You can put this solution on YOUR website!
Assume the problem is:
The distance from here to the beach at Little Boar's head is 10miles.
If you walked there at 4mph and returned jogging at 8mph, how much time would the round trip take?
Let t = time for round trip
Write a time equation: time = dist/speed
total time = walk time + jog time
t = 3.75 hrs
" What would your overall average speed be?"
Total dist = 20 mi
Speed = dist/time
S = 5