Question

calculati valoarea expresiei:
2x+3y/3y daca x/y=1,5
va rog repede​

Answer 1

$\frac{2x+3y}{3y}$=$\frac{2x}{3y}$ +$\frac{3y}{3y}$

$\frac{3y}{3y} =1$

$\frac{2x}{3y} =$ $\frac{2}{3}$·$\frac{x}{y}$=$\frac{2}{3}$·$1,5$=$\frac{2}{3}$·$\frac{3}{2}$=1

$\frac{2x+3y}{3y}$=1+1=2