Question

At the city museum, child admission is $6.10 and adult admission is $9.70. On Saturday, twice as many adult tickets as child tickets were sold, for a total sales of $765.00. How many child tickets were sold that day?

Answer 1

30 child tickets

Explanation:

You have twice as many adult tickets at $9.70 sold as child tickets at $6.10 for a total revenue of $765, and you want to know the number of child tickets sold.

Setup

Let c represent the number of child tickets sold. Then 2c is the number of adult tickets sold, and total revenue is ...

6.10c +9.70(2c) = 765

Solution

25.5c = 765 . . . . simplify

c = 30 . . . . . . . . divide by 25.5

30 child tickets were sold that day.