Question

1-Encontre:
a) 32% de 900
b) 21% de 3.200
c) 16% de 400
d) 24% de 1.600
e) 7% de 800
f) 5% de 750
g) 2% de 500

Answer 1

Olá!

Resolução:

a)32% de 900

32%--------100%

 x------------900

100%x=32×900

100%x=28800

100%x=28800/100

 x=288

Resposta:288

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b)21% de 3.200

21%--------100%

x-----------3.200

100%x=21×3.200

100%x=67200

100%x=67200/100

 x=672

Resposta:672

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c)16% de 400

16%--------100%

x-----------400

100%x=16×400

100%x=6400

100%x=6400/100

 x=64

Resposta:64

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d)24% de 1.600

24%--------100%

x------------1.600

100%x=24×1.600

100%x=38400

100%x=38400/100

  x=384

Resposta:384

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e)7% de 800

7%--------100%

x----------800

100%x=7×800

100%x=5600

100%x=5600/100

 x=56

Resposta:56

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f)5% de 750

5%--------100%

x----------750

100%x=5×750

100%x=3750

100%x=3750/100

 x=37,5

Resposta:37,5

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g)2% de 500

2%--------100%

x----------500

100%x=2×500

100%x=1000

100%x=1000/100

 x=10

Resposta:10

 Espero ter ajudado! =)