Question

Calcule o valor de x nessa proporção? 40/8 = x/3

Answer 1

$\sf\dfrac{40}{8}=\dfrac{x}{3}$

$\sf 8x=40\cdot3$

$\sf 8x=120$

$\sf x=\dfrac{120}{8}$

$\boxed{\boxed{\sf x=15}}$