Mathematics
Mathematics, 04.07.2019 14:30, endermss6220

Atruck with a heavy load drove from boston to new york at a speed of 40 mph. after unloading, it returned from new york to boston at a speed of 60 mph. what was the average speed for the whole trip?answer this with an explanation

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Atruck with a heavy load drove from boston to new york at a speed of 40 mph. after unloading, it ret...

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