On a long-distance biking trip, Annike started biking at 7 a.m., and her average speed was 11 miles per hour. Celia started at 8
a.m., and her average speed was 14 miles per hour. At what time will the two bikers have completed the same number of miles? (Please explain the method you used)
Annike's 11-mile head start is being made up by Celia at the rate of 3 miles per hour. It will take Celia 11/3 = 3 2/3 hours to catch Annike. 3 hours and 40 minutes after 11 a.m. is 2:40 p.m..
Celia and Annike will both have completed 51 1/3 miles at 2:40 p.m..
On a long-distance biking trip, Annike started biking at 7 a.m., and her average speed was 11 miles per hour. Celia started at 8 a.m., and her average speed was 14 miles per hour. Therefore, at 2:40 p.m., the two bikers will have completed the same number of miles.
