A person travels by car from one city to another with different constant speeds between pairs of cities She drives for 40 0 min at 100 0 km h, 17 0 min at 90 0 km h, and 45 0 min at 40 0 km h and spends 25 0 min eating lunch and buying gas (a) Determine the average speed for the trip km h (b) Dete...

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A person travels by car from one city to another with different constant speeds between pairs...

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A person travels by car from one city to another with different constant speeds between pairs...

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