Physics, 22.10.2020 19:01 kyleighott
Kim took 5 hours to complete a journey with an average speed of 80 km/h. For the first 3 hours, she traveled at an average speed of 60 km/h. What was her average speed for the remaining time of the journey?
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Kim took 5 hours to complete a journey with an average speed of 80 km/h. For the first 3 hours, she...
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