document.write( "Question 828452: tickets at a concert cost $8 for section A and $4.25 for section B. In total 4500 tickets were sold worth $30000. How many of each type of ticket were sold? \n" ); document.write( "
Algebra.Com's Answer #499341 by jim_thompson5910(35256)\"\" \"About 
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tickets at a concert cost $8 for section A and $4.25 for section B. In total 4500 tickets were sold worth $30000. How many of each type of ticket were sold?\r
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\n" ); document.write( "\n" ); document.write( "Let x = # of section A tickets sold
\n" ); document.write( "Let y = # of section B tickets sold\r
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\n" ); document.write( "\n" ); document.write( "4500 tickets were sold, so x+y = 4500. Solve for y to get y = 4500-x\r
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\n" ); document.write( "\n" ); document.write( "\"tickets at a concert cost $8 for section A and $4.25 for section B. In total 4500 tickets were sold worth $30000\" all translates to the equation below\r
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\n" ); document.write( "\n" ); document.write( "8x + 4.25y = 30000\r
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\n" ); document.write( "\n" ); document.write( "8x + 4.25(4500-x) = 30000 ... plug in y = 4500 - x\r
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\n" ); document.write( "\n" ); document.write( "8x + 4.25(4500) + 4.25(-x) = 30000\r
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\n" ); document.write( "\n" ); document.write( "8x + 19125 - 4.25x = 30000\r
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\n" ); document.write( "\n" ); document.write( "3.75x + 19125 = 30000\r
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\n" ); document.write( "\n" ); document.write( "3.75x = 30000 - 19125\r
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\n" ); document.write( "\n" ); document.write( "3.75x = 10875\r
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\n" ); document.write( "\n" ); document.write( "x = 10875/3.75\r
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\n" ); document.write( "\n" ); document.write( "x = 2900\r
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\n" ); document.write( "\n" ); document.write( "y = 4500 - x\r
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\n" ); document.write( "\n" ); document.write( "y = 4500 - 2900\r
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\n" ); document.write( "\n" ); document.write( "y = 1600\r
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\n" ); document.write( "\n" ); document.write( "Since x = 2900 and y = 1600 this means that \r
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\n" ); document.write( "\n" ); document.write( "2900 section A tickets were sold
\n" ); document.write( "1600 section B tickets were sold
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