Anybody good at math?

[dUSt]

How do you figure out what X is:

654 divided by X equals 95.

[philothea]

~6.88

654/x = 95
654 = 95x
654/95 = x

[azaelia]

654/X = 95

654 = 95X

654/95 = X

X ~ 6.88

[azaelia]

arg someone beat me

[dUSt]

Wait. I asked the wrong question...

How do you figure out what percentage 95 is of 654.

[homeschoolmom]

Me too.

[dUSt]

95 is X% of 654. How do you do that?

[qfnol31]

14.52 %

You do 95/6.54

(95/654 *100%)

[philothea]

Yeah, or (95/654)*100 ~14.5%

Sorry for the delay, my cat started throwing up.

[dUSt]

You people are so smart.

[qfnol31]

Math was almost my major (engineering)....four years ago.

[philothea]

(sigh)

[Cow of Shame]

Whenever you have the word "of", it's equivalent of multiplying.

Break it down like this:

95 is X% of 654

95 = X * 654

Move all the numbers to one side of the = sign by dividing both sides by 654:

95/654 = (X* 654)/654

Since 654/654 = 1, you're left with

95/654 = X

To convert to a %, multiply by 100.

Now you can do it for yourself next time.


If you're doing a proof for a class, and have the correct answer (from the back of the book), but your work isn't coming out right, remember: you can always use the Sun constant

Multiply your answer by zero and add the correct answer.

Edited December 8, 2005 by Cow of Shame

[Anastasia13]

[quote name='Cow of Shame' date='Dec 8 2005, 03:53 PM']95/654 = X

To convert to a %, multiply by 100.[right][snapback]817396[/snapback][/right]
[/quote]
Yeah, that.

[photosynthesis]

i'm barely getting through math for plants and i can do this stuff...

y'all are restoring my confidence in my algebraic abilities

[Christie_M]

[quote name='dUSt' date='Dec 8 2005, 02:58 PM']You people are so smart.
[right][snapback]817307[/snapback][/right]
[/quote]


my head hurts now.

[kaidoh]

lol i love math

[photosynthesis]

[quote name='kaidoh' date='Dec 9 2005, 01:19 AM']lol i love math
[right][snapback]817784[/snapback][/right]
[/quote]
do you know anything about Hamilton's apportionment theory?

[Snarf]

Ah, the Sun Constant. I use vector/dimension-less constants all the time in physics problems.

One time in physics I didn't see that there was a provided equation to calculate the induced voltage of an electron orbiting a magnetic dipole, or something like that. So, I made my own! Except, I forgot that the critical traversed path was the circumference and not the radius, so when I was explaining this to my professor he was just like, "umm, you're off by two-pi. But, good effort." He must have thought I was an idiot-savant-idiot.

The funny thing is, I think my equation, once corrected, was much cleaner than the provided one. I just happened to make a leap-of-faith guess that happened to be empircally correct, and physicists try to not dwell on those.

[photosynthesis]