X = Y - (Y x Z), given: X = 28,300 and Z = 0.15, what is Y
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X = Y - (Y x Z), given: X = 28,300 and Z = 0.15, what is Y
For me it's 33294,11 unless this is some kind of a joke. I'm no great mathematician either.
same as above
Thanks. Can you provide the solution of how you got to the answer?
substitute the given values of z and x
28300 = y - 0.15(y)
28300 = 0.85(y)
transpose
y = 33294.11
X = Y- 0.15Y
X = 0.85Y
Y = X/0.85
Or.....
Y = Hondacitys post. Dare you to write that :p:
This is y'know..... day 1 of algebra stuff :) You just starting out? :)
Post us some moar :D
duh, Y = the 25th letter of the alphabet.
I'm bad at math, so the equation 2n+2n is 4n to me.
Better get a good handle on that algebra. Its nothing compared to multi-variable calculus (calc 3).
Although, I maybe cannot really justify that statement. After you get a handle on calc `1 & 2, calc 3 "seemed" to actually get easier. Hell i had a harder time with Trig then I did with calc. It took alot of work, for me at least, to remember all those damn trig identities.
Calculus 3 is just calculus 1 with multivariables. :banana::banana::banana::banana:, is not that hard unless your are focusing on some of the proofs.
I have no idea, I did trade and business maths. The dumb maths.
lol :DQuote:
Originally Posted by Gunslinger
ROFL!!! :rofl:Quote:
Originally Posted by Gunslinger
At first I couldn't figure it out, and it bugged me so I got out a piece of paper and some math information began to switch back on in my brain :p:
So:
X = Y - (Y x Z)
Fill in knowns - 28300 = Y - (Y * 0.15)
Simplify1 - 28300 = Y - (0.15Y)
Rewrite as addition - 28300 = 1Y + -0.15Y
Simplify2 - 28300 = 0.85Y
Divide - 28300/0.85 = 33294.12
Y = 33294.12
Answer checking:
28300 = 33294.12 - (33294.12 * 0.15)
28300 = 33294.12 - (4994.12)
28300 = 28300
TI-83 confirms answer correct :) (I actually copied this wrong the first time with X = 23800 which actually results in much nicer round numbers)
calc 3 change the coordinate system and everything becomes the triple integral of 1 ;pQuote:
Originally Posted by matari
I solved it in a ridiculous silly way, but got the same answer for y. Apparently solving simple equations for me is like creating a storm in a glass of water.
y = x/(1-z)
That to me seems the easiest solution as well.Quote:
Originally Posted by Kallenator