slove for X: pc/x=c/p (don't remember where to start)

krislaf

New member
Joined
Nov 3, 2008
Messages
3
Trying to help my son with this problem & I can't remember where to start. Here's the problem

Slove for X

pc/x=c/p
 

mmm4444bot

Super Moderator
Staff member
Joined
Oct 6, 2005
Messages
10,251
Re: I have no clue where to start with this problem



Start by getting the symbol for which you are trying to solve out from the denominator of a fraction.

We do this by multiplying both sides of the equation by x.

If you need more help with this exercise, then please show any work that you've been able to accomplish and try to say something about why you're stuck.

Cheers,

~ Mark :)

 

fasteddie65

Full Member
Joined
Nov 1, 2008
Messages
360
Re: I have no clue where to start with this problem

This is a classic proportion.

pc/x=c/p

Multiply means and extremes: c • x = p • pc

cx= p^2 c

Divide by c.

x = p^2
 

mmm4444bot

Super Moderator
Staff member
Joined
Oct 6, 2005
Messages
10,251
Re: I have no clue where to start with this problem

fasteddie65 said:
This is a classic proportion ...


Hey Fast Eddie:

Unless c = classic and p = proportion, please cite your source. :wink:

On a more serious note, I believe that beginning algebraists should focus on multiplicative and additive inverses, prior to learning means and extremes.

Cheers,

~ Mark :)

 

krislaf

New member
Joined
Nov 3, 2008
Messages
3
Re: I have no clue where to start with this problem

Thanks for all your help. My son was able to get the answer by starting with multipling both sides by x. Having a son in algerbra sure has been a refresher for the brain!
 
Top