Respuesta :

Answer:

Step-by-step explanation:

First we have to convert 3.1 miles to meters

That will be;

Mathematically;

1 mile= 1609.344 meters

So 3.1 miles will be 3.1 * 1609.344 =

4,988.9664 meters

Now, we divide the number of meters here by 400

That will be 4,988.9664/400 =

12.472416 laps

To the nearest tenth, this is 12.5 laps