Question

1. Determine o valor de x nas proporções: a)×/4 =9/12 b)15/3=10/× c)6/9=×/15 d)7/× =14/12 e)2×/5= -24/15​

Answer 1

Resposta:

a) 3

b) 50

c) 10

d) 6

e) -4

Explicação passo a passo:

a) x = 4*9/12

x = 36/12

x = 3

b) 15*10/3 = x

x = 150/3

x = 50

c) 6*15/9 = x

x = 90/9

x = 10

d) 7*12 = 14x

7*12/14 = x

x = 84/14

x = 6

e) 2x = -24*5/15

2x = -120/15

x = -120/15*2

x = -120/30

x = -4