Answer: 3 = 12 , 4 = 2 , 2 = 22
Explanation: Since t represents the number of tickets purchased, we need to plug that into our equation.
d = -10t + 42
d = -10(3) + 42
We know that d is the balance of the bank account, so if we plug in the number of tickets purchased, we will solve to get the balance of the bank account.
d = -10(3) + 42
d = -30 + 42
d = 12
In this equation, If we purchase 3 tickets, the balance of the bank account would be 12 dollars.
Let's do the last 2 equations using d = -10t + 42.
d = -10(4) + 42
d = -40 + 42
d = 2
In this equation, If we purchase 4 tickets, the balance of the bank account would be 2 dollars.
d = -10(2) + 42
d = -20 + 42
d = 22
In this equation, If we purchase 2 tickets, the balance of the bank account would be 22 dollars.