Question

Daca x supra = 25%, atunci a) y-x supra y =....%

dau coroana, va rog repede

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

$25\%=\dfrac{\ \ 25^{(25}}{100}=\dfrac{1}{4}\\ \\ \\ \dfrac{x}{y}=\dfrac{1}{4} \Rightarrow \dfrac{x-y}{y}=\dfrac{1-4}{4} \Rightarrow \dfrac{x-y}{y}=\dfrac{-3}{4}\Big|_{\cdot(-1)} \Rightarrow \dfrac{y-x}{y}=\dfrac{^{25)}3}{\ 4}=\dfrac{75}{100}=75\%$