document.write( "Question 910767: An envelope is 4 cm longer than it is wide. The area is 60 cm^2. Find the length and width. \n" ); document.write( "

Algebra.Com's Answer #552652 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( "(w+4)w = 60cm^2
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document.write( "w^2 + 4w - 60 = 0 (Tossing out the negative solution for unit measure)
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document.write( "(w +10)(w-6) = 0
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document.write( "w = 6cm  and L = 10cm 
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document.write( "And...checking
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document.write( "A = 60cm^2
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document.write( "Wish You the Best in your Studies. \n" );
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