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 5 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) 1.0 < t < 1.5  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 5mph   knowing the formula rt=D, we can deduce that t= D/r   D is 2pi miles and r is 5mph   t = 2pi/5   pi can be rewritten as 22/7   2*22/7 = 44/7 and multiply this by 1/5 = 44/35. This is greater than 1, but less than 1.5, therefore, 1&lt;t&lt;1.5. Answer choice 1.0 &lt; t &lt; 1.5.
<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 5 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?