document.write( "Question 1056020: A paddle boat can move at a speed of 2 ​km/h in still water. The boat is paddled 14
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\n" ); document.write( "km downstream in a river in the same time it takes to go 7 km upstream. What is the speed of the​ river?
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Algebra.Com's Answer #671227 by MathTherapy(10551)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "A paddle boat can move at a speed of 2 ​km/h in still water. The boat is paddled 14
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\n" ); document.write( "km downstream in a river in the same time it takes to go 7 km upstream. What is the speed of the​ river?
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Let speed of the current be C
\n" ); document.write( "We then get: \"14%2F%282+%2B+C%29+=+7%2F%282+-+C%29\"
\n" ); document.write( "14(2 - C) = 7(2 + C) ------- Cross-multiplying
\n" ); document.write( "28 – 14C = 14 + 7C
\n" ); document.write( "– 14C – 7C = 14 – 28
\n" ); document.write( "– 21C = - 14
\n" ); document.write( "C, or rate of current = \n" ); document.write( "
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