## Having a Hard Time Decyphering This

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
AaronW84
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Joined: Fri Jun 13, 2014 2:12 pm
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### Having a Hard Time Decyphering This

Can someone explain how this:

Operating Margin= pQ - (F + vQ) / pQ

Got to this, solving for Q:

Q = F / p (1 - v/p - (operating margin))

Any help with the step by step solution would be very much appreciated!

buddy
Posts: 197
Joined: Sun Feb 22, 2009 10:05 pm
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### Re: Having a Hard Time Decyphering This

Can someone explain how this:

Operating Margin= pQ - (F + vQ) / pQ

Got to this, solving for Q:

Q = F / p (1 - v/p - (operating margin))
I cant read it with the words so I'm doing like this:

$M = pQ - \frac{F + vQ}{pQ}$

$Q = \frac{F}{p}\left(1 - \frac{v}{p} - M\right)$

But if you plug in p = 1, Q = 2, F = 3, v = 4 (these are just numbers I picked out of the air), you get two different numbers for M so the 2nd eqn can't be just a rearrangement of the 1st. You cant get from 1st to 2nd.