document.write( "Question 800034: please help me solve the following word problem. tickets for a school dance cost $7 in advance or $11 at the door. If 109 students attend the dance and the total spent was $887, how many tickets were bought in advance and how many at the door? \n" ); document.write( "
Algebra.Com's Answer #482909 by mananth(16946)\"\" \"About 
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x= Number of gate tickets
\n" ); document.write( "y= Number of tickets in advance
\n" ); document.write( "
\n" ); document.write( "1 x + 1 y = 109 .............1
\n" ); document.write( "Total value
\n" ); document.write( "11 x + 7 y = 887 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -7
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-7 x -7 y = -763
\n" ); document.write( "11 x + 7 y = 887
\n" ); document.write( "Add the two equations
\n" ); document.write( "4 x = 124
\n" ); document.write( "/ 4
\n" ); document.write( "x = 31
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "1 x + 1 y = 109
\n" ); document.write( "31 + y = 109
\n" ); document.write( " y = 109 -31
\n" ); document.write( " y = 78
\n" ); document.write( " y = 78
\n" ); document.write( "x= 31 Number of gate tickets
\n" ); document.write( "y= 78 Number of tickets in advance
\n" ); document.write( "m.ananth@hotmail.ca
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