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How long does it take to drive 860 miles at 55 mph?

To calculate the time it takes to drive 860 miles at 55 mph, we can use the formula:

Time = Distance / Speed

Time = 860 miles / 55 mph

Time ≈ 15.64 hours

Therefore, it would take approximately 15 hours and 38 minutes to drive 860 miles at a constant speed of 55 mph.