Question

If a:b = 3:5 and a:c = 5:7, then what is the value of b:c? Please Help And Please Explain!

Answer 1

I think b:c=7:9 because a in the a:b is 3 and then a in the a:c increases by 2 to get 5. So, if you look at a:b and a:c the difference is 2.

Answer 2

Ah Thank you!:) i really appreciate it:)

Answer 3

You're welcome

Answer 4

its 25:21. a/b=3/5 so b/a=5/3 and a/c=5/7
so multiplying (b/a)(a/c) gives you b/c which is (5x5)/(7x3)=25/21

Answer 5

That makes More sense Thank You:) I Really Appreciate it:)