Respostas

  • Usuário do Brainly
2013-10-30T00:41:23-02:00
250- 100%
 x   - 16%
x= 40
Espero ter lhe ajudado' :)
2 3 2
  • Usuário do Brainly
2013-10-30T07:54:34-02:00
250 ratos brancos----100%
x ratos brancos-------16%

100x = 250*16
100x = 4000
x = 4000/100
x = 40