Question

Calcule x, y e z, sabendo-se que $\frac{x}{18}$=$\frac{x}{22}$=$\frac{z}{30}$ e x + y + z = 840

Answer 1

$\boxed{ \frac{x+y+z}{18+22+30} = \frac{840}{70} = 12}$

$\frac{x}{18} = 12$

$\boxed{x = 216}$

$\frac{y}{22} = 12$

$\boxed{y=264}$

$\frac{z}{30} = 12$

$\boxed{z=360}$

Espero ter ajudado. :))