Respostas

2014-02-18T19:16:56-03:00
Resposta

Formual

Tf = 2Tc


Tf - 32 /9 = Tc/5

2Tc - 32 /9 = Tc/5

5 . (2Tc - 32) = 9Tc

10Tc - 160 = 9Tc

10Tc - 9Tc = 160

Tc = 160ºC

Aí está 160ºC
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