Question

faça o cálculo:
(A)9% de 100=
(B)20% de 500=
(C)10% de 200=
(D)5% de 80=​

Answer 1

$a) \: \frac{9}{100} . \frac{100}{1} = \frac{900}{100} = 9$

$b) \: \frac{20}{100} . \frac{500}{1} = \frac{10000}{100} = 100$

$c) \: \frac{10}{100} . \frac{200}{1} = \frac{2000}{100} = 20$

$d) \: \frac{5}{100} . \frac{80}{1} = \frac{425}{100} = 4.25$