Question

Как это решать (х+2у)16 _______ =0.7 28х+44у

Answer 1

$\frac{(x+2y)*16}{28x+44y} = 0,7;$
$(x+2y)*16 = 0,7 * (28x + 44y);$
$16x + 32y = 19,6x + 30,8y;$
$32y - 30,8y = 19,6x - 16x;$
$1,2y = 3,6x;$
$\frac{x}{y} = \frac{1,2}{3,6};$
$\frac{x}{y} = \frac{1}{3}.$