document.write( "Question 179499: The lenght of a rectangle is fixed to 15cm. what width will make the perimeter greater than 80cm? \n" ); document.write( "
Algebra.Com's Answer #134441 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Let w = width \n" ); document.write( "and since 15cm = length \n" ); document.write( ". \n" ); document.write( "2(width + length) = perimeter \n" ); document.write( ". \n" ); document.write( "2(w + 15) > 80 \n" ); document.write( "w + 15 > 40 \n" ); document.write( "w > 40-15 \n" ); document.write( "w > 25 cm \n" ); document.write( ". \n" ); document.write( "Width has to be greater than 25 cm \n" ); document.write( " \n" ); document.write( " |