Question

EXERCÍCIOS
1) Resolva as proporções:
a) X = 15
8 20
b) 6 = 9
x 12
c) 4 = x
6 15
d) 5 = Z
10 x
e) 5 = 2x
6
3​

Answer 1

Resposta:

A=

x=15

8=20

20x=120

X=120÷20

X=6

B=

6=9

X=12

9x=72

X=72÷9

X=8