder is of course resting on the ground but also against the outside corner of the box and rests on the wall.

The question- the ladder is divided into two unequal section bounded by the box to the ground and the box to the wall. what are those dimensions?
Penny Nom lui répond.

The birthday problem 1999-04-19
Gordon Cooke pose la question :
How do I explain the rapid rise in the probability that at least two people in a group of n have the same birthday. We have derived the formula for p(n) and have graphed it and have seen how the results are counter-intuitive. At around n=23 p(n)=.5 and at n=50 p(n) is very close to 1. It does not help to simplify the problem (eg use months instead of days) because then our intuition does correspond more closely to reality. Is there some way we can see how the probabiltiy of a "collision" increases with n? It makes me think of data storage problems and hash tables in computer science.
Harley Weston lui répond.
Extra point questions 1999-04-15
W Troy Council pose la question :
My teacher has given me 5 extra point questions. I have figured out two, but i need a little assistance with 3 others, could you help me with:
  1. A stablehand agreed to work for 1 year. At the end of that time, she was to receive $240 and one horse. After 7 months she quit the job, but still received the horse and $100. What was the value of the horse?

  2. If the roots of x2 + bx + c are pi and square root 2, then find "b" and "c."

  3. ...

Penny Nom lui répond.
Two contest problems 1999-04-14
Bruce Baldwin pose la question :
We have students that are preparing for the Pythagoras Contest which is a nation wide Grade 6 math challenge.

In the preparatory tests we have run into several questions that we can not understand.

Is there anyone who can help us?

  1. If 1 * 9 = 0, 9 * 8 = 72, 2 * 8 = 9, then 9 * 9 = ?

  2. ...

Judi McDonald and Walter Whiteley lui répond.
A word problem 1999-03-25
Anna Gariss pose la question :
A second number is 4 less than a first number. The product of the second number and 3 more than the first number is 18. Find the pair of numbers.
Jack LeSage and Penny Nom lui répond.
A field trip 1999-03-18
Jennifer Rudd pose la question :
This word problem is driving me nuts! I could really use your help. Its a secondary level question. Here it is:

A group of students planned to charter a bus for a school field trip. Each student was to share the $810 cost equally. However, 3 people were unable to go and this increased the share of each person by $3. How many went on the trip?

Thanks!
Jack LeSage and Penny Nom lui répond.

Four Corners Maths Problem 1999-02-16
Helen Williams pose la question :
I am currently a student teacher in the UK and I have to write a 1000 word report on the following maths problem which I am completely stuck on! PLease HELP!! Choose and 3 by 3 section of the hundred square. Add the total of the four corners. How many different groups of four numbers can you find that add up to that number? eg,
123
111213
212223
Total of 4 corners add up to 48.

Adding 2, 13, 22, 11 also make 48 etc..

How many different groups of 4 numbers would add up to 48?

How would these results compare with thoses obtained from a 3 by 3 square in which the numbers are consective? eg,
123
456
789

PLEASE HELP AS I AM COMPLETELY STUCK? WHY DO ALL THESE DIFFERENT WAYS ADD UP TO THE SAME NUMBER??
Harley Weston lui répond.

Word problems 1999-02-09
Brian Rodriquez pose la question :
Please answer these problems with a formula. Also explain in English step by step how these problems should be solved. I know the answer I just don't know how the answer was achieved Thank you very much for trying to help
  1. A ski lift carries a skier up a slope at the rate of 120 feet per minute and he returns from the top to the bottom on a path parallel to the lift at an average rate of 2640 feet per minute. How long is the lift if the round trip traveling time is 20 minutes?
  2. An airplane on a search mission flies due east from an airport, turns and flies due west back to the airport. The plane cruises at 200 miles per hour when flying east, and 250 miles per hour when flying west. What is the farthest point from the airport the plane can reach if it can remain in the air for 9 hours?

Jack LeSage and Penny Nom lui répond.
Some Word Problems 1998-12-17
Jennifer Rudd pose la question :
To Whom It May Concern,
I'm having some difficulty with these word problems. Maybe you could help. Thanks.
  1. A matte of uniform width is placed around a painting so that the area of the matted surface is twice the area of the painting. If the outside dimensions of the matte are 40cm and 60cm, find the width of the matte.

  2. The Joneses start out A 1520km car trip to Walker Park. On the first day they cover 960km. On the second day they complete the trip, but a rainstorm causes them reduce their average speed by 10km/h.If the 2-day trip took a total of 20 h, what was the average speed on each day?

