SOLUTION: A boat travels at 36 mph downstream. Against the current, the boat travels at 20 mph. How fast is the boat in still water and how fast is the current?
Be sure to tell me how fa
Algebra.Com
Question 718144: A boat travels at 36 mph downstream. Against the current, the boat travels at 20 mph. How fast is the boat in still water and how fast is the current?
Be sure to tell me how fast each one is. Don't just tell me your answers.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A boat travels at 36 mph downstream. Against the current, the boat travels at 20 mph. How fast is the boat in still water and how fast is the current?
------
Equations:
Downstream: b + c = 36
Upstream:: b - c = 20
----
Add and solve for "b":
2b = 56
b = 28 mph (speed of the boat in still water)
----
Solve for "c" using b + c = 36
28 + c = 36
c = 8 mph (speed of the current)
===================================
Cheers,
Stan H.
RELATED QUESTIONS
A ferry boat takes people up and down the river 40 miles between two towns. The boat... (answered by ankor@dixie-net.com)
a paddle boat travels 9 miles upstream (against the current) in the same time it travels (answered by jorel555)
the current in a stream moves at a speed of 10 mph. A boat travels 29 miles upstreamand... (answered by checkley77,solver91311)
The current in a stream moves at a speed of 3 mph. A boat travels 45 mi upstream and 45... (answered by nerdybill)
The current in a stream moves at a speed
of 4 mph. A boat travels 5 mi upstream and 13... (answered by josmiceli)
the current in a stream moves at a speed of 9 mph. a boat travels 4 mi upstream and 4 mi... (answered by TimothyLamb,josgarithmetic,MathTherapy)
the current in a stream moves at a speed of 9 mph. A boat travels 22 mi upstream and 22... (answered by lwsshak3)
The current in a stream moves at a speed of 7 mph.
A boat travels 38 mi upstream and 38 (answered by jorel555)
in still water a boat travels 15 mph. It takes same amount of time to travel 20 miles... (answered by htmentor)