Question

15% de 42=

15 = 42

100 1

15 x 42 = 630 = 6,30

100 x 1 100

Resolva as porcentagens abaixo:

a) 8% de 38=

b) 5% de 12=

c) 4% DE 18=

d) 18% de 82=​

Answer 1

b) 5% de 12= Resposta:

15% de 42= 6.3

a) 8% de 38=  3.04

b) 5% de 12= 0.6

c) 4% DE 18= 0.72

d) 18% de 82=​ 14.76

Explicação passo-a-passo:

Answer 2

Olá.

→ Contas ↓

a) 8% de 38 ;

8/100 × x/38

100x = 8 × 38

100x = 304

x = 304 ÷ 100

x = 3.04

b) 5% de 12 ;

5/100 × x/12

100x = 5 × 12

100x = 60

x = 60 ÷ 100

x = 0.6

c) 4% de 18 ;

4/100 × x/18

100x = 4 × 18

100x = 72

x = 72 ÷ 100

x = 0.72

d) 18% de 82

18/100 × x/82

100x = 18 × 82

100x = 1476

x = 1476 ÷ 100

x = 14.76

→ Sequência de Respostas ↓

a) 3.04

b) 0.6

c) 0.72

d) 14.76

>>espero ter ajudado

>>Bons estudos!

Att: SoldadoSccp10