Final answer:
The equation that can be used to find the number of tickets Liz needs for each hair tie is t = (2,200 - a) / 13. This equation represents the fact that if Liz spends a tickets on the kickball, she will have (2,200 - a) tickets left to buy hair ties. Dividing this remaining number of tickets by the quantity of hair ties that can be bought with it (13) gives the number of tickets needed for each hair tie.
Step-by-step explanation:
The equation that can be used to find the number of tickets Liz needs for each hair tie is:
t = (2,200 - a) / 13
Where t is the number of tickets for each hair tie and a is the number of tickets spent on the large item (kickball) that Liz plans to buy.
This equation represents the fact that if Liz spends a tickets on the kickball, she will have (2,200 - a) tickets left to buy hair ties. Dividing this remaining number of tickets by the quantity of hair ties that can be bought with it (13) gives the number of tickets needed for each hair tie.