document.write( "Question 143956: It takes 150 square feet of wood flooring to cover a 13 by 11 foot room, counting waste. At this rate, how much flooring, to the nearest foot, would it take to cover a 15 by 20 foot room? \n" ); document.write( "
Algebra.Com's Answer #104793 by ankor@dixie-net.com(22740)\"\" \"About 
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It takes 150 square feet of wood flooring to cover a 13 by 11 foot room, counting waste. At this rate, how much flooring, to the nearest foot, would it take to cover a 15 by 20 foot room?
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\n" ); document.write( "You could us a ratio equation:
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\n" ); document.write( "Let x = amt of flooring required for a 15 by 20 ft room
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\n" ); document.write( "Actual area of the 13 by 11 ft room
\n" ); document.write( "13 * 11 = 143 sq ft
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\n" ); document.write( "Actual area of the 15 by 20 ft room
\n" ); document.write( "15 * 20 = 300 sq ft
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\n" ); document.write( "\"150%2Fx\" = \"143%2F300\"
\n" ); document.write( "Cross multiply:
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\n" ); document.write( "143x = 150 * 300
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\n" ); document.write( "143x = 45000
\n" ); document.write( "x = \"45000%2F143\"
\n" ); document.write( "x = 314.6853 ~ 315 sq ft of flooring required for a 15 by 20 ft room \n" ); document.write( "
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