Mathematics: For 20 POINTS!! A train goes from Springfield, MA to Boston at a speed of 40 mph. On the return journey it moves at a speed of 80 mph. If the return journey takes an hour less than the outward journey, what is the average speed overall of the train?

For 20 POINTS!! A train goes from Springfield, MA

Ответ:

ertgyhn

21.11.2020

Mathematics

53.33 mph

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sorry.. no explanation

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Ответ:

needhelpwithHW10

08.12.2020

Mathematics

Step-by-step explanation:

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For 20 POINTS!! A train goes from Springfield, MA to Boston at a speed of 40 mph. On the return journey it moves at a speed of 80 mph. If the return journey takes an hour less than the outward journey, what is the average speed overall of the train?

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