Question

The table shows the total cost c for the number of aquarium tickets purchased t. Write an equation that can be used to find the cost c of t aquarium tickets. Use the equation and complete the table to find the cost of 5 tickets.
Number of​ Tickets, t
3
5
7
10
​ Cost, c
​$25.50
​$59.50
​$85.00
Question content area bottom
Part 1
Write an equation.
  
c equals 8.50 t
​(Use the operation symbols in the math palette as needed. Use integers or decimals for any numbers in the equation. Do not include the​ $ symbol in your​ answer.)
Part 2
Find the cost of 5 tickets to complete the table.
Number of​ Tickets, t
3
5
7
10
​ Cost, c
​$25.50
​$
  
enter your response here
​$59.50
​$85.00

Answer 1

Part 1: c = 8.50t

Part 2: For t = 5, c = 8.50 × 5 = 42.50, so the cost is $42.50.