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Mathematics, 14.05.2021 01:00 vickybarba025

If Ying Zyiyu covers the first 200 miles of a trip going at 50 mph and the last hundred going 40 mph, what was his average speed of the entire trip? Do it fast

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If Ying Zyiyu covers the first 200 miles of a trip going at 50 mph and the last hundred going 40 mph...
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