Question

Calcule, quanto é? 35% de 150?

Answer 1

150=100%
75=50%
15=10%
7,5=5%
15%=22,5  [10%+5%] (15+7,5)
30%=45     [15%+15%] (22,5+22,5)
35%=52,5  [30%+5%]  (45+7,5)

Answer 2

$150 = 100 \\ x = 35 \\ \\ entao \: temos \: \\ 100x = 5250 \\ x = 5250 \div 100 \\ x = 52.5 \\ \\ 35\% \: de \: 150 = 52.5$