Question

Daca x/y=2/3 atunci 3x+2y/y-x este:

Answer 1

$\frac{x}{y}=\frac{2}{3}\ \textless \ =\ \textgreater \ \frac{x}{2}=\frac{y}{3}=k =\ \textgreater \ x = 2k \ si \ y=3k =\ \textgreater \ \frac{3x+2y}{y-x}=\frac{3*2k+2*3k}{3k-2k} = \\ = \frac{6k+6k}{k}=\frac{12k}{k} = 12$
Valoarea raportului 3x+2y/y-x este 12.