  3. Granny stood up at her grandson's wedding reception and announced " My age now is a perfect square and it is equal to the difference between the square of my grandson's father's age and the square of his mother's age. Come to think of it the difference my age and the square of my grandson's age is seven times the age of his mother, my daughter in law." The grandson's wife remarked to her new husband," That means the difference between the squares of our ages is three times the age of your father!" How old was the bride?

  4. The volume of a retangular box 4cm high is 144 cubic cm. If the perimeter of the base is 24cm, find the dimensions of the box.
P.S. the first two questions are the most important ones that need to be solved.

Thanks for your help!!
Jack LeSage and Penny Nom lui répond.

Problem Solving 1998-10-15
Pamela Fisher pose la question :
Can you give me a comprehensive list of problem solving stategies. I teach grade one in a K to 8 school and we are working on improving problem solving at all grade levels. I have heard that there is a list of various strategies that we could adapt to different grade levels. Any help you give me would be appreciated.
Thank you. Pamela Fisher

Walter Whiteley lui répond.
Students and Lockers 1998-10-02
Mike pose la question :
There is a row of 1000 lockers.
There is a line of 1000 students.

Student number 1 starts at the first locker and opens all 1000. Student number 2 starts at the second locker and closes every other one. Student number 3 starts at the third locker and goes to every third one, closing the open ones and opening the closed ones. Student number 4 does the same with every fourth locker and so on down the line... After all 1000 students have gone how many lockers are open and which ones are they?

Please help! There is proboly a simple solution but we couldnt figure it out for the life of us. Please let us know how you solve it.
Patrick Maidorn and Penny Nom lui répond.

The Birthday Problem 1998-06-12
Josh Skolnick pose la question :
if you are at a party what is the least amount of people that have to be there to have at least a 50% chance of having 2 people with the same birthday? and how do you get the answer thank you in advance

josh
Harley Weston lui répond.

Logic and Matrix Instruction 1998-04-24
Robin Booker pose la question :
I need assistance with instruction strategies to teach the construction of a matrix, solving a logic problem. Providing instruction in the construction of a simple matrix , no problem. However, I stumpted on this one.

Five players were chosen as All Stars at the basketball banquet. Based on the following clues, find the player's name, team, uniform color and number of points scored....
Harley Weston lui répond.

Seed Problem 1998-03-26
Jody A. Johnson pose la question :
Seed Problem: The height of an amazing plant grown from a seed varies linearly with the time it has been in the ground. After six days it is 6cm tall and after 60 days it is 15.8m (1580 cm) tall.
  1. Write the particular equation giving the height as a function of time.
  2. Find the intercepts and explain them.
  3. What would be the height in one year?
  4. How long would it take for the plant to grow to a height of 1km?
I'm having a problem with this equation. Could you please help. Thank you.

Penny Nom lui répond.
Guess and Check 1997-11-25
Don Ramey pose la question :
Hope you can help !!!! my daughter is in the 4th grade.. she has brought home a homework paper and the subject is problem solving. she does not understand what is expected of her. I have tried to help, but I do not understand either.

She is to use the Guess and check Strategy.

Ben knows 100 of his neighbors by name. Ten are fish. The rest are frogs and turtles. He knows the names of twice as many turtles as frogs. How many turtles does he know by name.?

Please help by explaining the guess and check strategy for a problem like this.
Diane Hanson lui répond.

A donkey and his carrots 1997-01-28
Emily Lind pose la question :
There is a donkey who carries carrots. A farmer has 3,000 carrots to carry to the market. The market is 1,000 miles away. The donkey can only carry 1,000 carrots at a time and he eats 1 carrot every mile that he walks but this is only when he is carrying carrots. How many carrots can the farmer get to market by having the donkey carrying them?
Penny Nom lui répond.
Smith, Rodriguez and Jones 1996-11-07
Rafayel Ambartsumyan pose la question :
On a train, Smith, Rodriguez, Jones are the fireman, brakeman, and engineer, but not in that order. Also aboard the train are three businessman who have the same names, a Mr. Smith, a Mr. Rodriguez, and a Mr. Jones. ..... Who is the engineer?
Penny Nom lui répond.
Will this always yield a palindrome? 1996-08-28
Andy Golden pose la question :
My friend Justin Skywatcher, said that when his children were in 6th grade, they were taught that if you take any number, reverse it and add the two together, a palindrome will result. If not, continue performing the above operations, and a palindrome will eventually result. Will this always yield a palindrome?
Chris Fisher lui répond.
Grade nine problem solving 1996-03-11
Azmat Hussain pose la question :
Can math problems be actually fun and engaging?
Diane Hanson lui répond.
 
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