we are given
A woman walks due east on the deck of a ship at 4 mi/h.
the ship is moving south at a speed of 24 mi/h
so, firstly, we will draw diagram
so, we have
[tex]OW=4[/tex]
[tex]OS=24[/tex]
now, we can use Pythagoras theorem
[tex]SW^2=OS^2+OW^2[/tex]
now, we can plug values
and we get
[tex]SW^2=24^2+4^2[/tex]
[tex]SW=24.33[/tex]
so,
the speed of the woman relative to the surface of the water is 24.33 mi/h .......Answer