document.write( "Question 43024: The length of a rectangular sign is 3 feet longer than the width. If the sign has an area of 40 square feet for advertising, find its length and width.\r
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document.write( "Can someone show me how to do this? \n" );
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Algebra.Com's Answer #28044 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! area=length times width or 40=x(x+3) or 40=x~2+3x or x~2+3x-40=0 or \r \n" ); document.write( "\n" ); document.write( "(x+8)(x-5)=0 or x=-8 & x=5 so the sides are 5 & 5+3=8 \n" ); document.write( " |