document.write( "Question 631365: Ruth is having hardwood floors installed in her living room. The cost for the material is $2840 plus an installation charge of $1.90 per square foot. If the total cost for the material plus installation is $5120, determine the area of her living room. \n" ); document.write( "
Algebra.Com's Answer #397527 by tutor_paul(519)\"\" \"About 
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Define the following variables:
\n" ); document.write( "Total Cost T=5120
\n" ); document.write( "Total Installation Cost = I
\n" ); document.write( "Materials Cost M=2840
\n" ); document.write( "Area of Living Room = A
\n" ); document.write( "Installation Cost/ft^2 C=1.9\r
\n" ); document.write( "\n" ); document.write( "-------------------\r
\n" ); document.write( "\n" ); document.write( "The total cost for the job (T) can be expressed by the following equation:
\n" ); document.write( "\"T=I%2BM\"
\n" ); document.write( "\"5120=I%2B2840\"
\n" ); document.write( "\"I=2280\"\r
\n" ); document.write( "\n" ); document.write( "--------------------\r
\n" ); document.write( "\n" ); document.write( "Now that you know the total installation cost, you can apply the following formula to determine the area of the living room (A).\r
\n" ); document.write( "\n" ); document.write( "\"I=CA\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Substitute previous found value for I:
\n" ); document.write( "\"2280=1.9A\"
\n" ); document.write( "\"A=2280%2F1.9\"
\n" ); document.write( "\"highlight%28A=1200+ft%5E2%29\"\r
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\n" ); document.write( "Good Luck,
\n" ); document.write( "tutor_paul@yahoo.com
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