rafgas

Thanks imatfaal. I didnt realize that means i can take one "unit" of .1818 away from the 100 units i started out with. so i felt very stupid for a while. which is ofcourse what The observer tried to tell me, but i blocked on the "where did the 1*0.18 come from", >.<

I dont understand, the 1*0.181818... isnt mentioned in the book. it goes straight from 100*0.18...=18.18... "Subtracting 0.18... from both sides of the equation gives : 100*0.18... - 0.18... = 18.18...-0.18... That is : 99 * 0.18... = 18" I mean, the logic of your calculation seems correct, but why isnt it explained? it seems im missing something in either case. So the step you added "1*0.18..." isnt in the book, but comes to the same conclusion. Not to mention, the book doesnt subtract 1 from each side, it subtracts 0.18... 0.18... - 100 is 99.818181... not 99

Hello all, im sorry for stealing this topic, but i ran into a problem on the exact same page, but my only problem is how come So, same exact example. (i dont know how to do the points above the 18 to signify the repeating 18's. so ill just use the three dots to signfy repeating, even if its a little false). 100*0.18... = 18.18... Subtracting .18... from both sides yields 100 * 0.18.. - 0.18... = 18.18... - .18... that is 99 * .018... = 18.0 what? 0.18...-100 != 99 Where does the 99 come from? I see from the next few examples that it always seems to be 1000-0.0315... = 999. So i figure i could go ahead and just always go down one integer and be fine, but i want to understand it, if i dont understand, the chances of forgetting it are infinitely larger! Anyway, thanks again, sorry for bad formatting of the numbers, and sorry for hijacking the thread. /Rafgas