Why would a person raised using base 9 think of mathematical concepts using base 10? Why would they think of percents the same why you do? Why wouldn’t you think of percents the same way they do?
Your position now has the same problem it had at the very start: you keep putting base 10 into a privileged position, and you’re only doing that for one reason: it’s the base you’re used to using.
Why would a base 10 person claim that a base 9 person can evenly divide 1 by 3 and get .3???
YOU are the one that started talking about a base 9 person’s world. I am converting the numbers for you to show you what they are equivalent to in their world.
Our base 10 world’s 33.333…% is equivalent to their base 9 world’s .3. They are both 33.333…% of a whole.
There’s a version of you in some world far away, where people’s left hands has 4 fingers but their right hands have 5, and that version of you was raised using base 9.
And there’s a version of me on that planet, arguing with you that base 8 is just as valid as base 9. And you’re insisting to me, on this planet, that dividing into 4 is nonsensical, but dividing into 3 makes perfect sense, because it’s just 0.3! And I’m telling you, no dude, dividing into 4 makes perfect sense in base 8, in base 8 it’s 0.2.
But that version of you is using the base 9 version of percents and insisting that, no no no, it’s impossible to split 1 into 4.
I wonder how the base 9 version of you would get along with the base 10 one. I know the base 9 version of me would find what I’m saying to be quite agreeable, but your base 9 alter ego would not be able to understand how you could keep in insisting that 1/4 is valid, when it’s clearly an infinite decimal.
In base 10:
1 finger is .1 of the total fingers
2 fingers is .2 of the total fingers
.
.
.
9 fingers is .9 of the total fingers
10 fingers is 1.0 of the total fingers.
There is not “10”, there is .9, and 1 more finger makes 1.0
“13”, “thirteen” and “one times ten and three times one” are equivalent expressions that represent one and the same NUMBER. Yes, as strange as it may sound to you, 13 is a number. An unlucky number but still a number.
And it seems like you’re confusing DIGITS and NUMBERS. 13 is not a digit. 9 is but there is no digit 9 in base 9. Still, there IS number (9_{10}) in base 9. It’s (10_9).
The word and idea of “percent” happens (for whatever reason) to specifically refer to base 10 - “1/100” - one out of one hundred base 10 - nothing else.
Teach base 8 to a few 100 million people on another planet and they can have their own language where “percent” means 1 out of 80. In the mean time —
Wrong. What you are writing and saying when you write 13 is 1 in the Tens decimal place, and 3 in the Ones decimal place. There is no “times” or multiplication, there is the number 3 in the Ones decimal position.
It’s not 3 times 1 added to 1 times 10. It is a 1 in the Tens, and a 3 in the Ones.
There is no such animal as the number “Thirteen.” That is a word to describe what I just described, the decimal 013.0
In base 10, 1/3 means 1.0 of 3.0. Do the division and you end up stuck trying to finish it for the rest of your life. We’ll just say that you made it to .333… and then kicked the bucket, with a remainder that still needed to be divided by 3.
You can’t finish the division of 1 divided by 3. Impossible!
The percent thing is an entire red herring. For most of the conversation, things were represented in decimal form, or in fraction form. 1/3 or 0.333… Bringing in “percents” like it’s some sort of new, unused and unbiased format is… not correct.
The “percent” format is literally just the base 10 decimal format, times 100, with a % symbol smacked after it. It didn’t add anything new to the conversation that wasn’t already covered by decimal representation.
What is a “10” ? There is no number 10, that is a 1 in the Tens and a 0 in the Ones. Just because you drop the decimal point and lose the 0’s doesn’t mean it’s not decimal form.