Jawabanmu

2014-02-20T22:06:17+07:00
A - b = 12 , a/b = 5/2 , c = 1/4

a - b = 12
a = b + 12 ..(1)

a/b = 5/2
a = (5/2)(b)
a = 5b/2 ..(2)

a = b + 12
5b/2 = b + 12
5b = (b + 12)(2)
5b = 2b + 24
3b = 24
b = 8

a = b + 12
a = 8 + 12
a = 20

jadi, nilai a=20 , b=8 , dan c= 1/4