Respuesta :
Answer:
For Gwen:-
x + 10y = 30
x + 15y = 40 - Tristan
if we subtract the above equations:-
we get
5y = 10
y = 2
That is the cost of each ticket is $2.
Step-by-step explanation:
Answer:
Gwen's equation- y=10x+30
Tristan's equation- y=15x+40
Keith's equation- y=10x+30
Step-by-step explanation: