Answer:
3,516
Explanation:
Let t represent the number of tickets sold. Then 8.50t is the number of dollars in sales resulting from selling those tickets. We have ...
8.50t = 29,886
Dividing by the coefficient of t gives ...
t = 29,886/8.50 = 3,516
3,516 tickets were sold that night.
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In short, divide the total revenue by the revenue per ticket to find the number of tickets.