PISA: The illustration below shows the footprints of a man walking.

The pace length, p , is the distance between the rear of two consecutive footprints.
For men, the formula n / p = 140 gives an approximate relationship between n and p where
n = number of steps per minute, and
p = pace length in meters
If the formula applies to Heiko's walking and Heiko takes 70 steps per minute, what is Heiko's pace length? Be sure to show your work.

Question

PISA: The illustration below shows the footprints of a man walking.
  
The pace length, p , is the distance between the rear of two consecutive footprints. 
For men, the formula n / p = 140 gives an approximate relationship between n and p where 
n = number of steps per minute, and 
p = pace length in meters 
If the formula applies to Heiko's walking and Heiko takes 70 steps per minute, what is Heiko's pace length? Be sure to show your work.

PISA: the Illustration Below Shows the Footprints of a Man