document.write( "Question 505956: Tickets for a school play sell for $8 for floor seats and $6 for
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document.write( "balcony seats. For one performance 72 tickets are sold, bringing in $516.
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document.write( "How many of each ticket are sold? \n" );
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Algebra.Com's Answer #340051 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Let \n" ); document.write( "Floor seats = f \n" ); document.write( "Cost of 8 tickets = 8*f = 8f \n" ); document.write( "Balcony seats = b \n" ); document.write( "Cost of 6 Balcony seats = b = 6*b = 6b\r \n" ); document.write( "\n" ); document.write( "Given\r \n" ); document.write( "\n" ); document.write( "Floor seats + Balcony seats = Total tickets sold \n" ); document.write( "f + b = 72 \n" ); document.write( "f=72-b ...............(1) \r \n" ); document.write( "\n" ); document.write( "Amount of tickets sold = Cost of 8 tickets + Cost of 6 Balcony seats \n" ); document.write( "516=8f+6b ...........(2) \n" ); document.write( "Put the value of f from (1) to (2) \n" ); document.write( "516=8(72-b)+6b \n" ); document.write( "516=576-8b+6b \n" ); document.write( "516-576=-2b \n" ); document.write( "-30=-2b \n" ); document.write( "Divide by (-2) both sides of the equation \n" ); document.write( "-30/-2=-2b/-2 \n" ); document.write( "30=b \n" ); document.write( "b=30\r \n" ); document.write( "\n" ); document.write( "Put the value of b in (1) \n" ); document.write( "f=72-b ...............(1) \n" ); document.write( "f=72-30 \n" ); document.write( "f=42\r \n" ); document.write( "\n" ); document.write( "Floor seats tickets = f = 8 \n" ); document.write( "Cost of 8 tickets = 8*f = 8f = 8*42 = $336 \n" ); document.write( "Balcony seats tickets = 30 \n" ); document.write( "Cost of 6 Balcony seats = b = 6*b = 6b=6*30=$180 \n" ); document.write( "Amount of tickets sold = Cost of 8 tickets + Cost of 6 Balcony seats \n" ); document.write( "516=336+180 \n" ); document.write( "516=516\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |