Answer:
Option C is the answer.
Step-by-step explanation:
Given diameter is = 2 miles
So, radius will be = 1 mile
Let t represents the number of hours it took Johanna to walk completely around the lake.
Now, the circumference is given as: ![2\pi r](https://tex.z-dn.net/?f=2%5Cpi%20r)
So, circumference =
= 6.28 miles
Johanna's speed = 3 miles/ hour
We know the formula ![Time=Distance / Speed](https://tex.z-dn.net/?f=Time%3DDistance%20%2F%20Speed)
t = ![6.28/3](https://tex.z-dn.net/?f=6.28%2F3)
t = 2.09 hours
This is greater than 2, but less than 2.5, therefore, 2.0 < t < 2.5 is the answer.