You're the one really in the best position to answer that.

On the biking leg of a sprint triathlon (about 15 miles), I can average around 20 mph on a fairly flat course. That's after having swam but there are no stops. Weaving around other cyclists can slow you down some and there are corners you can't take at full speed. About the last 1/2 mile I don't push quite so hard and I also ease up to speed in beginning rather than trying to explode out of the transition.

With longer distances it's easier to get the average up assuming you're conditioned for it. Since you're only going 10 miles, every time you slow down hurts you more, as you have to make that up in a shorter overall distance.

I'm not the world's fastest cyclist but I usually finish in the top quarter of my age group. Sometimes in the top 10%.

I think even if you could do it it would be a tough thing to manage to accomplish every day.