Respostas

2014-02-25T20:48:27-03:00
F-32 = C
  9       5

F-32 = 27
  9       5

5(F-32) = 27 . 9
5F - 160 = 243
5F = 243 + 160
5F = 403
F = 403 
       5
F = 80 , 6 ºF
1 5 1