Question

1. Stiind ca 2x+3y/ 5x-y = 8/3 , calculati valoarea raportului x/y
Urgent!!!

Answer 1

$\frac{2x+3y}{5x-y} = \frac{8}{3} .$
Se aplica produsul mezilor = produsul extremilor astfel :
(2x+3y)*3=(5x-y)*8 <=>6x+9y=40x-8y <=> 17y=34x => y=2x => x/y=1/2

Answer 2

1. 3(2x+3y) = 8(5x-y) ;
6x+9y=40x-8y ;
9y+8y=40x-6x;
17y=34x;
x/y=17/34
x/y=0,5 
SUCCES!!!