document.write( "Question 929907: The length of a rectangle is 4 feet more than 3 times the width. If the area is 64 square feet, find the width and the length. \n" ); document.write( "

Algebra.Com's Answer #564572 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "     .
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document.write( "A = Lw
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document.write( "64ft^2 = (3w+4)w
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document.write( "3w^2 + 4w - 64 = 0 (tossing out negative solution for unit measure)
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document.write( "(3w +16)(w -4)= 0
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document.write( "w = 4ft  and L = 16ft 
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document.write( "and...checking
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document.write( "A = Lw = 64ft^2
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