Question

x para 15 e 4 para 12,valor de x

Answer 1

Resposta:

$\dfrac{x}{15}=\dfrac{4}{12}\\ \\ multiplica~~cruzado\\ \\ 12x=4.(15)\\ \\ 12x=60\\ \\ x=\dfrac{60}{12}\\ \\\\ \boxed{ x=5}$