document.write( "Question 578251: In a white water relay race, one kayak team averaged 26 km/h downstream but only 6 km/h upstream in the white water course. What was the rate of the kayak in still water? What was the rate of the current? \n" ); document.write( "
Algebra.Com's Answer #370657 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! n a white water relay race, one kayak team averaged 26 km/h downstream but only 6 km/h upstream in the white water course. \n" ); document.write( " What was the rate of the kayak in still water? \n" ); document.write( ": \n" ); document.write( "Let s = kayak speed in still water \n" ); document.write( "Let c = rate of the current \n" ); document.write( ": \n" ); document.write( "From the information given, we know: \n" ); document.write( "downstream: s + c = 26 \n" ); document.write( "and \n" ); document.write( "upstream: s - c = 6 \n" ); document.write( ": \n" ); document.write( "We can use elimination here: \n" ); document.write( "s + c = 26 \n" ); document.write( "s - c = 6 \n" ); document.write( "-----------adding eliminates c, find s \n" ); document.write( "2s = 32 \n" ); document.write( "s = 16 km/hr in still water \n" ); document.write( ": \n" ); document.write( "\"What was the rate of the current?\" \n" ); document.write( "16 + c = 26 \n" ); document.write( "c = 26 - 16 \n" ); document.write( "c = 10 km/hr is the rate of the current. \n" ); document.write( " |