<PRE><B>Question 70072</B>
adult tickets for a play cost $20 and child ticket cost $1...if there were 26 people at a performance and the theater collected $349 from ticket sales, how many children attended the play? 
x=the number ofadult tickets sold; Value is 20x dollars
y=the number of child tickets sold; value is 1y dollars
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EQUATIONS:
x+y=26
20x+y=349 
---------
y=-x+26
Substitute into the 2nd equation to get:
20x-x+26=349
19x=323
x=17 (number of adult tickets sold)
y=-17+26=9 (number of child tickets sold) 
Cheers,
Stan H.
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