Question

resolva as porcentagens:
17% de 1580,00
6,5 de 79

Answer 1

basta aplicar regra de três :

$\frac{17}{100} = \frac{x}{1580} \\ 1580 \times 17 = 100x \\ x = \frac{26860}{100} \\ x = 268.6$

$\frac{6.5}{100} = \frac{x}{79} \\ 100x = 79 \times 6.5 \\ x = \frac{513.5}{100} \\ x = 5.135$