Question

Calcule:
a) 1% de R$350,00.

b) 4% de R$35,00

c) 10% de 1400eleitores

d) 15% de 1400 eleitores

e) 20% de 3450 litros de água

f) 25% de 48 carros
​

Answer 1

Explicação passo-a-passo:

a) 350 - 100%

x - 1 %

100x = 350

× = 350

------------ = 3,50

100

b) 35 - 100%

x - 4%

100x = 140

x = 140

------------- = 1,40

100

c) 1400 - 100%

x - 10%

100x = 14000

x= 14000

----------------- = 140

100

d) 1400 - 100%

x - 15%

100x = 21000

x = 21000

--------------- = 210

100

e) 3450 - 100%

x - 20%

100x = 69000

x = 69000

------------------ = 690

100

f) 48 - 100%

x - 25%

100x = 1200

x = 1200

------------- = 12

100