document.write( "Question 89871: Rowing with the current, a canoeist paddled 14 miles in 2 hours. Against the same current he could only paddle 10 miles in the same amount of time. What is the rate of the current in mph? \n" ); document.write( "
Algebra.Com's Answer #65229 by stanbon(75887)\"\" \"About 
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Rowing with the current, a canoeist paddled 14 miles in 2 hours. Against the same current he could only paddle 10 miles in the same amount of time. What is the rate of the current in mph?
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\n" ); document.write( "Let current speed be \"c\"; Let boat speed in still water be \"b\".
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\n" ); document.write( "Downstream DATA:
\n" ); document.write( "distance = 14 miles ; time = 2 hrs; rate = d/t = 7 mph
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\n" ); document.write( "Upstream DATA:
\n" ); document.write( "distance = 10 miles ; time = 2 hrs; rate = d/t = 5 mph
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\n" ); document.write( "EQUATIONS:
\n" ); document.write( "b+c = 7 mph
\n" ); document.write( "b-c = 5 mph
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\n" ); document.write( "Add the two to get:
\n" ); document.write( "2b = 12 mph
\n" ); document.write( "b = 6 mph (speed of the boat in still water)
\n" ); document.write( "c = 1 mph (speed of the current)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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