Question

Un obiect costa 12 lei.Care va fi pretul dupa o scumpire cu 10%?

Answer 1

[tex]scumpirea : \frac{10}{100} *12 = 1,2~lei\\ pretul~final : 12 + 1,2 = 13, 2~lei[/tex]

Answer 2

$\frac{10}{100}* 12= \frac{120}{100} = \frac{x}{y} \frac{12}{10} = 1,2 lei$
12+1,2=13,2 lei