Question

elabore uma situação problema de decrecimo percentual

Answer 1

$\large\boxed{\begin{array}{l}\sf Um\,produto\,custa\,R\ 25,00\,e\,agora\\\sf passou\,a\,custar\,R\ 15,00. De\,quanto\,foi\\\sf o\,decr\acute escimo\,percentual?\\\underline{\boldsymbol{soluc_{\!\!,}\tilde ao}}\\\rm decr\acute escimo=\dfrac{valor\,anterior-valor\,atual}{valor\,anterior}\cdot100\%\\\\\rm decr\acute escimo=\dfrac{25-15}{25}\cdot100\%\\\\\rm decr\acute escimo=\dfrac{10}{\diagdown\!\!\!\!\!25}\cdot\diagdown\!\!\!\!\!\!10\diagdown\!\!\!0\%\\\\\rm decr\acute escimo=40\%\end{array}}$