Respostas

2014-06-01T10:49:35-03:00
Tf-32/9=Tc/5 Tf-32/9=35/5 5tf-160=315.
5tf=475. Tf=95



B) tf=2tc. Tc/5=2tc-32/9. 9tc=10tc-160. Tc=160
1 5 1