Question

Stella is going to a carnival that has games and rides. Each game costs $2.50 and each ride costs $4. Stella spent $52.50 altogether at the carnival and the number of rides she went on is twice the number of games she played. Write a system of equations that could be used to determine the number of games Stella played and the number of rides Stella went on. Define the variables that you use to write the system.
Answer
Attempt 1 out of 2

Let
equals=
.
Let
equals=
.
System of Equations:

Answer 1

Let g = number of games Stella played, and r = number of rides Stella went on.

System:
2.50g + 4.00r = 52.50
r = 2g

(If you want integers only, multiply the first equation by 100 or 10: 25g + 40r = 525.)