Question

Stiind ca x/3 = 4/y aflati 2xy-10.Ofer coronita

Answer 1

$\frac{x}{3} = \frac{4}{y} \\ \\ xy=3*4=12 \\ \\ 2xy-10=2*12-10 \\ \\ 2xy-10=24-10 \\ \\ 2xy-10=14$

Answer 2

x/3 = 4/y=>x=4 și y=3;. 2xy-10=2•3•4-10=24-10=14