Respostas

2014-02-23T22:03:52-03:00
Resposta

Tf = Tc/5

Tf - 32 = 9/5.Tc

Tc /5 - 32 = 9/5.Tc

Tc - 32 = 9Tc

Tc - 9Tc = 32

-8Tc = 32

Tc = -32/8

Tc = -4ºF

Letra E
2 5 2