Respuesta :

Answer:

17 mph

Step-by-step explanation:

A horse in a race ran 8 1/2 miles every 1/2 hour.  How far did the horse run in 1 hour?

Find the unit rate:

8 1/2 miles         17/2

----------------- = ------------ mph = 17 mph (answer)

  1/2  hour           1/2