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Mathematics, 10.07.2019 01:30 AnnaValentine2764

Atrain leaves little rock, arkansas and travels north at 70 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are at 450 kilometers apart

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Atrain leaves little rock, arkansas and travels north at 70 kilometers per hour. another train leave...
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