Respostas

2013-05-23T23:13:57-03:00

8% de 32

 

32--------100%

8---------- x%

 

32x=800%

x=800/32

 

x=25%

 

Portanto, 8 alunos representam 25% da sala.

2 4 2
2013-05-23T23:14:12-03:00

32 alunos = 100%

8 alunos = x%

 

32x = 100 * 8

x = 800 / 32

 

x= 25%

3 5 3