document.write( "Question 193696: Ben owns a house on a river. The river flows at 3 mph. Ben decides to start rowing downstream, with a current, at noon. He wants to return to his house at 5 P.M. At what time should Ben turn around and row home if he normally rows 5 mph in water that has no current?\r
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document.write( "Your help is appreciated. \r
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document.write( "Thanks.. \n" );
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Algebra.Com's Answer #145451 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Ben owns a house on a river. The river flows at 3 mph. Ben decides to start rowing downstream, with a current, at noon. He wants to return to his house at 5 P.M. At what time should Ben turn around and row home if he normally rows 5 mph in water that has no current? \n" ); document.write( "--------------------------------- \n" ); document.write( "Roundtrip DATA: \n" ); document.write( "time = 5 hrs ; average rate = 5 mph ; distance = rt = 25 miles \n" ); document.write( "-------------------------------- \n" ); document.write( "Downstream DATA: \n" ); document.write( "distance = 12.5 miles ; rate = 8 mph ; time = d/r = 12.5/8 = 1.5625 hrs \n" ); document.write( "---------------- \n" ); document.write( "0.5625*60 min = 33 min 45 sec \n" ); document.write( "----------------------------------- \n" ); document.write( "He should turn around at 1:33 + 45 sec. \n" ); document.write( "============================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |