Respostas

2013-03-26T22:11:48-03:00

10-50t=0

-50t=-10

t=1/5

 

5+30t=0

30t=-5

t=-5/30 = -1/6

 

 

2013-03-26T22:41:50-03:00

10-50t=0

-50t=-10

t=1/5 

5+30t=0

30t=-5

t=-5/30 = -1/6