Question

calcule as porcentagens a)8% de R$ 1400 b) 120% de R$ 4000,00 c) 15% de R$ 5000,00​

Answer 1

Explicação passo-a-passo:

a)

100% ———— 1400

8% —————— x

100x = 8.1400

100x = 11200

x = 11200/100

x = 112

b)

100% ————— 4000

120% ————— x

100x = 120.4000

100x = 480000

x = 480000/100

x = 4800

c)

100% ————— 5000

15% —————— x

100x = 15.5000

100x = 75000

x = 75000/100

x = 750