On a windy day William found that he could travel 16 mi downstream and then 4 mi

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On a windy day William found that he could travel 16 mi downstream and then 4 mi back upstream at top speed in a total of 48 min. What was the top speed of William’s boat if the rate of the current was 15 mph? (Let x represent the rate of the boat in still water.)image

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Intermediate Algebra

ISBN: 9780134895987

13th Edition

Authors: Margaret Lial, John Hornsby, Terry McGinnis

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