The average speed is 5 miles per hour
Solution:
Given that, swimmer, loves to race around the park's pond
The park is 0.5 miles around
She can swim 20 laps around the track in 2 hours
To find: Average speed
From given statement,
Each lap is 0.5 miles
Thus total distance covered in 20 laps is given by:
Total distance = 0.5 x 20 = 10 miles
Given that she can swim 20 laps around the track in 2 hours
Total time taken = 2 hours
The Average speed is given by formula:
[tex]Average\ Speed = \frac{\text{ Total distance}}{\text{total time taken}}[/tex]
[tex]Average\ Speed = \frac{10}{2} = 5[/tex]
Thus average speed is 5 miles per hour
