document.write( "Question 118007: El Segundo High School put on their annual musical. the students sold 650 tickets for a value of $4375. If orchestra seats cost $7.50 and balcony seats cost $3.50, how many of each kind of seats were sold? \n" ); document.write( "
Algebra.Com's Answer #86076 by stanbon(75887)\"\" \"About 
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El Segundo High School put on their annual musical. the students sold 650 tickets for a value of $4375. If orchestra seats cost $7.50 and balcony seats cost $3.50, how many of each kind of seats were sold?
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\n" ); document.write( "Let # of orchestra tickets be \"r\"; Let # of balcony tickets be \"b\".
\n" ); document.write( "EQUATIONS:
\n" ); document.write( "Quantity: r+b=650
\n" ); document.write( "Value: 7.5r + 3.5b = 4375
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\n" ); document.write( "Substitute to solve for \"b\"
\n" ); document.write( "7.5(650-b) + 3.5b = 4375
\n" ); document.write( "4875-7.5b+3.5b = 4375
\n" ); document.write( "-4b = -500
\n" ); document.write( "b = 125 (# of balconey tickets sold)
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\n" ); document.write( "Substitute to solve for \"r\":
\n" ); document.write( "r+125 = 650
\n" ); document.write( "r = 525 (# of orchestra tickets sold)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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