SOLUTION: 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 do

Question 48221This question is from textbook College Algebra
: 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?
Thank you so very very much! This question is from textbook College Algebra

Answer by checkley71(8403) (Show Source): 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
THEN THE BOAT SPEED IS 20-6=14 MPH.
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