document.write( "Question 390280: The length of a rectangle is 4cm more than the width. The perimeter is 28cm. Find the dimensions of the rectangle. \n" ); document.write( "

Algebra.Com's Answer #276682 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,  
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document.write( "I. Assigning the variable       
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document.write( "Let x and (x+4cm)represent the width and length respectively
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document.write( " P = 2(x+4cm)+ 2x = 28cm
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document.write( "Solving for x
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document.write( "  2(x+4cm)+2x = 28cm
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document.write( "     4x + 8cm = 28cm
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document.write( "             4x = 20cm
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document.write( "              x = 5cm, the width.  The length is 9cm   (5cm + 4cm)        
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document.write( "CHECKING our Answer
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document.write( "  2*9cm + 2*5cm = 28cm \n" );
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