Your ship has steamed 1651 miles at 20 knots...

Question 1 of 270705eccef9dbacbc34ba4d45dcd

Your ship has steamed 1651 miles at 20 knots using 580 tons of fuel oil. The distance remaining to your next port is 1790 miles. If you increase speed to 25 knots, how much fuel will be used to reach that port?

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Question 1 of 27070

🔍 Key Concepts

• Relationship between speed, time, and distance: $\text{Speed} = \frac{\text{Distance}}{\text{Time}}$ • How to find fuel consumption per hour or per mile from the first leg of the voyage • How a change in speed affects fuel burned per hour vs fuel burned per mile

💭 Think About

• From the first part of the trip, how can you calculate either tons of fuel per mile or tons of fuel per hour? Which is easier to use for the next leg? • Once you know the consumption rate, how do you adjust (or not adjust) that rate when the speed changes from 20 knots to 25 knots? Are you assuming the same tons per hour or the same tons per mile? • After you find the time or distance-based fuel use for the second leg, does your result seem reasonable compared to the 580 tons already burned?

✅ Before You Answer

• Compute the time taken for the first 1651 miles at 20 knots before doing any fuel calculations • Carefully decide whether to base your calculation on tons per hour or tons per mile, and stay consistent • Before choosing an answer, check that the final fuel use for the second leg is not wildly out of proportion to the 580 tons used on the first leg