SOLUTION: if a/b=3 and b/c=7. then what is the ratio of a-b/b-c. I started to do guess and check and I think I solved it but want to make sure. A=210 B=70 C=10 Ratio 7:3

Algebra ->  Proportions -> SOLUTION: if a/b=3 and b/c=7. then what is the ratio of a-b/b-c. I started to do guess and check and I think I solved it but want to make sure. A=210 B=70 C=10 Ratio 7:3       Log On


   

Question 808210: if a/b=3 and b/c=7. then what is the ratio of a-b/b-c.

I started to do guess and check and I think I solved it but want to make sure.
A=210
B=70
C=10
Ratio 7:3
Answer by JBarnum(2146) About Me  (Show Source):