Question

calcule as porcentagens correspondentes
a)3% de 400
b)70% de 48
c)48% de 200
d) 9% de 50​

Answer 1

Olá!

Resposta:

400 --- 100

× 3

× 100 = 1ØØ

× = 12ØØ

400

3 ×

1200

X = 12

==========

48 --- 100

× 70

× 100 = 1ØØ

× = 33,6Ø

48

× 70

3360

X = 33,6

==========

200 --- 100

× 48

× 100 = 1ØØ

× = 96ØØ

200

× 48

9600

X = 96

==========

50 --- 100

× 9

× 100 = 1ØØ

× = 4,5Ø

50

× 9

450

X = 4,5