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Stells [14]
2 years ago
14

A person is canoeing on a river. Her overall speed is 3.4 mile(s) per hour up river and 5.6 mile(s) per hour down river. Find th

e speed of the river's current and the speed the person can paddle in still water.
Mathematics
1 answer:
PIT_PIT [208]2 years ago
5 0

Answer:

a) v_{river} = 1.1\,mph, b) v_{person} =4.5\,mph

Step-by-step explanation:

Overall speeds up river and down river are modelled by following expressions:

Up River

-3.4\,mph = v_{river} - v_{person}

Down River

5.6\,mph=v_{river} + v_{person}

After some algebraic manipulations, speeds are found:

v_{river} = 1.1\,mph

v_{person} =4.5\,mph

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