Question

o desconto de 15% sobre 18 conta pfv?

Answer 1

$\dfrac{100}{15} =\dfrac{18}{X}$
$100X = 15*18$
$100X = 270$
$X =\dfrac{270}{100}$
$X = 2,7$

18 - 2,7 = 15,3

Resposta : 2,7 R$

Answer 2

x=18*15/100
x=270/100
x=2,7
    
Resposta: 2,7