After resting they decided to go for a swim. The depth of the water is w times Dean's height. Dean is x feet taller than Ron. If Ron stands at y feet How deep was the water?
First, we can solve for w in terms of x and y. We know that Dean is x feet taller than Ron, so we can set up the equation:

w(x+y) = y

Now we can solve for w:

w = y/(x+y)

Now we have w in terms of x and y. We can plug this back into the original equation to solve for the depth of the water:

w(x+y) = y

y/(x+y)(x+y) = y

y = y/(x+y)

y = 1/(1+x/y)

Now we have the depth of the water in terms of x and y.