SOLUTION: help me please in solving this problem. Thank you a cabin cruiser travels 48 miles upstream (against the current)and 48 miles downstream (with the current). The speed of the cur

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Question 877438: help me please in solving this problem. Thank you
a cabin cruiser travels 48 miles upstream (against the current)and 48 miles downstream (with the current). The speed of the current is 4 miles per hour
a. Write an expression for the cruiser going upstream and write an expression for the cruiser going downstream
Tnx
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
a cabin cruiser travels 48 miles upstream (against the current)and 48 miles downstream (with the current). The speed of the current is 4 miles per hour
a. Write an expression for the cruiser going upstream and write an expression for the cruiser going downstream
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An expression for what? The length of the boat? The # of people on it?
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The speed, maybe?
The time up & downstream?
b = boat's speed
c = speed of the current
Upstream time = 48/(b - c)
Downstream time = 48/(b + c)