SOLUTION: Jane skates 9 miles each morning. Today, she averaged 10 miles per hour for the first 6 miles but then slowed to 5 miles per hour for the rest of the trip. How long did the entire

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Question 154650: Jane skates 9 miles each morning. Today, she averaged 10 miles per hour for the first 6 miles but then slowed to 5 miles per hour for the rest of the trip. How long did the entire trip take?
Found 2 solutions by stanbon, ptaylor:
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
Jane skates 9 miles each morning. Today, she averaged 10 miles per hour for the first 6 miles but then slowed to 5 miles per hour for the rest of the trip. How long did the entire trip take?
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First 6 miles DATA:
distance = 6 mi ; rate = 10 mph; time = d/r = 6/10 = 3/5 hrs
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Last 3 miles DATA:
distance = 3 mi ; tate = 4 mph; time = d/r = 3/4 hrs
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Total time:
(3/5) + (3/4) = 12/20 + 15/20 = 27/20 = 1 7/20 hrs.
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Cheers,
Stan H.

Answer by ptaylor(2198) (Show Source):
You can put this solution on YOUR website!
Distance(d) equals Rate(r) times Time(t) or d=rt; r=d/t and t=d/r
Time required to travel the first 6 miles =6/10=3/5 hr
Time required for the remaining 3 miles=3/5 hr
Total time=3/5 hr +3/5 hr=6/5 hr=1hr 12min
CK
(3/5)*10+(3/5)*5=9
6+3=9
9=9

Hope this helps---ptaaylor