Question

se 40%de certa quantia corresponde a R$ 80,00, qual é essa quantia?
P:ci/100

Answer 1

40%=80
100=x
40x=8000
x=8000÷40
x=200

Answer 2

$\frac{40x}{100} = 80$
$\frac{40}{100} . x = 80$
40x = 8000
x = $\frac{8000}{40}$
x = 200