The first thing you should know is the following conversion: 1h = 60min What you can do to solve the problem is the use of a rule of three: 60 ---> 3.8 165 ---> x Clearing the value of x we have: x = (165/60) * (3.8) = 10.45 x = 10.45 mi answer she can walk 10.45 mi in 2 hours 45 minutes