Relax

Respuesta :

[tex]70\% \ of \ x =56 \\ \\ \frac{70}{100} \cdot x = 56 \\\\ \frac{7}{10} \cdot x=56 \\ \\ x=56 : \frac{7}{10} \\ \\ x=56 \cdot \frac{10}{7} \\ \\ x= \frac{560}{7} =80[/tex]