SOLUTION: A woman wantes to drive 82 km in 2 h. If she average 38 km/h for the first 1.47 h, what average velocity must she maintain for the remaining time in km/h?

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Question 843956: A woman wantes to drive 82 km in 2 h. If she average 38 km/h for the first 1.47 h, what average velocity must she maintain for the remaining time in km/h?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
For the 1st +1.47+ hrs, she covers:
+d%5B1%5D+=+38%2A1.47+
+d%5B1%5D+=+55.86+ km
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She has +82+-+55.86+=+26.14+ km
left to travel, and +2+-+1.47+=+.53+
hrs left
----------------------
+26.14+=+v%2A.53+
+v+=+26.14%2F.53+
+v+=+49.321+
She must maintain 49.321 km/hr for the remaining time