document.write( "Question 209377: Adult tickets for a play cost $6.00, and children's tickets cost $2.50. For one performance, 370 tickets were sold. Receipts for the performance were $1723. Find the number of adult tickets sold. \n" ); document.write( "
Algebra.Com's Answer #158295 by stanbon(75887)\"\" \"About 
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Adult tickets for a play cost $6.00, and children's tickets cost $2.50. For one performance, 370 tickets were sold. Receipts for the performance were $1723. Find the number of adult tickets sold.
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\n" ); document.write( "Equations:
\n" ); document.write( "Quantity Eq: a + c = 370
\n" ); document.write( "Value Eq::::6a + 2.5c = 1723
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\n" ); document.write( "Modify the 1st equation to set up the system for elimination:
\n" ); document.write( "2.5a + 2.5c = 2.5*370
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\n" ); document.write( "Sutract that from the Value equation and solve for \"a\":
\n" ); document.write( "3.5a = 798
\n" ); document.write( "a = 228 (# of adult tickets sold)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "Reply to stanbon@comcast.net
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