A circular jogging track forms the edge of a circular lake that has a diameter of 2 miles. Johanna walked once around the track at the average speed of 1 miles per hour. If t represents the number of hours it took Johanna to walk completely around the lake, which of the following is a correct statement?	Choose the correct choice from the following choices:
A) 0.5< t < 0.75  B) 1.75< t < 2.0  C) 6.0 < t < 6.5  D) 2.5 < t < 3.0  E) 3 < t < 3.5
D=2, and R=1   circumference thus is 2pi miles   we know that she walked 1mph   knowing the formula rt=D, we can deduce that t= D/r   D is 2pi miles and r is 1mph   t = 2pi/1   pi can be rewritten as 22/7   2*22/7 = 44/7 and multiply this by 1/1 = 44/7. This is greater than 6, but less than 6.5, therefore, 6&lt;t&lt;6.5. Answer choice 6.0 &lt; t &lt; 6.5.
<result>C</result>
A circular jogging track forms the edge of a circular lake that has a diameter of 2 miles. Johanna walked once around the track at the average speed of 1 miles per hour. If t represents the number of hours it took Johanna to walk completely around the lake, which of the following is a correct statement?