document.write( "Question 1171979: The length of a rectangle is 7 inches longer than its width. The area of the rectangle is 260 square inches.\r
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document.write( "What is the length of the rectangle in inches? \n" );
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Algebra.Com's Answer #796902 by ikleyn(52803)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "You have two ways.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The first way is FAST. You may GUESS the answer in 4 seconds: the length is 20 inches.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The second way is to write this \"area\" equation for the length x\r\n" ); document.write( "\r\n" ); document.write( " x(*(x-7) = 260.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "It is a quadratic equation.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Reduce it to its standard form, and then solve\r\n" ); document.write( "\r\n" ); document.write( "using the quadratic formula or factoring.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "You will get the same answer.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "----------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "To see many similar solved problems, look into the lesson\r \n" ); document.write( "\n" ); document.write( " - Problems on the area and the dimensions of a rectangle\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |