document.write( "Question 155801: Tickets for a school play sold for $7.50 for each adult ticket and $3.00 each per childs ticket. The receipts for 113 tickets were$663. Find the number of adult tickets sold. \n" ); document.write( "
Algebra.Com's Answer #114752 by nerdybill(7384)\"\" \"About 
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Tickets for a school play sold for $7.50 for each adult ticket and $3.00 each per childs ticket. The receipts for 113 tickets were$663. Find the number of adult tickets sold.
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\n" ); document.write( "Let x = number of adult tickets sold
\n" ); document.write( "then because there were a total of 113 tickets sold:
\n" ); document.write( "113-x = number of child's tickets
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\n" ); document.write( "7.50x + 3.00(113-x) = 663
\n" ); document.write( "7.50x + 339 - 3x = 663
\n" ); document.write( "4.50x + 339 = 663
\n" ); document.write( "4.50x = 324
\n" ); document.write( "x = 72 (number of adult tickets sold)
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