Question

Calcule as porcentagens.
a) 20% de 200.
b) 5% de 60.
c) 50% de 400.

Answer 1

Olá.

a) 20% de 200 ;

20/100 × x/200

100x = 20 × 200

100x = 4000

x = 4000 ÷ 100

x = 40

b) 5% de 60 ;

5/100 × x/60

100x = 5 × 60

100x = 300

x = 300 ÷ 100

x = 3

c) 50% de 400 ;

50/100 × x/400

100x = 50 × 400

100x = 20000

x = 20000 ÷ 100

x = 200

A) => x = 40

B) => x = 3

C) => x = 200

>>espero ter ajudado

>>Bons estudos!

Att: SoldadoSccp10

Answer 2

Resposta:

A) 40

B) 3

C) 200

Espero ter ajudado!

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