Question

Daca : x supra y = 2 supra 3,atunci 6x + y supra 9x + 3y

Answer 1

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

$3x = 2y$

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

$\frac{6x + y}{9x + 3y} = \frac{6 \times \frac{2y}{3} + y}{9 \times \frac{2y}{3} + 3y} = \frac{4y + y}{6y + 3y} = \frac{5y}{9y} = \frac{5}{9}$