Question 706103
Notice these things about the data:

x=5*n, y=1/n, and also n=x/5


Possibly try y=(1/n)(5n/(5n))
y=5n/(5n^2)= 5(x/5) over 5(x/5)^2,...
y=5/x


On initial checking, y=5/x seems to work.  Make a table of x and y.  Factor the x values.  Look for a pattern and compare to the y values.  That was how I started to find the three relations shown way above.