document.write( "Question 2275: a rectangle length is 5cm more than its width.if the preimeter is 40cm find the length and width \r
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Algebra.Com's Answer #983 by gsmani_iyer(201)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " perimeter(p) = 2l + 2b = 2(l+b)\r \n" ); document.write( "\n" ); document.write( " Let the width be = x cm \n" ); document.write( " \n" ); document.write( " So length = x + 5 cms. \n" ); document.write( " \n" ); document.write( " By applying the above formula, \n" ); document.write( " \n" ); document.write( " 40 cms = 2(x+x+5) \n" ); document.write( " \n" ); document.write( " 20 cms = x+x+5 = 2x+5 \n" ); document.write( " \n" ); document.write( " 2x = 20-5 = 15 \n" ); document.write( " \n" ); document.write( " x = \n" ); document.write( " \n" ); document.write( " So width = 7.5 cms.; length = 7.5+5 = 12.5 cms. Ans. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |