Physics, 27.08.2020 18:01 edjiejwi

A truck covered 2/7 of a journey at an average speed of 40 mph. Then, it covered the remaining 200 miles at another
average speed. If the average for the whole journey was 35
mph, what was the amount of time for the whole journey?
h

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A truck covered 2/7 of a journey at an average speed of 40 mph. Then, it covered the remaining 200...

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