Question

se 9 metros de tecido custam 12,00 determine quanto custara 21 metros?

Answer 1

9m———12r
21m———x
9.x=21.12
x=252/9
x=R$28,00

Answer 2

Oie, tudo bom

Resposta: custaria R$28,00.

9/21 = 12/x

9x = 12 . 21

9x = 252

x = 252/9

x = 28

Att. NLE Top Shotta