Question

Решите уравнение
8/9=Y/4
1,8/12=7/Z

Answer 1

$frac{8}{9} = frac{y}{4}$
$y=frac{8}{9}*4$
$y=frac{32}{9}$
$y=3frac{5}{9}$

$frac{1.8}{12} = frac{7}{z}$
$z=7: frac{1.8}{12}$
$z=7* frac{12}{1.8}$
$z= frac{7*2}{0.3}$
$z= frac{14*10}{3}$
$z= frac{140}{3}$
$z=46 frac{2}{3}$