Answer:
4.3 mph
Explanation:
rate = distance/time
rate = 5 mi / 70 min = 0.0714 mi/min
in miles/hr (mph):
70 min x 1 hr/60 min = 1.1667 hr
rate (mph) = 5 mi / 1.1667 hr = 4.2856 mph ≈ 4.3 mph
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