5.2182 rounded to the nearest thousandth

5.218

Step-by-step explanation:

Since 2, ten thousandths place, is less than 5, the thousandths place stays the same.

It would be 5.218

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-Chetan K

Average speed, v = 1.66 km/h

Explanation:

It is given that, Ian walks 2 km to his best friend’s house, then walks 0.5 km to the library. He then makes a 2.5 km walk home.

Total time taken in the entire walk, t = 3 hours

We need to find the average speed of the Ian during his journey.

Total distance covered is,

Average velocity,

So, the average speed during the entire journey is 1.66 km/h. Hence, this is the required solution.