Pleaseeeee helllp?

While competing in a school mini-triathlon, Ray ran 4 miles in 45 minutes, swam 1 mile in 20 minutes, and biked 15 miles in 50 minutes. What was his average rate for the race??

A. This isn't math
B. It's hardly related to cycling (actually not at all - it's a word problem)
C. The reason I don't go to the homework forum is because I feel cheating on one's homework is wrong. I don't want to be asked a question or even see the slews of cheats that may graduate from school in the next decade. What will you ever do if you lose your internet connection? We are doomed...

EDIT: I'm trying something different too... you'll see it soon...

This is YOUR homework. It is a Time Rate Distance question.
R=D/T OK?
Rate (mph) = D (miles) divided by T (time)

First you convert your time into fractions of an hour.
Second you do the equation for each segment as in swim, biked, and ran. You will then have the rate answers for each segment. There are 3 segments so add the mph of each segment and divide by 3 for the average.

Since it is YOUR homework you need to show YOUR work. This is enough information here for you to get the correct answer. HINT: use a calculator.

You owe me a best answer on this one, because you will get it right and you will have, more importantly, learned how to do it.



EDIT: M R don't you see by my answer that I am trying to sound like a school teacher (a new tact). If they think we teach here the interest of getting answers here will wane.

EDIT V1.5: A thumbs down for the effort of education? Is nothing sacred these days?

I agree with McG -- he does deserve the best answer. I started to work it out, then said the heck with it, I've got better things to do...

Oh come on give him a break

20 miles divided by 1.9167hrs (115minutes/60minutes) =10.4346mph