Question

Two boats are racing with constant speed toward a finish
marker, boat A sailing from the south at 13 mph and
boat B approaching from the east. When equidistant from
the marker, the boats are 16 miles apart and the distance
between them is decreasing at the rate of 17 mph. Which
boat will win the race?

I know boat A wins. I need to know all the intermediate steps though! Please help if you can. My professor didn't explain this boat one very well and my textbook only shows examples with different types.

Answer 1

It is a rates of change problem by the way

Answer 2

@timo86m