document.write( "Question 164304: A rectangle has a length that is 6ft more than the width.Its perimeter is 100 ft. What is the area? \n" ); document.write( "
Algebra.Com's Answer #121049 by algebrapro18(249)\"\" \"About 
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A rectangle has a length that is 6ft more than the width.Its perimeter is 100 ft. What is the area?\r
\n" ); document.write( "\n" ); document.write( "l = 6+w
\n" ); document.write( "l+w = 100\r
\n" ); document.write( "\n" ); document.write( "now substituting l into the second equation
\n" ); document.write( "l + w = 100
\n" ); document.write( "(6+w) + w = 100
\n" ); document.write( "6 + 2w = 100
\n" ); document.write( "2w = 94
\n" ); document.write( "w = 47\r
\n" ); document.write( "\n" ); document.write( "now substituting back into the first equation
\n" ); document.write( "l = 6 + w
\n" ); document.write( "l = 6 + 47
\n" ); document.write( "l = 53\r
\n" ); document.write( "\n" ); document.write( "so now we know what the length and with are and we can find the Area of a rectangle using the formula A = lw. I will leave this for you to do.
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