document.write( "Question 476494: The Union Square Cinema charges $9 for an adult ticket and $4 for a child’s ticket. Last Saturday, the entire 1020 seat cinema was sold out. The total ticket receipts for the evening were $7680. How many of each type ticket were sold? \n" ); document.write( "
Algebra.Com's Answer #326679 by mananth(16946)\"\" \"About 
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$9 ticket x numbers
\n" ); document.write( "$4 ticket y numbers
\n" ); document.write( "
\n" ); document.write( "1 x + 1 y = 1020 .............1
\n" ); document.write( "9 x + 4 y = 7680 .............2
\n" ); document.write( "
\n" ); document.write( "multiply (1)by -4
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-4 x -4 y = -4080
\n" ); document.write( "9 x + 4 y = 7680
\n" ); document.write( "Add the two equations
\n" ); document.write( "5 x = 3600
\n" ); document.write( "/ 5
\n" ); document.write( "x = 720
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1 x + 1 y = 1020
\n" ); document.write( "720 + 1 y = 1020
\n" ); document.write( " 1 y = 1020 -720
\n" ); document.write( " 1 y = 300
\n" ); document.write( " y = 300
\n" ); document.write( "$ 9 tickets 720 numbers
\n" ); document.write( "$4 tickets 300 numbers\r
\n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca
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