You have steamed 199 miles and consumed 23.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 410 miles?
• Fuel consumption rate (tons per mile) based on the first leg of the trip • Using a proportion: if X tons are used for 199 miles, how many tons for 410 miles at the same rate? • Careful unit consistency (miles with miles, tons with tons)
• How can you find how many tons of fuel are used for one mile at the current consumption rate? • Once you know the fuel per mile, how do you scale that up to find fuel for 410 miles? • After calculating, which answer choice is closest to your computed value?
• First compute tons per mile using the 199 miles and 23.0 tons. • Multiply your tons-per-mile value by 410 miles to get total tons. • Compare your final number carefully to the options; watch for rounding and decimal placement errors.
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