document.write( "Question 404019: a rectangle has a perimeter of 74 inches. the length of one side is 3X-1.
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document.write( "the width of one side is 2X+3. What is the area? \n" );
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Algebra.Com's Answer #286065 by keksjr(7)![]() ![]() You can put this solution on YOUR website! Area of a Rectangle is A=LW and the Perimeter of a Rectangle is P=2L+2W \n" ); document.write( "Therefore; L=3X-1, and W=2X+3, P=74, \n" ); document.write( "P=2L+2W \n" ); document.write( "74=2(3X-1)+2(2X+3) \n" ); document.write( "74=6X-2+4X+6 \n" ); document.write( "74=10X+4 \n" ); document.write( "74-4=10X \n" ); document.write( "X=7. finding the value of L and W; 2L=2(3X-1), \n" ); document.write( " 2L=2[3(7)-1] \n" ); document.write( " L=20 in. \n" ); document.write( " 2W=2(2X+3) \n" ); document.write( " 2W=2[2(7)+3] \n" ); document.write( " W=17 in.\r \n" ); document.write( "\n" ); document.write( "Area of the Rectangle A=LW, A = 20x17 = 340sq.in \n" ); document.write( " |