ok im trying to rearrange:
y=w x r x 0.0333 + w
so that the subject is r but its been so long since i did maths i cant do it and i've been trying for a while now im a bit annoyed right now , has anyone got the time to teach me how to rearrange it?
ok im trying to rearrange:
y=w x r x 0.0333 + w
so that the subject is r but its been so long since i did maths i cant do it and i've been trying for a while now im a bit annoyed right now , has anyone got the time to teach me how to rearrange it?
Its just order of operations
1.) Move w to the otherside
y-w = w x r x 0.0333
2.) Divide by w and the constant
(y-w) /(wx0.0333) = r
3.) flip it if you want to make it look more conventional
r = (y-w) /(wx0.0333)
Though I am not 100% sure if this is what you mean by the "subject". This is the form of making r the dependent, or in other words writing r in terms of y and w. You could also divide out the w in the denominator but that is not necissarily a simplier form, though it is more elegant in this case:
r = 30(y/w - 1)
Last edited by Sphere; November 23, 2010 at 02:52 PM.
Subtract w from both sides and then divide both sides by 0.0333w. Then r equals y-w divided by 0.333 w.
(beaten by one minute)
An army of rabbits led by a lion will always overcome an army of lions led by a rabbit. Napoleon
-w both sides
× 1/w
× 1/0.0333
Edit: Argh dammit, this doesn't support the insert equation function
In a way Agent Miles is *more* correct. Once you think in terms of you are doing, is to do to both sides equally, algebra becomes a lot easier.
Last edited by Plant; November 23, 2010 at 03:14 PM.
Smilies...the resort of those with a vacuous argument
math is so hard. btw what kind of math is that? Algebra?