Question

Calcule o valor de x

Answer 1

Explicação passo-a-passo:

$\frac{4}{8} = \frac{y}{y + 6} = \frac{5}{x} \\ \\ \frac{5}{x} = \frac{4}{8} \\ \\ 4x = 40 \\ x = \frac{40}{4} = 10 \\ \\ \frac{y}{y + 6} = \frac{4}{8} \\ \\ 8y = 4(y + 6) \\ 8y = 4y + 24 \\ 8y - 4y = 24 \\ 4y = 24 \\ y = \frac{24}{4} = 6$