Question

At the movie theatre, child admission is $5.50 and adult admission is $8.60. On Wednesday, 131 tickets were sold for a total sales of $946.80 . How many adult tickets were sold that day?

Answer 1

73

Explanation:

Let a represent the number of adult tickets sold. Then the total revenue was ...

8.60a +5.50(131 -a) = 946.80

8.60a -5.50a +720.50 = 946.80 . . . . eliminate parentheses

3.10a = 226.30 . . . . . . subtract 720.50, collect terms

a = 73 . . . . . . . . . . . . . . divide by 3.10

73 adult tickets were sold that day.