document.write( "Question 20563: The expression 2(1 + w) may be used to find the perimeter of a rectagle. What are the length and width of a rectangle if the area is 13 1/2 square feet and the length of one side is 1/5 the measure of the perimeter?\r
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Algebra.Com's Answer #9922 by askmemath(368)![]() ![]() ![]() You can put this solution on YOUR website! The expression 2(1 + w) may be used to find the perimeter of a rectagle. What are the length and width of a rectangle if the area is 13 1/2 square feet and the length of one side is 1/5 the measure of the perimeter?\r \n" ); document.write( "\n" ); document.write( "Let length = L and width = W \n" ); document.write( "We know area = LxW which is given to be 13.5 sq feet. \n" ); document.write( "Also L = \n" ); document.write( "L = \n" ); document.write( "Multiplying both sides with 5 \n" ); document.write( "5L = 2(L+W) \n" ); document.write( "5L = 2L+2w \n" ); document.write( "Subtracting 2L on both sides \n" ); document.write( "3L = 2W \n" ); document.write( "Dividing both sides with 3 \n" ); document.write( "L = \n" ); document.write( "Substituting this back in the area \n" ); document.write( " \n" ); document.write( "Multiplying both sides with 3 \n" ); document.write( " \n" ); document.write( "Dividing both sides with 2 \n" ); document.write( "W^2 = 20.25 \n" ); document.write( "or W = 4.5 \n" ); document.write( "which means L = 2/3 X 4.5 = 3 \n" ); document.write( " |