Respuesta :

so 1/3 miles in 10 minutes
an hour is 60 minutes
to see how much he walks in a minute you divide 
1/3 / 10
so he walks 1/30 miles per minute
now to see how much in an hour
1/30 * 60 
that is 2 
In one hour he will travel 2 miles

Hope this helps :)