document.write( "Question 72671: A rectangle scale used to weigh an elephant seal is 8 feet longer than it is wide. The area of the scale is 33 square feet. What are the dimensions of the scale? \n" ); document.write( "
Algebra.Com's Answer #51954 by Tutor Online(2)\"\" \"About 
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A rectangle scale used to weigh an elephant seal is 8 feet longer than it is wide. The area of the scale is 33 square feet. What are the dimensions of the scale?\r
\n" ); document.write( "\n" ); document.write( "Let width be x feet
\n" ); document.write( "Then length would be x+8 , as its given scale is 8 feet longer then its width\r
\n" ); document.write( "\n" ); document.write( "Area of rectangle is given by\r
\n" ); document.write( "\n" ); document.write( "Area= length * width
\n" ); document.write( "Area of scale = x(x+8) sq feet\r
\n" ); document.write( "\n" ); document.write( "x ( x+8 ) = 33\r
\n" ); document.write( "\n" ); document.write( "x^2 +8x -33 =0\r
\n" ); document.write( "\n" ); document.write( "Solving above quadratic by factorization\r
\n" ); document.write( "\n" ); document.write( "x^2 + 11x -3x -33 =0
\n" ); document.write( "x(x+11) -3 ( x+11)=0
\n" ); document.write( "(x+11)(x-3) =0\r
\n" ); document.write( "\n" ); document.write( "So either x = 3\r
\n" ); document.write( "\n" ); document.write( "x = -11\r
\n" ); document.write( "\n" ); document.write( "x cannot be negative as width cannot be negative so x = 3 is the answer\r
\n" ); document.write( "\n" ); document.write( "So width of scale is 3
\n" ); document.write( "hope this helps
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