Last month, the zoo held a special "Eat Like an Animal" fundraiser program. Visitors could choose animals from a list and get a taste of the safe human foods those animals eat at the zoo. To join the program, visitors had to pay a fee.

Once in the program, visitors could pick animal diets to try for $15 per animal. Justin participated in the fundraiser, trying the lion, flamingo, and panda diets. He paid $66 for these selections, but he can't remember how much the fee was to join the program.
In #4, how much was the fee to join the program?

$45

$66

$17

$21

1 answer

To find out how much the fee to join the program was, let's set up the problem with the information given.

  1. Let \( F \) represent the fee to join the program.
  2. The cost to try each animal diet is $15.
  3. Justin tried three animal diets: lion, flamingo, and panda. Therefore, the cost for the diets alone is \( 3 \times 15 = 45 \) dollars.

Now we can write the equation for the total amount Justin paid:

\[ F + 45 = 66 \]

To find \( F \), we subtract 45 from both sides:

\[ F = 66 - 45 = 21 \]

Thus, the fee to join the program was $21.

The answer is $21.