Question

Determine o valor de x de modo que as sentenças representem proporçoes 6/9=30/x

Answer 1

6/9=30/x

9/6=x/30

x=30 *9/6 = 45

Answer 2

6/9 = 30/x
6x = 30 . 9
6x = 270
x = 270/6
x = 45