Question

- Math rearrangment!

Answer 1

What is your question?

Answer 2

1.) need to get change in pressure (delta p)
2.) need to get meu

Answer 3

I don't know what you want me to do. You are given the equations.

Answer 4

I need to rearrange first to isolate Delta P.

I need to rearrange second to isolate Mu (under line)

Answer 5

Do you know cross-multiplication? You can cross multiply.

Answer 6

Ok

Answer 7

here check this out, and it also tells you where cross-multiplication comes from

Answer 8

https://www.mathsisfun.com/algebra/cross-multiply.html

Answer 9

I tried above? Correct?

Answer 10

Yes that's correct.
But you could have done it faster by multiplying by L2 in the 2nd step to save some writing

Answer 11

Could you help with the Mu? Thanks so much :)

Answer 12

Yeah, do you know that \[\frac{ a }{ b }*\frac{ c }{ d }=\frac{ ac }{ bd }\]

Answer 13

Yes

Answer 14

So you can combine the right side into one fraction. Then multiply by 8muL. Finally Q8L to get mu by itself.

Answer 15

Mu = Pi . R^4 . DeltaP / 8LQ?

Answer 16

Yes that's correct

Answer 17

Thanks Anthony :)