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4. If you travel the first half of a trip at 20 mi/h, how fast must you travel the second half of the trip so that your
average speed will be 40 mi/h?

Respuesta :

annielikestra1ns

Answer:

60 mi/h

Explanation:

An average is:

[tex]m = \frac{\text{sum of the terms}}{\text{number of terms}}[/tex]

And this is the same in physics.

So:

20+60 =80

80/2= 40

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