A motorboat heads upstream a distance of 24 miles on a river whose current is running at 3 miles per hour. The trip up and back takes 6 hours. Assuming that the motorboat maintained a constant speed relative to the water, what was its speed?

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03-11-2014
Mathematics

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A motorboat heads upstream a distance of 24 miles on a river whose current is running at 3 miles per hour. The trip up and back takes 6 hours. Assuming that the motorboat maintained a constant speed relative to the water, what was its speed?

Sagot :

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Аноним Аноним · Answer 1 · 2014-11-03T22:21:53-05:00

Аноним Аноним

03-11-2014

To get speed you do Distance/Time.

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DavidE DavidE · Answer 2 · 2014-11-03T22:46:41-05:00

DavidE DavidE

03-11-2014

9mph is the boat's actual speed.
12mph with the stream and 6mph against the stream.
12mph takes 2 hours to get there and 6mph takes 4 to get back = 6hours.

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