Let's break down the expenses for your theme park trip with the family:
- Ticket Cost: Each ticket costs $125.
- Processing Fee: Each ticket also incurs a processing fee of $5.75.
- Parking Fee: There is also a parking fee of $20.
First, we define the variables:
- Let \( t \) = the number of tickets you want to purchase.
Now, let's formulate the inequality:
The total cost to purchase \( t \) tickets would be:
\[ \text{Total Cost} = (\text{Ticket Cost} + \text{Processing Fee}) \cdot t + \text{Parking Fee} \]
\[ \text{Total Cost} = (125 + 5.75)t + 20 \]
This can be simplified to:
\[ \text{Total Cost} = 130.75t + 20 \]
Now, we need to ensure that the total cost does not exceed the amount of money you have, which is $685:
\[ 130.75t + 20 \leq 685 \]
Next, we can solve the inequality to find how many tickets can be purchased:
- Subtract 20 from both sides:
\[ 130.75t \leq 685 - 20 \] \[ 130.75t \leq 665 \]
- Now, divide both sides by 130.75:
\[ t \leq \frac{665}{130.75} \]
Calculating the right-hand side:
\[ t \leq 5.08 \]
Since \( t \) must be a whole number (you can't buy a fraction of a ticket), the maximum number of tickets you can purchase is \( t = 5 \).
Now, let's check if purchasing 5 tickets is possible:
\[ \text{Total Cost} = 130.75 \cdot 5 + 20 = 653.75 + 20 = 673.75 \]
This cost is less than $685, so yes, you can buy 5 tickets!
Conclusion
You can use the inequality: \[ 130.75t + 20 \leq 685 \] And you can purchase a maximum of 5 tickets based on this inequality, confirming that you have enough money.