Maths Help

[Shaman]

I've been staring at this for hours as I appear to have forgotten how to solve equations!

From

V = (E/C*R)*t

I need to solve for C

And I get

C = V*t*R/E which gives me an answer that is way too high. For some reason the addition of the parentheses is stumping me. Should I be multiplying out the first before multiplying each side as per BODMAS?

Any help appreciated. The answer is probably glaringly simple but my head is spinning.

Dan

[Stu R]

C= E T / R V

Probably worth checking it on Wolfram Alpha or something

Edited by Stu R on Tuesday 23 October 06:52

[Shaman]

Cheers

What's wolphram alpha?

Where was I going wrong?

[Halmyre]

I get C = ET/RV or C = RT/EV depending on how I handle the E/C*r part. Is it supposed to be (E/C)*r or E/(C*r)?

[Shaman]

It's v=(E/(c*r))*t

[Halmyre]

Shaman said:

It's v=(E/(c*r))*t

OK, so v/t = E/(c*r) then c*r = (E*t)/v and c = (E*t)/(v*r)

[Shaman]

Cheers

[CaptainSlow]

I get

c = e/((v/t)/r)

I guess that is wrong then.

[mrmr96]

v=(E/(c*r))*t
v=e/(cr)*t
v=et/cr [Now x both sides by cr]
crv=et [Now divide both sides by rv]
c=et/rv

[Shaman]

Cheers

I seemed to hit a mental block when trying to re-arrange it! All sorted now.