Homework Help: math

Posted by Al on Tuesday, April 24, 2012 at 12:04pm.

The ratio of A's stickers to B's stickers was 3:4.
After A bought another 18 stickers and B lost 10 stickers, the ratio became 3:2. Find the number of stickers both of them had at first.

math - Steve, Tuesday, April 24, 2012 at 12:09pm
a/b = 3/4
(a+18)/(b-10) = 3/2

4a = 3b
2(a+18) = 3(b-10)

2a+36 = 4a - 30
2a = 66
a = 33
b = 44

check:
33/44 = 3/4
(33+18)/(44-10) = 51/34 = 3/2
math - Al, Tuesday, April 24, 2012 at 12:15pm
Thank you, Steve!
math - Steve, Tuesday, April 24, 2012 at 12:23pm
aw, shucks <scuff><scuff>

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