Where is the question? reply to my comment and i can help :)
Answer:
what is this?
Step-by-step explanation: you need to give use a better exlanation of the problem
<span>The equation given as p varies directly with d and inversely with the square root of u is written as:
</span>
p = k1d
k1 is the proportionality constant.
and p = k2

here k2 is the proportionality constant.
Thus,
combining both equations we get, p = C

where K = K1*K2, K is the proportionality constant.
Answer:
x = 2
Step-by-step explanation:
As we can see that the diagonals bisects so
LN = 20
UN = 20 /2 = 10
So Now
UN = 5x
10 = 5x
x = 10 / 5
x = 2