Question 978813
The rate in which a river flows is measured in miles per hour.
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No, it's measured in knots.
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 If a boat travels at a speed of 15 miles per hour down stream and reaches its destination sooner than expected, explain what effect the current had on the rate of the boat.
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Did the people not know about the current?
Why would they arrive sooner than expected?
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What is "the rate of the boat?"  With respect to what?  The water?  The Earth?  Some other boat?  The people on the boat?
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People who don't know what they're talking about should remain in politics, not try to write math problems.