the current temperature in smalltown is 20 °F th...

asked Jan 12, 2017 in Mathematics by jojo13
The current temperature in smalltown is 20 °F this is 6 degrees less than twice the temperature thst that it was six hour ago what was the temperature is smalltown six hout ago

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1 Answer

answered Jan 12, 2017 by anonymous
T = temperature that it was 6 hours ago

20=2t-6 \\ 20+6=2t-6+6 \\ 26=2t \\  \frac{26}{2} = \frac{2t}{2} \\ 13=t

The temperature in Smalltown 6 hours ago was 13° F.

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