document.write( "Question 502413: how can I know how many gallions of paints to cover my living room that measures 30ft by 18ft? \n" ); document.write( "
Algebra.Com's Answer #338878 by ankor@dixie-net.com(22740)\"\" \"About 
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how can I know how many gallons of paints to cover my living room that measures 30ft by 18ft?
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\n" ); document.write( "Find the area of the painted area. If you are covering all 4 walls and the ceiling is 8 ft high:
\n" ); document.write( "2(30*8) + 2(18*8) =
\n" ); document.write( "2(240) + 2(144) = 768 sq/ft,
\n" ); document.write( "if you include the ceiling, add another 30*18 = 540 sq/ft
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\n" ); document.write( "Of course it will probably be a little less because of doors and windows, but this will give you a good idea
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\n" ); document.write( "Paint cans tell you how many sq ft it will cover, usually around 450 sq/ft
\n" ); document.write( "Divide the total area you are going to paint by that amt, round it up to the nearest gallon.
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\n" ); document.write( "If you are changing the color drastically you may need to paint it twice.
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