Answer:

Step-by-step explanation:
We know that,


On his way to the rink,
Distance = 60 miles,
Speed = 55 miles per hours,
Thus, the time taken by him =
hours,
While, on his way to the home,
Distance = 60 miles,
Let x be the number of miles per hour he averages on his way home,
So, time taken by him =
hours
Thus, the total time taken by him = 
According to the question,
Total time taken by him = 2.75 hours,

Which is the required equation.