document.write( "Question 257841: 2. Suppose that the length of a rectangle is three cm longer than twice the width and that the perimeter of the rectangle is 90 cm.
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document.write( "a) Set up an equation for the perimeter involving only W, the width of the rectangle.
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document.write( "Answer:
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document.write( "b) Solve this equation algebraically to find the length of the rectangle. Find the width as well.
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document.write( " Answer: Length ______, Width ______
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document.write( " Show your work here:
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document.write( "
Algebra.Com's Answer #189745 by rfer(16322) ![]() You can put this solution on YOUR website! p=2w+2(2w+3) \n" ); document.write( "90=2w+4w+6 \n" ); document.write( "90=6w+6 \n" ); document.write( "84=6w \n" ); document.write( "14=w \n" ); document.write( "w=14 cm \n" ); document.write( "2w+3=31 cm \n" ); document.write( " |