
To find: System of equations to find the number of adult tickets and number of children tickets sold.

Answer to Problem 16E
Explanation of Solution
Given equation:
Total earnings =
Total tickets sold =
Cost of each ticket for adults =
Cost of child’s ticket =
Let
Let
From given information
Total tickets sold =
Cost of each ticket for adults =
1 ticket
Multiplying with
We get
Therefore, Cost of
Cost of child’s ticket =
1 ticket
Multiplying with
We get
Therefore, Cost of
Total earnings =
Therefore,
Equations required to find number of adult tickets and number of children tickets are
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