document.write( "Question 10695: FIND THE DIMENSIONS OF A RECTANGLE WHOSE PERIMETER IS 56 INCHES IF THE LENGTH IS THREE TIMES THE WIDTH. \n" ); document.write( "
Algebra.Com's Answer #24338 by tran3209(100)![]() ![]() ![]() You can put this solution on YOUR website! Let X be the width of the rectangle in inches: W = X. \n" ); document.write( "The length of the rectangle is 3 times the width : L = 3X. \n" ); document.write( "The perimeter of the rectangle : P = 2 W + 2 L \n" ); document.write( " P = 2 ( W + L ) \n" ); document.write( "Replace W and L by X : P = 2 ( X + 3X ) \n" ); document.write( "Replace P by 56 \" : 56 = 2(4X) \n" ); document.write( " 56 = 8 X \n" ); document.write( " X = 56/8 \n" ); document.write( " X = 7\r \n" ); document.write( "\n" ); document.write( "The Dimention of the rectangle Width 7\", Length 21\" \n" ); document.write( " \n" ); document.write( " |