Posted by Catherine on Tuesday, June 25, 2013 at 3:05pm.
Alec, Kate and Ketan are roommates who share living expenses in a ratio of
k: 2a: 5k
respectively. If their total expenses each month equal $1400, how much is Ketan's monthly contribution?
(A) 280/2a+6k
(B) 700/2a+6k
(C) 1400k/2a+6k
(D) 2800a/2a+6k
(E) 7000k/2a+6x
Please help! I have no idea how to do this.

Math  Steve, Tuesday, June 25, 2013 at 3:35pm
k+2a+5k = 1400
6k+2a = 1400
1400/(2a+6k) = 1
multiplying by 5k, we get
7000k/(2a+6k) = 5k
So, (E)
To check, plug in something simple like k=100 and see what you get.
Answer This Question
Related Questions
 Math:  Fred’s net monthly income is $3933.12 Rental: $700 Car Payment: $363.75 ...
 math  You spend $685 a month on living expenses. If your monthly income is $...
 math check answers  1. A surplus is _____. (1 point) when you spend more than ...
 check my work  The table below shows your expenses. Use the information in the ...
 algebra  summer begins from june 1st until august 31st. i can make $6.00 per ...
 math  Don signed an apartment lease for &500 per month. his has a budget of $...
 accounting  Net income is $44,400. Administrative expenses are $5,500 and ...
 Accounting  Mushroom Company, a retail company, has two departments, "G" and "S...
 Introduction to Computers  Tell Bill how to do the following tasks: What ...
 Math  Don signed an apartment lease for $500 per month. He has a budget of $120...
More Related Questions