document.write( "Question 909270: The length of a rectangle is three times its width.
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document.write( "If the area of the rectangle is
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document.write( "300ft2, find its perimeter. \n" );
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Algebra.Com's Answer #551744 by Rocky156(1)![]() ![]() ![]() You can put this solution on YOUR website! Assume the width as x. Then the length must be 3x. 3x *x=300 (width multiply by length). x squared=100. x=10. Then the width is 10. Therefore the length is 30. So 30+10=40! The answer is 40. \n" ); document.write( " |