Quote (King-Punisher09 @ Aug 27 2013 05:19pm)

hello

can anyone tell me HOW to find X?

I already know the answer is -5, I figured it out with trial and error, but if it were a more difficult question, then I would not be able to.. Is there some kind of noob formula to figure it out?

http://i.imgur.com/Q43QjrS.png


Also, is there an easy way to convert a decimal like that into a fraction?

Quote (Whiskers @ 27 Aug 2013 21:24)

First, find the log of 0.03125, then find the log of 2
After that, just solve for X, so you will divide the 1st number by the 2nd number
edit: You can simplify it by just typing something like this into your calculator -> (log(0.03125)/log(2))

Quote (brmv @ Aug 27 2013 11:47pm)

how to do it the easy way when you can make it complicated?

divide 1 by 0.03125 and you get 32 which is then 2^-x
and who doesn't know that 32 is 2^5?

Quote (brmv @ 28 Aug 2013 08:47)

how to do it the easy way when you can make it complicated?

divide 1 by 0.03125 and you get 32 which is then 2^-x
and who doesn't know that 32 is 2^5?