If i walk 3.5 miles in 1 hour it is obviously 3.5miles per hr. if i walk that same distance in 55 min and 40 sec (55.66 min) how can i calculate mph

Question

 If i walk 3.5 miles in 1 hour it is obviously 3.5miles per hr. if i walk that same distance in 55 min and 40 sec (55.66 min) how can i calculate mph

Answer 1

walk 3.5 miles in 55 minutes 40 seconds

55 minutes 40 seconds is:

40 sec=40/60 min=2/3 min

55 2/3 min

put 55 2/3 over 60 to convert to hours

(55 2/3)/60=

change the mixed number to an improper fraction

55 2/3=167/3

(167/3)/60=

167/(3*60)=

167/180 hr

put miles over hours

3.5/(167/180)=

this becomes:

(3.5*180)/167=

630/167=3.772455 miles per hour or 3 129/167 miles per hour

your rate is a little faster because your time is a little less