Math
posted by newt .
When navigating their crafts, ship captains and airplane pilots can often be seen drawing lines on a large map?
A cruise ship is traveling in the Atlantic Ocean at a constant rate of
40 mi/h and is traveling 2 mi east for every 5 mi north. An oil tanker is
350 mi due north of the cruise ship and is traveling 1 mi east for every 1
mi south.
a. How far is each ship from the point at which their paths cross?
b. What rate of speed for the oil tanker would put it on a collision
course with the cruise ship?

If you look at the response to your previous question on airplanes, you may have a better idea how this similar question can be tackled.
http://www.jiskha.com/display.cgi?id=125415001
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