document.write( "Question 386825: A boats crew rowed 7.5 miles downstream, with the current,in 1.5 hours. The return trip upstream, against the current,coverred the same distance, but took 2.5 hours.Find the crews rowing rate in still water at the rate of the current. \n" ); document.write( "
Algebra.Com's Answer #276090 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 7.5/1.5 = 5 mph downstream \n" ); document.write( "7.5/2.5 = 3 mph upstream \n" ); document.write( "The rowing speed is the average \n" ); document.write( "= (5+3)/2 = 4 mph \n" ); document.write( "------------ \n" ); document.write( "The current is the difference = 1 mph \n" ); document.write( " \n" ); document.write( " |