document.write( "Question 528732: the length of a rectangle is 20ft. less than twice the width. of the perimeter of the rectangle is 260ft. find the length and width of the rectangle
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Algebra.Com's Answer #349408 by mathstutor494(120)![]() ![]() You can put this solution on YOUR website! Let width = x\r \n" ); document.write( "\n" ); document.write( "Then length = 2x-20\r \n" ); document.write( "\n" ); document.write( "Perimeter of the rectangle = 2(Length+Width) \n" ); document.write( "2( 2x-20+x) = 260 \n" ); document.write( "2(3x-20) = 260 \n" ); document.write( "3x-20= 130 \n" ); document.write( "3x = 130+20 \n" ); document.write( "x = 150/3 => 50 \n" ); document.write( "Therefore Length = 2x-20 => 2*50-20 => 100-20 => 80\r \n" ); document.write( "\n" ); document.write( "Ans : Length 80 ft, Width 50 ft \n" ); document.write( " |