Posted by Wesley on Friday, September 9, 2011 at 2:37am.
During a 220 meter relay race, Jack begins at the starting line and runs for 4 minutes and then passes the baton to Jill. She runs for 3 minutes and finishes the race. If Jack can run 20 meters per minute faster than Jill, then what is Jack's rate of speed?

Math  Writeacher, Friday, September 9, 2011 at 6:31am
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