The heat loss of a glass window varies jointly as the windows area and the difference
Chapter 6, Problem 37(choose chapter or problem)
The heat loss of a glass window varies jointly as the windows area and the difference between the outside and inside temperatures. A window 3 feet wide by 6 feet long loses 1200 Btu per hour when the temperature outside is 20 colder than the temperature inside. Find the heat loss through a glass window that is 6 feet wide by 9 feet long when the temperature outside is 10 colder than the temperature inside.
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