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April 20, 2014

Homework Help: calculus

Posted by Jim on Wednesday, December 12, 2012 at 9:28pm.

Amy wants to reach, as quickly as possible, a destination of 5km downstream and on the opposite side of the river that is 1.5km wide. If she can run at 16kmp and can swim at 5kmp, how far should she run down the shore before turning into the water to swim? Consider the river current to be negligible.

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