document.write( "Question 964644: The length of a rectangle is 3 cm greater than its width. The area is 70 square cm. find the dimensions of the rectangle. \n" ); document.write( "

Algebra.Com's Answer #589498 by macston(5194) $\"\"$ $\"About$

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\n" ); document.write( "W=width; L=length=W+3cm; A=area=70 sq cm
\n" ); document.write( " $\"WL=A\"$ Substitute for L
\n" ); document.write( " $\"W%28W%2B3cm=70cm%5E2%29\"$ Subtract 70 cm^2 from each side
\n" ); document.write( " $\"W%5E2%2B3W-70=0\"$
\n" ); document.write( " $\"%28W-7%29%28W%2B10%29=0\"$
\n" ); document.write( " $\"W-7=0\"$ $\"or\"$ $\"W%2B10=0\"$
\n" ); document.write( " $\"W=7\"$ $\"or\"$ $\"W=-10\"$
\n" ); document.write( "ANSWER 1: The width is 7 centimeters.
\n" ); document.write( " $\"L=W%2B3cm\"$ = $\"7cm%2B3cm=10cm\"$
\n" ); document.write( "ANSWER 2: The length is 10 centimeters.\r
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