Question

6) calcule as porcentagens

a) 36% de R$ 650,00

b) 45% de R$ 360,00

c) 25% de R$ 420,00

d) 84% de R$ 275,00​

Answer 1

Oie kk

A)

650 ÷ 100 = 6,5

6,5 × 36 = 234

B)

360 ÷ 100 = 3,6

3,6 × 45 = 162

C)

420 ÷ 100 = 4,2

4,2 × 25 = 105

D)

275 ÷ 100 = 2,75

2,75 × 84 = 231

Answer 2

Resposta:

a) R$234,00

b) R$162,00

c) R$105,00

d) R$231,00

Explicação passo-a-passo:

a)

$\frac{36}{100} \times 650 \\ \frac{36}{10 } \times 65 \\ \\ 3.6 \times 65 = 234$

b)

$\frac{45}{100} \times 360 \\ \frac{45}{10 } \times 36 \\ \\ 4.5 \times 36 = 162$

c)

$\frac{25}{100} \times 420 \\ \frac{25}{10} \times 42 \\ \\ 2.5 \times 42 = 105$

d)

$\frac{84}{100} \times 275 \\ 0.84 \times 275 = 231$

Espero ter ajudado :)