Respostas

2013-12-09T15:27:26-02:00
Aplique a formula
C/5= F-32/9, onde c- celsius e f-fahrenheit

C. 1/5C-32
-- =. ---------
5. 9
Multiplica cruzado
9C= 5/5C - 160
9C-C =-160
8C=-160
C= -20