Question

ME AJUDEM URGENTEEEE

Answer 1

Resposta:

Explicação passo-a-passo:

Olá bom dia.

Faça a regra de 3:

$\frac{x}{y} e \frac{z}{v} = xv=yz$

a) 15x  = 90 -> x = 90/15 = 6

b) 30x = 360 -> x = 360/30 = 12

c) 5x = 45 -> x = 45/5 = 9

d) 15x -30 = 5x -> 10x = 30 -> x = 3

Answer 2

Resposta:

15/30 e 3/6

10/30 e 2/6

5/45 e 1/9