I am trying to figure out this progression from a book I am reading and not having a lot of luck.

A is proportional to B^2.8

A is proportional to B x C^2

Therefore A is proportional to C^3.1

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- Jul 28th 2011, 05:24 AMRodBrownWorking with powers
I am trying to figure out this progression from a book I am reading and not having a lot of luck.

A is proportional to B^2.8

A is proportional to B x C^2

Therefore A is proportional to C^3.1 - Jul 28th 2011, 05:58 AMSironRe: Working with powers
You have to be more clear with your notation:

$\displaystyle A$ is proportional to $\displaystyle B^{2,8}$

$\displaystyle A$ is proportional to $\displaystyle B\cdot C^2$

Therefore $\displaystyle A$ is proportional to $\displaystyle C^{3,1}$

Is this the exercice? - Jul 28th 2011, 06:42 AMRodBrownRe: Working with powers
My apologies, yes that is the exercise.

- Jul 28th 2011, 08:56 AMPASCALfanRe: Working with powers
I think this is gives the solution

- Jul 30th 2011, 01:24 AMRodBrownRe: Working with powers
Aha, Thank you PASCALfan, now I can see where I was going wrong, again thank you very much.