Question

numele rationale x, y si z verifica relatia......... va rog raspundeti
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Answer 1

Răspuns:

(x-z)/(y-z) = 11

Explicație pas cu pas:

(x-y)/(z-y) = -10 <=>

x-y = -10(z-y) <=>

x-y = -10z+10y <=>

10z = 11y -x => z = (11y-x)/10

(x-z)/(y-z) = [x- (11y-x)/10] /[y- (11y-x)/10] =

= (10x-11y+x)10 : (10y-11y+x)/10 =

= (11x-11y)/10 ·10/(x-y) = 11(x-y) /(x-y) = 11 =>

(x-z)/(y-z) = 11