Question 1055119
.
The pressure (p) in a liquid varies jointly as the depth (d) and the density (D) of the liquid. 
If the pressure is 33.5 lb/in^2 when the depth is 97 in. and the density is 2.2 lb/in^3, 
find the pressure when the density remains the same and the depth is 88 in. (Round your answer to one decimal place.)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


<pre>
The condition says that p = k*(D*d), where "k" is the proportionality coefficient, which is constant.

At these circumstances, k = {{{p/(D*d)}}} is the constant.


Therefore,

{{{33.5/(97*2.2)}}} = {{{x/(88*2.2)}}},

where "x" is the pressure under the question.


Solve for x and get the answer.
Start canceling the factor 2.2 in both sides.
</pre>