Question

Resolva as promoções a) 2/4=3/x b) 4/12=x/21 c) 9/4=x/18 d)x/6=3/9 e)a/8=6/3​

Answer 1

Resposta:

Explicação passo a passo:

a

2/4=3/x

2x=3.4

2x=12

x=12/2

x=6

b

4/12=x/21

12x=4.21

12x=84

x=84/12

x=7

c

9/4=x/18

4x=9.18

4x=162

x=162/4

x=81/2

d

x/6=3/9

9x=3.6

9x=18

x=18/9

x=2

e

a/8=6/3

3a=6.8

3a=48

a=48/3

a=16