For this sequence, write an explicit formula. then determine the 15th term in the sequence.
1/2, 1, 3/2, 2 5/2, 3 7/2
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Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance