







Comparing two job offers 
20201117 

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. 





The distance between opposite vertices in an octagon 
20201114 

joe pose la question : If the dimension from one flat part of an octagon to opposite flat is 500 mm what is the largest diameter (point to point) of the octagon? Harley Weston lui répond. 





Golf for 28 golfers over 4 days 
20201114 

David pose la question : hi, I was wondering if you could help me with a golf draw, I have 28 players and wish to play a four round foursomes over 4 days
I would like to minimize the amount of games that they play together. Harley Weston lui répond. 





Divisibility by 8 
20201110 

Sariyah pose la question : Of the positive integers between 1000 and 10000 that are divisible by 8, how many have a 5 in the hundreds place? Harley Weston lui répond. 





The dimensions of a rectangle 
20201102 

Chie pose la question : A rectangular piece of property has an area of 987m² and a perimeter of 136m. Find its LENGTH and WIDTH. Penny Nom lui répond. 





Running around a circular track 
20201031 

kaylee pose la question : Keiko and Kendra are training for an international track competition. Kendra is running one lap on the outside of a circular track with a diameter of 1000 feet. Her constant rate of speed is 12 mi/h. Keiko is running one lap on the outside of a nearby circular track with a diameter of 1125 feet. She is also running at 12 mi/h. Find the time, in minutes, each runner needs to complete one lap. Harley Weston lui répond. 





Equivalent fractions 
20201031 

Lexi pose la question : Which of the following fractions is equivalent to 84 / 90?
A. 14 / 15
B. 42 / 45
C. 14 / 15
D. 42 / 45 Penny Nom lui répond. 





An analytic proof that a quadrilateral is a parallelogram 
20201026 

Apollo pose la question : Prove analytically that if ABCD is a parallelogram in which points P and Q trisects the diagonal AC, then BPDQ is a parallelogram. Penny Nom lui répond. 





Two equations with fractions 
20201022 

mia pose la question : I am supposed to look for x and y. my teacher didn't explain very well. please help : ((
2x  y = 5
x/4 + y/3= 2 Penny Nom lui répond. 





2xy = 2x*2y 
20201022 

Amber pose la question : Um i am wondering what this equation equals. Thank you for your time and help.
2xy=2x*2y Penny Nom lui répond. 





Solving an inequality 
20201018 

nunya pose la question : 3(4 + 2n) > 2n  16 Penny Nom lui répond. 





A word problem with three variables 
20201018 

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 
20201001 

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=5x9 Harley Weston lui répond. 





A combination lock 
20200929 

Rourke pose la question : how many possible combinations are there in a 4 digit lock with 6 numbers
which can repeat themselves. Penny Nom lui répond. 





Factoring an interest formula 
20200929 

Kenneth pose la question : Hello
P + Pr has a common factor of P so it can be expressed as P(1 + r) after the P is factored out..
How does the "P" get in front of (1 + r)?
P/P + Pr/P = 1 + r What step is used to show that P is added in front of (1 + r)?
I thank you for your reply. Harley Weston lui répond. 

