Question

3) Calcule as porcentagens abaixo:

a) 15 % de R$ 250

b) 50 % de R$ 500

c) 30 % de R$ 300

d) 25 % de R$ 380

e) 75 % de R$ 800​

Answer 1

A 37,5
B 250
C 90
D 95
E 600

Answer 2

Explicação passo-a-passo:

a)

$15\%250$

$\frac{15}{100} \times 250$

$\frac{3}{20} \times 250$

$\frac{3}{2} \times 25$

$\frac{75}{2}$

$\red{\boxed{\blue{\boxed{\green{\boxed{37.5}}}}}}$

b)

$50\%500$

$\frac{50}{100} \times 500$

$50 \times 5$

$\red{\boxed{\blue{\boxed{\green{\boxed{250}}}}}}$

c)

$30\%300$

$\frac{30}{100} \times 300$

$30 \times 3$

$\red{\boxed{\blue{\boxed{\green{\boxed{90}}}}}}$

d)

$25\%380$

$\frac{25}{100} \times 380$

$\frac{1}{4} \times 380$

$\red{\boxed{\blue{\boxed{\green{\boxed{95}}}}}}$

e)

$75\%800$

$\frac{75}{100} \times 800$

$75 \times 8$

$\red{\boxed{\blue{\boxed{\green{\boxed{600}}}}}}$

ATT:ARMANDO