coreyscott1574 coreyscott1574

30-05-2018
Mathematics

contestada

A train leaves little rock, arkansas, and travels north at 85 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 660 kilometers apart?

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popalabdulqayou popalabdulqayou

06-06-2018

s1 = 85 km/h

s2 = 80 km/h

t =?

d= 660

t=d/s

t= 660/(85-80) = 132 hour

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