Shannon decides to check the accuracy of her speedometer. She adjusts her speed to read exactly 70 mph on her speedometer and holds this steady, measuring the time between successive mile markers separated by exactly 1.00 mile. By how much is her speedometer off?
please write in comment if time in your case is different from 54s and I will solve it
Shannon decides to check the accuracy of her speedometer. She adjusts her speed to read exactly...