document.write( "Question 443220: \r
\n" ); document.write( "\n" ); document.write( "A rectangle has a perimeter of 30 feet.
\n" ); document.write( "Express the area A of the rectangle as a function of the length x of one of its sides.
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Algebra.Com's Answer #306091 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
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\n" ); document.write( "A rectangle has a perimeter of 30 feet.
\n" ); document.write( "Let x and y represent the width and length respectively
\n" ); document.write( " 2*y + 2*x = 30ft
\n" ); document.write( " 2(y+x) = 30ft
\n" ); document.write( " y + x = 15ft
\n" ); document.write( " y = 15ft-x
\n" ); document.write( "Area(rectangle) = L*W = (15-x)x
\n" ); document.write( " A = x(15ft-x)\r
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\n" ); document.write( "\n" ); document.write( "ewatrrr@aol.com
\n" ); document.write( "private/pay tutoring Inquiries only, please.
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