9514 1404 393
Answer:
- 50 child tickets
- 118 adult tickets
Step-by-step explanation:
Let c represent the number of child tickets sold. Then the number of adult tickets is 18+2c, and the total revenue is ...
5c +12(18+2c) = 1666 . . . . . total of (ticket price)×(number of tickets)
29c +216 = 1666 . . . . . . . . simplify
29c = 1450 . . . . . . . . . . . subtract 216
c = 50 . . . . . . . . . . . . . . divide by 29
(18+2c) = 118 . . . . . . . number of adult tickets
50 child tickets and 118 adult tickets were sold.
