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OpenStudy (anonymous):
As the train’s engineer, Erin guided the train on a 64 mi run, which took 1.7 h. She then stopped on a side rail to let a second train pass. She then continued another 80 mi, which took 1.9 h. What was the train’s average speed for the entire run?
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OpenStudy (anonymous):
find the total distance, then divide it by the total time
OpenStudy (anonymous):
thank you
OpenStudy (anonymous):
@satellite73 so 40?
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