Question

3/8 = 15/x x=?

x/5 = 12/15 x=?
21/28 = 30/x x=?
75/45 = x/21 x=?
5/6 = 8/x x=?​

Answer 1

a) x=40

b) x=3

c) x=40

d) x=35

e) x=9.6

Explanation:

1. Cross multiply.

2. Divide.