What to do:
First, divide 231 by 5 to find the average rate of speed per hour
231/5=46.2
And that's it! Mr. Alanzo was driving at an average rate of 46.2 miles per hour.
Hope I solved your problem, if not please stated what I did wrong and maybe I can fix it ૮ ˶ᵔ ᵕ ᵔ˶ ა