Sally travels by car from one city to another. She drives for 28.0 min at 63.0 km/h, 50.0 min at 40.0 km/h, and 50.0 min at 43.0 km/h, and she spends 13.0 min eating lunch and buying gas.

Find the trip's average speed and total distance traveled...

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  1. avg speed = total distance/time

    total distance= rate1*time1 + rate2*time2 + ....

    change minutes to hours.

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