a boat can travel 40 miles against a current in the same time it can travel 160 miles with the current. the rate of the current is 3 mph. find the rate of the boat in still water
Added by Susan N.
Step 1
When the boat is traveling against the current, its effective speed is b - 3 mph (since the current is working against it). When the boat is traveling with the current, its effective speed is b + 3 mph (since the current is helping it along). We know that Show more…
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