document.write( "Question 388245: What is the correct equation for the following:
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document.write( "Group goes to show, total ticket price $720, 4 people drop out, each ticket goes up $2. What is new ticket price?\r
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document.write( "My equation was 720/x + 720/(x-4) = 2, but I don't think that is correct!\r
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document.write( "Thanks! \n" );
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Algebra.Com's Answer #274544 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! Let x=original ticket price\r \n" ); document.write( "\n" ); document.write( "720/x= number of tickets originally\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Equation is based upon NEW ticket price times NEW number of tickets = 720\r \n" ); document.write( "\n" ); document.write( "(x+2)(720/x - 4)=720 \n" ); document.write( "720 - 4x +1440/x - 8 = 720 \n" ); document.write( "-4x +1440/x - 8 = 0\r \n" ); document.write( "\n" ); document.write( "-4x^2+1440 -8x=0 \n" ); document.write( "x^2 +2x -360=0 \n" ); document.write( "(x+20)(x-18)=0 \n" ); document.write( "x=-20 reject \n" ); document.write( "x=$18 = Original Ticket Price \n" ); document.write( "x+2= $20 = New Ticket Price\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Check: \r \n" ); document.write( "\n" ); document.write( "Number of tickets originally =40\r \n" ); document.write( "\n" ); document.write( "Number of tickets after dropouts = 36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "18*40 = 20*36 = $720\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Nice Problem!!!\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Dr. Robert J. Rapalje, Retired \n" ); document.write( "Seminole State College of Florida \n" ); document.write( " \n" ); document.write( " |