document.write( "Question 985171: The length of a rectangle is 3 cm more than twice its width. If the perimeter of the rectangle is 36 cm, find the dimensions of the rectangle \n" ); document.write( "
Algebra.Com's Answer #606057 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Let the width is x cm.\r \n" ); document.write( "\n" ); document.write( "Then the length is 2x+3 cm.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The equation is\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x + 2*(2x + 3) = 36.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Simplify and solve it:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x + 4x + 6 = 36,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6x = 36-6,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6x = 30.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 5 cm (the width).\r \n" ); document.write( "\n" ); document.write( "2x+3 = 10+3 = 13 cm (the length).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |