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1. A helicopter company charges $85 for the first kilometer of a trip and $5 every kilometer after that. If the total cost of a trip was $365, how many kilometers were flown?
- A. 55
- B. 55
- C. 55
- D. 55
Answer: Option B
Explanation:
To determine the total number of kilometers flown, let's break the problem into manageable steps.
Step 1: Understand the cost structure
• The first kilometer costs $85.
• Every subsequent kilometer costs $5 each.
Step 2: Subtract the cost of the first kilometer
The total cost of the trip is $365. Subtract the cost of the first kilometer:
Step 3: Calculate the number of subsequent kilometers
Each subsequent kilometer costs $5. The number of kilometers flown after the first kilometer is:
Step 4: Add the first kilometer
Including the first kilometer, the total distance flown is:
Final Answer:
The helicopter flew 57 kilometers.
Step 1: Understand the cost structure
• The first kilometer costs $85.
• Every subsequent kilometer costs $5 each.
Step 2: Subtract the cost of the first kilometer
The total cost of the trip is $365. Subtract the cost of the first kilometer:
Step 3: Calculate the number of subsequent kilometers
Each subsequent kilometer costs $5. The number of kilometers flown after the first kilometer is:
Step 4: Add the first kilometer
Including the first kilometer, the total distance flown is:
Final Answer:
The helicopter flew 57 kilometers.
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