Question

Determine as porcentagens em casa caso: a) 30% de 800 b) 25%128

Answer 1

a) 800×30÷100= 240.

b) 128×25÷100= 32.

Answer 2

Olá...

a) 30% de 800

100%-------800

30%--------x

100x = 30.800

100x = 24 000

x = 24 000/100

x = 240

b) 25% de 128

100%---------128

25%----------x

100x = 25.128

100x = 3 200

x = 3 200/100

x = 32

Espero ter ajudado.