document.write( "Question 48221This question is from textbook College Algebra
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document.write( ": A boat on a river travels downstream between two points, 20 mi apart, in one hour. The return trip against the current takes 2 1/2 hours. What is the boat's speed, and how fast does the current in the river flow?\r
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Algebra.Com's Answer #31934 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! DOWNSTREAN THE RATE IS 20 MPH RETURN IS 20/2.5 OR 8 MPH THUS THE CURRENT IS 1/2 THE DIFERENCE IN THE 2 RATES OR (20-8)/2 OR 12/2=6 MPH FOR THE CURRENT \n" ); document.write( "THEN THE BOAT SPEED IS 20-6=14 MPH. \n" ); document.write( " |