Dau 20 puncte!!!

( 1 - [tex] \frac{3}{4} [/tex] ) • x = [tex] \frac{1}{2} ^{3} [/tex] • y , Aflați raportul [tex] \frac{y}{x} [/tex]


Răspuns :

(1/4) *x=(1/8) *y
inmultim ambii termeni cu 8
2x=y
impartim relatia cu x≠0
2=y/x
y/x=2
(1-3/4)x=(1/2)^3y
(4-3)/4 ×x=1/8 × y
1/4× x=1/8×y|4
x=y/2
2x=y
y=2x |x
y/x=2