Question

5 calcule

a) 15% de 60

b)20% de 30

c)10% de 75

d) 1% de 800​

Answer 1

Resposta:

a) x = (60 x 15)/100 = 900/100 = 9

b) 30----------100%

x------------20%

100x=600

x=600/100

x= 6

20% de 30 é 6

c) 7,5

d) 1% = 1 / 100

800 x 1 / 100 =  

800 / 100 =  8