58. Running, weather, math

The other night while I was out run/walking in the hot summer sun I was doing math problems, as is my wont, trying to figure out my running pace - a challenge when you're run/walking (or should it be run-walking?) - and I'm embarrassed to tell you how long it took me to figure this out - the answer is so obvious now. My excuse is that, although I'm constantly doing math problems while I'm running, I'm not constantly solving math problems - meaning, I'm not very good at math while I'm running, even though I'm always thinking about it. So, if I do 29 run/walk intervals of 1:15 and :30 over 4.75 miles, what's my running pace? Like I said, the answer seems so obvious now, but I just figured it out.  Wait... what?