Posted by joe on Monday, July 22, 2013 at 5:05pm.
The speed of your ship in still water is 20 knots.Your ship traveled 70 miles downward in channel in the same amount of time it traveled 45 miles upward the channel.Calculate the rate of the channel current.

chem  Steve, Monday, July 22, 2013 at 5:10pm
since time = distance/speed, and the times are equal,
Assuming nautical miles, so knots make sense,
70/(20+s) = 45/(20s)
s = 100/23 = 4.35 knots
Answer This Question
Related Questions
 Trigonometry  Navigation A ship leaves port at noon and has a bearing of S 29° ...
 Physics  At the entrance channel of a harbor, the tidal current has a velocity ...
 Physics  At the entrance channel of a harbor, the tidal current has a velocity ...
 Physics  At the entrance channel of a harbor, the tidal current has a velocity ...
 Algebra  A ship traveled 150 km with the current, and then turned around and ...
 math  to avoid a large shallow reef, a ship is set a course from point a and ...
 Maths calculus  Two ships leave different ports A and B 100 miles apart at ...
 Math  a boat traveled against the current for 70 miles for the sane time it ...
 Math  A ship leaves England for the Strait of Magellan. It is traveling at a ...
 math  Erika spent5/6 hr. on her computer visiting the History Channel and the ...
More Related Questions