Respostas

2013-08-14T12:48:18-03:00
Temos que:

Tc = 2Tf

Tc/5 = Tf - 32/9

2Tf/5 = Tf - 32/9

18Tf = 5Tf - 160

13Tf = - 160

Tf = -160/13

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Tf = -12,3°F
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Tc/5 = -12,3 - 32 / 9

Tc/5 = -44,3/9

9Tc = 5*-44,3

Tc = -221,5 / 9

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Tc = -24,6°C
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