document.write( "Question 1128989: A kayak can travel 16 miles downstream in 2 hours, while it would take 4 hours to make the same trip upstream. Find the speed of the kayak in still water, as well as the speed of the current. Let k represent the speed of the kayak in still water, and let c represent the speed of the current. \n" ); document.write( "
Algebra.Com's Answer #745527 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A kayak can travel 16 miles downstream in 2 hours, while it would take 4 hours to make the same trip upstream. Find the speed of the kayak in still water, as well as the speed of the current. Let k represent the speed of the kayak in still water, and let c represent the speed of the current. \n" ); document.write( "----- \n" ); document.write( "Downstream:: rate = 16/2 = 8 mph \n" ); document.write( "Upstream ::: rate = 16/4 = 4 mph \n" ); document.write( "------- \n" ); document.write( "Equations: \n" ); document.write( "Downstream:: rate of boat + current = 8 mph \n" ); document.write( "Upstream ::: rate of boat - current = 4 mph \n" ); document.write( "------ \n" ); document.write( "Solve for current by subtracting:: \n" ); document.write( "2*current = 8-4 \n" ); document.write( "Ans: Current = 4/2 = 2 mph \n" ); document.write( "----------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------------- \n" ); document.write( " |