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) You can put this solution on YOUR website! 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( "... \n" ); document.write( "speed of boat in still water =x \n" ); document.write( ".. \n" ); document.write( "with current speed = x+7: time = 3 hours \n" ); document.write( "against , speed = x-7: time = 10 hours \n" ); document.write( "... \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 \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |