Resposta:

A)12,5%

B)55%

C)62,5%

D)2,5%

Verified answer

Resposta:

Explicação passo a passo:

a)  1/8

1/8 = x/100

8x = 1.100

8x = 100

x = 100/8

x = 12,5%

b)  11/20

11/20 = x/100

20x = 11 . 100

20x = 1100

x = 1100/20

x = 55%

c)  5/8

5/8 = x/100

8x = 5.100

8x = 500

x = 500/8

x = 62,5%

d)  3/16

3/16 = x/100

16x = 3.100

16x = 300

x = 300/16

x = 18,75%

e)  1/40

1/40 = x/100

40x = 1.100

40x = 100

x = 100/40

x = 2,5%