Question

calcule o valor de X nas seguintes proporções:

Answer 1

A)
35/25=30/x
7/5=30/x
7x=150
x=150/7
B)
2x/15=2/3
6x=30
x=5

Answer 2

A) 35/25 =30/x 
 7/5 = 30/x 
 x=21,42
B) 2x/15 = 6/9
2x/15 = 2/3
x=5