Question

Determine o valor de x, para que se tornem equivalentes:
a)2/3 = x/30
b)36/40 = x/20
c)x/5 = 9/45
d)27/36 = x/4

Answer 1

2/3=x/30

60=3x

3x=60

x=20

36/40=x/20

9/10=x/20

180=10x

x=18

x/5=9/45

x/5=1/5

x=1

27/36=x/4

3/4=x/4

3=x

x=3