Question

PORCENTAGEN 9) calcule o que se pede De 250 1% 3% 10% 40%

Answer 1

1% de 250 =
250 x 0,01 = 2,50
3% de 250 =
250 x 0,03 = 7,50
10% de 250 =
250 x 0,10 = 25,00
40% de 250 = 
250 x 0,40 = 100,00

Answer 2

Lembre-se que, $n~\%=\dfrac{n}{100}$.

Assim,

$1~\%~\text{de}~250=\dfrac{1}{100}\cdot250=2,5$

$3~\%~\text{de}~250=\dfrac{3}{100}\cdot250=7,5$

$10~\%~\text{de}~250=\dfrac{10}{100}\cdot250=25$

$40~\%~\text{de}~250=\dfrac{40}{100}\cdot250=100$