Question

What was the hiker's average speed for the entire hike? :D (Image attached) (I mark Brainliest Answers!)

A.
2.0 km/h

B.
10 km/h

C.
5.7 km/h

D.
6.7 km/h

Answer 1

     Using the Definition of average speed, we have:

$\Delta v= \frac{\Delta S}{\Delta t} \\ \Delta v= \frac{(4+6+4+6)}{12-9} \\ \Delta v= \frac{20}{3} \\ \boxed {\Delta v=6,7 km/h}$

Obs: approximate results

Letter D

If you notice any mistake in English, please let me know, because I'm not native.

Answer 2

The hiker's average speed for the entire hike will be D. 6.7 km/h.

The average speed is represented by;

= Distance / Time

Therefore, based on the diagram given, the average speed will be:

= (4 + 6 + 4 + 6) / (12 - 9)

= 20 / 3

= 6.7 km/h.

The speed is 6.7km/h.

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