Respostas

2014-05-26T12:55:03-03:00
C/100 = (F-32)/180
30/100= F-32/180
30/10= (F-32)/18
270/90= (5F-160) /90
270=5F-160
270+160=5F
5F=430
F=430/5
F=86ºC
2014-05-26T12:55:08-03:00
30° c em °F
c° / 5 + ° F-32/9 .: 30/5= °F- 32/9 .: 6/1= °F -32/9 
°F-32= 45
F= 54+ 32
F= 86° F