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A circular jogging track forms the edge of a circular lake that has a diameter of 2 miles. Johanna walks once around the track at the average rate of 3 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?A. 0.5< t < 0.75
B. 1.75< t < 2.0
C. 2.0 < t < 2.5
D. 2.5 < t < 3.0
E. 3 < t < 3.5

Respuesta :

Answer:C 2.0< t < 2.50

Step-by-step explanation:

Diameter of circular lake = 2 miles

Radius of the circular lake= 1 mile

Circumference of the circular lake = 2 pi

Speed of Joanna = 3mph

Time t= distance/ speed = circumference of lake / speed

t = 2 pi/ 3 = (2 × 3.142) / 3

t = 6.284/3 = 2.09

This is greater than 2 but less than 2.5, therefore statement C is correct

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