SOLUTION: an exercise enthusiast alternates between jogging and walking. he traveled 15 miles during the past 3 hours. hes jogs at a rate of 7.5 miles per house and walks at a rate of 4 mile

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Question 910838: an exercise enthusiast alternates between jogging and walking. he traveled 15 miles during the past 3 hours. hes jogs at a rate of 7.5 miles per house and walks at a rate of 4 miles per hour. find how much time, to the nearest hundredth of an hour, he actually spent jogging and how much time hee spent walking
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
7.5j+4w=15,
j+w=3
j=0.857143, w=2.14286
j=0.86, w=2.14