An olympic athlete can run 110 yards in 10 seconds. How far in miles per hour can the athlete run?
I think you mean how fast, not how far. See if this looks familiar at all...
it is a big long multiplication problem in which you do conversions then cancel top to bottom leaving mi/hr. Here goes...
110yd/10sec x 1mi/1760yd x 60sec/1min x 60min/1hr Do the multiplication and get 396000mi/17600hr Divide this out and you're done.