Question

Dupa o reducere de 10% pretul unui obect a devenit 54 let . Pretul initial era.... vreau doar raspunsul , nu si rezolvarile ;)

Answer 1

$x\to pretul \ initial \\\\ 10\% \ din \ x \to \frac{10}{100}*x= \frac{1}{10}*x \to \frac{x}{10} -reducerea \\\\ x^{(10}-\frac{x}{10}= \frac{10x-x}{10}\to\frac{9x}{10}-noul \ pret \\\\\\ \frac{9x}{10}=54 \\\\ x=\frac{10*54}{9} \\\\ x=10*6 \\\\ \boxed{x=60 \ lei}$

Answer 2

 [tex] x\;\cdot\;\frac{100-10}{100}=54(lei) \\ \rightarrow\;x=\frac{54*10\not0}{9\not0}=540:9=... lei\;;[/tex]