### Word Problem with Vectors: powerboat in still water is 35 mi/h. A river flows at 8 mi/h.....

A http://www.door2math.com production.The speed of a powerboat in still water is 35 mi/h. It is traveling on a river that ?ows directly south at 8 mi/h. At what angle should the boat head upriver in order to travel directly west?

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