SOLUTION: kate and chris are training for a marathon. kate can run 3.5 mph while chris runs 6mph. if chris gives kate a 1 mile head start, when will he pass her?
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Question 209689: kate and chris are training for a marathon. kate can run 3.5 mph while chris runs 6mph. if chris gives kate a 1 mile head start, when will he pass her? Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! kate and chris are training for a marathon. kate can run 3.5 mph while chris runs 6mph. if chris gives kate a 1 mile head start, when will he pass her?
.
You will need to apply the distance formula:
d = rt
where
d is distance
r is rate or speed
t is time
.
Let t = time Chris passes Kate
then
6t = 3.5t + 1
2.5t = 1
t = 1/2.5
t = .4 hours
or, in terms of minutes:
.4*60 = 24 minutes
