document.write( "Question 850655: the heat loss of a glass window varies jointly as the window's area and the difference between the outside and the inside temperatures. a window 6 feet wide by 3 feet long loses 900 Btu per hour when the temperature outside is 15 degrees colder than the temperature inside. find the heat loss through a glass window that is 3 feet wide by 9 feet long when the temperature outside is 19 degrees colder than the temperature inside. \n" ); document.write( "

Algebra.Com's Answer #512365 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
the heat loss of a glass window varies jointly as the window's area and the difference between the outside and the inside temperatures.
\n" ); document.write( " a window 6 feet wide by 3 feet long loses 900 Btu per hour when the temperature outside is 15 degrees colder than the temperature inside.
\n" ); document.write( " :
\n" ); document.write( "Find k of the equation
\n" ); document.write( "6*3*15*k = 900
\n" ); document.write( "270k = 900
\n" ); document.write( "k = 900/270
\n" ); document.write( "k = 3.33
\n" ); document.write( ":
\n" ); document.write( "\"find the heat loss through a glass window that is 3 feet wide by 9 feet long when the temperature outside is 19 degrees colder than the temperature\"
\n" ); document.write( "HL = 3*9*19*3.33
\n" ); document.write( "HL = 1710 btu heat loss
\n" ); document.write( ": \n" ); document.write( "

\n" );