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10-04-2018
Mathematics

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A train travels 59 kilometers in 4 hours, and then 70 kilometers in 5 hours. What is its average speed?

MY ANSWER AND THE UNITS?

Respuesta :

calculista calculista

10-04-2018

we know that

[average speed]=distance/time
distance=59+70-----> 129 km
time=4+5----> 9 hours

[average speed]=129/9----------> 14.33 km/hour

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