Answer:
93 adult tickets
Explanation:
Let 'a' represent the number of adult tickets sold. Then total revenue was ...
9.60a +5.80(167 -a) = 1322
3.80a = 353.40 . . . . . . . . . . subtract 968.60, collect terms
a = 93 . . . . . . . . . . divide by 3.8
93 adult tickets were sold that day.
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74 child tickets were sold