Question

co b) 15% de 120 c) 35% de 400 d) 40% de 600 e) 60% de 900​

Answer 1

Resposta:

b) 18.

c) 140.

d) 240.

e) 540.

Explicação passo a passo:

> Utilizando A Regra de Três:

b) 15% de 120

120------------------100%

x---------------------15%

100x = 120 × 15

100x = 1800

x = 1800 ÷ 100

x = 18

c) 35% de 400

400------------------100%

x-----------------------35%

100x = 400 × 35

100x = 14000

x = 14000 ÷ 100

x = 140

d) 40% de 600

600--------------------100%

x-----------------------40%

100x = 600 × 40

100x = 24000

x = 24000 ÷ 100

x = 240

e) 60% de 900

900------------------100%

x-----------------------60%

100x = 900 × 60

100x = 54000

x = 54000 ÷ 100

x = 540