document.write( "Question 1044093: The current in a river was 3 mph. Jim could canoe downstream on this river for 92 miles in the same time it took him to canoe 68 miles upstream. How long did each trip take, and what was Jims rowing speed in the canoe? \n" ); document.write( "
Algebra.Com's Answer #659331 by jorel555(1290)![]() ![]() ![]() You can put this solution on YOUR website! Let n be Jim's rowing speed in still water. Then: \n" ); document.write( "68/n-3=92/n+3 \n" ); document.write( "92(n-3)=68(n+3) \n" ); document.write( "92n-276=68n+204 \n" ); document.write( "24n=480 \n" ); document.write( "n=20 mph in still water \n" ); document.write( "68/17=4 hours rowing upstream \n" ); document.write( "92/23=4 hours rowing downstream. ☺☺☺☺ \n" ); document.write( " |