document.write( "Question 276777: An entertainment promotor for a magic show must make $161,000 from ticket sales in order to cover the cost and make a reasonable profit. The auditorium has 3000 seats with 1800 seats on the lower floor and 1200 balcony seats. Attendes will pay $20 more for the lower floor seats than for the balcony seats.\r
\n" ); document.write( "\n" ); document.write( "Write a system of equations with F for the floor seats ticket price and B for the balcony seat ticket price.
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Algebra.Com's Answer #201697 by ankor@dixie-net.com(22740)\"\" \"About 
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show must make $161,000 from ticket sales in order to cover the cost and make a reasonable profit.
\n" ); document.write( " The auditorium has 3000 seats with 1800 seats on the lower floor and 1200 balcony seats.
\n" ); document.write( " Attendees will pay $20 more for the lower floor seats than for the balcony seats.
\n" ); document.write( "Write a system of equations with F for the floor seats ticket price and B for the balcony seat ticket price.
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\n" ); document.write( "Let b = balcony price
\n" ); document.write( "and
\n" ); document.write( "f = lower floor price
\n" ); document.write( "f = (b+20) also
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\n" ); document.write( "Total revenue equation
\n" ); document.write( "1200b + 1800f = 161000
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\n" ); document.write( "Simplify, divide by 100
\n" ); document.write( "12b + 18f = 1610
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\n" ); document.write( "Replace f with (b+20), find b
\n" ); document.write( "12b + 18(b+20) = 1610
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\n" ); document.write( "12b + 18b + 360 = 1610
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\n" ); document.write( "30b = 1610 - 360
\n" ); document.write( "b = \"1250%2F30\"
\n" ); document.write( "b = $41.67 for balcony seat
\n" ); document.write( "and
\n" ); document.write( "41.67 + 20 = $61.67 for lower floor
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\n" ); document.write( "Check solution by finding the actual revenue
\n" ); document.write( "1200(41.67) + 1800(61.67) =
\n" ); document.write( "50004 + 111006 = $161,010.00 (an extra $10 from rounding up the cents)
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