document.write( "Question 114851: I need help with this problem: It is from Week by Week Mathematics Essentials
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\n" ); document.write( "\n" ); document.write( "Sean paddled upstream 3 hours to camp. The next day he makes the return trip downstream in 1 hour. Sean can paddled 2 mph in still water. How fast is the current?
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Algebra.Com's Answer #83548 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Sean paddled upstream 3 hours to camp. The next day he makes the return trip downstream in 1 hour. Sean can paddled 2 mph in still water. How fast is the current?
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\n" ); document.write( "Let the current speed be \"c\".
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\n" ); document.write( "Upstream DATA:
\n" ); document.write( "Time = 3 hrs ; Rate = 2-c mph ; Distance = rt = 3(2-c) miles
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\n" ); document.write( "Downstream DATA:
\n" ); document.write( "Time = 1 hr ; Rate = (2+c) mph ; Distance = rt = 2+c miles
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\n" ); document.write( "EQUATION:
\n" ); document.write( "distance up = distance down
\n" ); document.write( "6-3c = 2+c
\n" ); document.write( "4c = 4
\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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