Respostas

2014-07-15T22:51:53-03:00
F=C+72

C/5=(F-32)/9

Substituindo F na formula

C/5=(C+72-32)/9
C/5=(C+40)/9
9C=5C+200
4C=200
C=200/4
C=50° C #-

F=C+72
F=50+72
F=122° F #
3 5 3