A zoo membership costs $30 per year. Members can purchase tickets at a discounted rate of $6 each. The total cost c, for a membership and t tickets can be represented with the equation c=30+6t.

Complete the table to find the annual cost of a membership, c, given different numbers of tickets purchased throughout the year, t. You can solve on paper and then enter your answers on Zearn.
t, the number of tickets per year
Input Output Arrow
30+6t
Input Output Arrow
c, the annual cost
c=30+6t

t, the number of tickets c, the cost
3
5
7

1 answer

To find the annual cost \( c \) for different numbers of tickets \( t \) using the formula \( c = 30 + 6t \), we can plug in the values of \( t \) you've provided.

  1. For \( t = 3 \): \[ c = 30 + 6 \times 3 = 30 + 18 = 48 \]

  2. For \( t = 5 \): \[ c = 30 + 6 \times 5 = 30 + 30 = 60 \]

  3. For \( t = 7 \): \[ c = 30 + 6 \times 7 = 30 + 42 = 72 \]

Now, completing the table:

| t (number of tickets) | c (annual cost) | |-----------------------|------------------| | 3 | 48 | | 5 | 60 | | 7 | 72 |

You can now enter these results in Zearn.