Answer: 81 children and 92 adults
Step-by-step explanation:
To solve the exercise, check the data we have from the question:
Total people: 173
Adult tickets price: $5
Children tickets price: $3
Total revenue: $703
We need to know how many of each kind of ticket were sold. To do so, we can show the data as two equations:
Equation 1:


Equation 2:

Where a represents adults who attended the event and c represents children who attended the event. We can replace one of the unknown quantities following:


Solving:




Then, we replace c on equation 2:

