6 mph, six miles per hour.
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speed = distance/time = 2.8mi/30min = 0.09mi/min
1.5 miles in 30 minutes is equivalent to 3 miles in 60 mintes = 1 hour.So the average speed is 3 mph.1.5 miles in 30 minutes is equivalent to 3 miles in 60 mintes = 1 hour.So the average speed is 3 mph.1.5 miles in 30 minutes is equivalent to 3 miles in 60 mintes = 1 hour.So the average speed is 3 mph.1.5 miles in 30 minutes is equivalent to 3 miles in 60 mintes = 1 hour.So the average speed is 3 mph.
60mph (60 miles per hour)
Trick question, the answer is given: 30 mph defines the speed. However, if this was a typo, and you were looking for the amount of miles driven, then the answer is 7.5 miles because 15 minutes is a fourth of a mile so, proportionally, 7.5 miles is a fourth of 30 miles.
90 mph