Answer:
20/1 or 20 miles per hour.
Step-by-step explanation:
1. make 5 into 5/1
2. multiply across (shown below)
60 1 60
---- x ---- = ----
1 3 3
3. simplify (what can 60 and 3 both be divisible by?)
4. Solve, 20/1.
Thus, Bryan would walk 20 miles an hour.
(im not entirely sure this is correct but this is my best attempt) :) hope it works out!