To determine if Alice can stay within her budget of $800 for the picnic with 30 people for 4 hours, we need to calculate the costs involved:
-
Cost per person for entrance: $20
- For 30 people: \( 30 \times 20 = 600 \)
-
Cost for using the pavilion: $50 per hour
- For 4 hours: \( 4 \times 50 = 200 \)
Now, let's calculate the total cost:
\[ \text{Total cost} = \text{Cost for entrance} + \text{Cost for pavilion} = 600 + 200 = 800 \]
Alice's total cost for inviting 30 people for a 4-hour picnic is $800, which exactly meets her budget.
Thus, we conclude that:
- Solving an equation representing this situation proves that 30 people for exactly a 4-hour picnic is possible within the $800 budget.