document.write( "Question 393571: Paddled For 3 Hours With A 7 Km/h Current To Reach A Campsite. The Return Trip Against The Current Took 10 Hours. Find The Speed Of The Boat In Still Water? \n" ); document.write( "
Algebra.Com's Answer #279332 by mananth(16946)\"\" \"About 
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Paddled For 3 Hours With A 7 Km/h Current To Reach A Campsite. The Return Trip Against The Current Took 10 Hours. Find The Speed Of The Boat In Still Water?
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\n" ); document.write( "speed of boat in still water =x
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\n" ); document.write( "with current speed = x+7: time = 3 hours
\n" ); document.write( "against , speed = x-7: time = 10 hours
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\n" ); document.write( "distance = speed * time
\n" ); document.write( "3(x+7)=10(x-7)
\n" ); document.write( "3x+21=10x-70
\n" ); document.write( "7x=91
\n" ); document.write( "x=13 km/h speed of boat
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\n" ); document.write( "m.ananth@hotmail.ca
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