Question

1) Calcule as seguintes porcentagens:
a) 30% de R$ 450,00
b) 2,5% de R$ 600,00.
c) 60% de 3000 dias.
d) 5% de 50 L.​

Answer 1

VAMOS LÁ !!!

A)

450 ------------------------100%

  x  -------------------------30%

100x = 13500

x = 13500/100

x = 135

B)

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

  x   ----------------------2,5%

100x = 1500

x = 1500/100

x = 15

C)

3000 dias ----------------------------100%

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

100x = 180000

x = 180000/100

x = 1800

D)

50l -----------------------100%

 x   ---------------------------5%

100x = 250

x = 250/100

x = 2,5 litros

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ESPERO TER AJUDADO

Answer 2

a)

450-----------100%

x ------------ 30%

100x= 450.30

100x= 13 500

x= 13 500/100

x= R$135

b)

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

x------------2,5%

100x= 600.2,5

100x=1500

x=1500/100

x= R$15,00

c)

3000---------100%

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

100x=3000.60

100x=180000

x=180000/100

x=1800 dias

d)

50l---------100%

x ----------5%

100x= 50.5

100x=250

x=250/100

x= 2,5 L