Problema Solution
Use 5 step method:
Adult tickets for a play cost $25 each and children's tickets cost $15 each. The total receipts were $7200 and the total attendance was 400.
How many adults and how many children attended?
Answer provided by our tutors
a + c = 400
25a + 15c = 7200
a = 400 - c
25(400 - c) + 15c = 7200
10000 - 25c + 15c = 7200
10000 - 10c = 7200
-10c = -2800
c = 280
a = 400 - c
a = 400 - 280
a = 120
so 120 adult tickets and 280 childrens tickets were sold