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Ratio Question

by blunted
Tags: ratio
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blunted
#1
Jan7-13, 10:11 AM
P: 23
1. The problem statement, all variables and given/known data

Calculate: (3 a + 3 b)/(a - b) If a/b = 2/5

No attempts, I don't know how to solve this.

Help?
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tiny-tim
#2
Jan7-13, 10:30 AM
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hi blunted! welcome to pf!
Quote Quote by blunted View Post
a/b = 2/5
hint: so a = ?
blunted
#3
Jan7-13, 10:36 AM
P: 23
Oh my god :D

Thanks for the hint and the welcome :)

blunted
#4
Jan7-13, 11:05 AM
P: 23
Ratio Question

K + l + m = 34.
K/l = 1/4
l/m = 1/3

l = ?

Is it 8 ?
tiny-tim
#5
Jan7-13, 11:25 AM
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maybe it is and maybe it isn't
show your calculations!
(same hint as before, btw)


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