February 22, 2017

Homework Help: math/physics

Posted by Samuel on Friday, April 26, 2013 at 6:48pm.

Estimate the percentage savings in the fuel bill if the thermostat is set back from 68 degrees F to 50 degrees F for 12 hours of the day, and left at 68 degrees F for the other 12 hours, assuming an outside temperature of 15 degrees F all day.

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