455,606 views
25 votes
25 votes
A Student bought concert tickets online. The total cost, c, in dollars of t tickets can be found by using the function below

c=12.45t+7.20
If the student spent a total of $57 on tickets, how many tickets did they buy?

User Thrau
by
2.9k points

2 Answers

16 votes
16 votes

Answer: 4

Explanation:

c= 12.45t +7.20

57 = 12.45t +7.20

Solve for t

57 -7.20 = 12.45t

49.8 =12.45t

49.8 / 12.45 = t

t = 4

User Kjoelbro
by
3.0k points
15 votes
15 votes

Answer:

4

Step-by-step explanation

57-7.20=49.8, 49.8/12.45 = 4

User Akarsh
by
3.2k points