Question

Daca extremii unei proportii sumt 2,5 si 3,6,iar un mez este 1,25, celalalt nez este:

Answer 1

$\frac{2,5}{1,25}= \frac{x}{3,6} \\ \\ x= \frac{9}{1,25} \\ \\ x=7,2$

produsul mezilor=produsul extremelor

Answer 2

$\frac{a}{b} = \frac{c}{d} \ \textless \ =\ \textgreater \ ad=bc$
$\frac{2,5}{1,25} = \frac{x}{3,6} \ \textless \ =\ \textgreater \ x= \frac{2,5*3,6}{1,25} ;x= \frac{9}{1,25} ;x=7,2$