SOLUTION: Here's my question: Adult tickets for a play cost $11 and child tickets cost $10. If there were 23 people at a performance and the theater collected $246 from ticket sales, how man

Question 121760: Here's my question: Adult tickets for a play cost $11 and child tickets cost $10. If there were 23 people at a performance and the theater collected $246 from ticket sales, how many children attended the play? I got 16 children, but I have a feeling that's not right.
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
Let A= number of adults and C= number of children then:
A+C=23 and 11A + 10C= 246 then
C=23-A then 11A+10(23-A)=246 then A=16 then C=7 then:
7 Children attended the play
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