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32 articles trouvés pour ce sujet.
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.
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 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.
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.
A rotating schedule for a softball team 2016-03-25
Caroline pose la question :
I couldn't find a similar question, hopefully there isn't one!

I have a softball team of 18 people (7 girls and 11 boys), but am limiting each game to 13 players (6 girls and 7 boys). The season is 10 games long. How do I create a rotating schedule which allows members to play evenly? I tried separating the boys and girls to create rotation for each but I got confused. Some are unable to attend all games but for the simplicity of a rotation schedule can you please help?

Robert Dawson and Victoria West lui répond.
The sides of a triangle 2016-03-15
Hitarth pose la question :
Why we cannot construct a triangle ofngiven sides 5cm,5cm and 10cm?
Penny Nom lui répond.
Can you construct a regular 21-gon? 2016-03-08
Peter pose la question :
hi, i know that if i use a compass to draw a circle, i can use the same setting to mark 6 intervals along the circle circumference, how would i go about marking out 21 equally spaced points around the circumference?

if there an online calculator i can us, or some other interesting trick?



Robert Dawson 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.
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 :
S x U - T = 44
T - U x S = 36
U + T - S = 7
U x U / S = 4

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 six team track schedule 2014-09-15
Paul pose la question :
I need to make a six (6) team track schedule. It needs to be five (5) triangular (3 team) meets with each team playing each team twice
Victoria West 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.
An isosceles tiangle 2013-06-16
Izzy pose la question :
what's the height of an isosceles triangle which has a base of 50 m, and both of the other sides are 25 m?
Penny Nom lui répond.
How to find the base length of a isosceles triangle if only the sides are given? 2012-04-25
aqilah pose la question :
how to find the base length of a isosceles triangle if only the sides are given?
Chris Fisher lui répond.
A mythical soccer ball 2011-10-27
Joel pose la question :
We've been working on this problem diligently and can't seem to come up with the answer book's answer. We think it may be wrong, yet want to check it with an expert. Here goes. The school's new soccer balls are covered with 64 regular hexagonal panels. Each hexagon measures 2 inches between opposite corners and 1.5 inches between opposite sides. What is the total surface area of the soccer ball?
Robert Dawson and Lorraine Dame lui répond.
A four digit number 2011-09-16
gina pose la question :
i am having a hard time figuring this out.. i believe the answer is 3105 but the 0 is throwing me off... i am a 4 digit number between 3100 and 3200, none of my digits are even, the sum of my digits is 9, the largest digit is in the ones place, what number am i ??
Penny Nom lui répond.
2x = 2+2x 2011-01-15
james pose la question :
2x=2+2x can you help me find what x epauls?
Penny Nom 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.
An impossible isosceles triangle 2010-01-31
Hailey pose la question :
An isosceles triangle has one angle that measures 50 degrees and another that measures 70 degrees. Why can't this triangle be drawn?
Penny Nom lui répond.
Triangles on a base of 2.4 meters 2009-12-26
Allan pose la question :
Please,How do I calculate the height of a triangle when I only know the width of the base line,It is 2.4 mtrs.
Thankyou very much.

Penny Nom lui répond.
The integral of a to power x squared 2009-04-28
JIM pose la question :


Robert Dawson lui répond.
An impossible trig problem 2009-03-14
Alisha pose la question :
If csc theta = 3 and sec theta = square root of 3, what are the values of tan theta and cos^2 theta?
Harley Weston lui répond.
9(d+5)=3(d-3)+6d 2008-06-19
davontay pose la question :
Harley Weston 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.
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.
An isosceles triangle...with 2005-04-23
Shannon pose la question :
If given an isosceles triangle...with
Is there any possible way to do this, without knowing a side, if so, please explain in detail.

Chris Fisher lui répond.
A schedule for 6 teams 2004-09-10
Greg pose la question :
I have a schedule I need to make of 6 teams. They must play each other once however no team can be the away team twice in a row. There must be 3 home games and 3 away games for each team.
Penny Nom lui répond.
Integrating e^sin(x) 2004-08-04
A student pose la question :
I need to know that how to solve the integral " e^sin x",
Harley Weston lui répond.
The area of a lot 2004-03-09
Dave pose la question :

If our lot is 192.71 x 138.79 x 158.74 x 103.08

Question is what percentage of an acre is our lot?

Penny Nom 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.



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