Oh, dude, "ixx" in Roman numerals is not a thing. It's like saying, "Hey, I'm going to eat a pineapple Pizza with extra pineapples." It just doesn't exist in the Roman numeral world. If you want to represent the number 19, you'd use "XIX." So, yeah, "ixx" is a big nope in Roman numerals.
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Well, honey, in Roman numerals, "I" stands for 1. So if you double that, you get "II" which is 2. Put those together and you get "IIX." But hold up, that's technically incorrect because in Roman numerals, you can't have more than three of the same numeral in a row. So the correct way to write 8 in Roman numerals is "VIII."
In Roman numerals, "i" represents the number 1. When a numeral is repeated, it is added together. Therefore, "ixx" would be interpreted as "ix" (9) followed by "x" (10), resulting in a total of 19.
This math riddle relates to Roman Numerals where 19 is IXX, 1 is I, and 20 is XX. By removing I from IXX, you are left with XX.
IXX
Today the equivalent of 19 in Roman numerals are XIX But in ancient Rome they once were XVIIII or IXX In fact the Latin word for XVIIII is 'novemdecim' and the Latin word for IXX is 'undeviginti There is no equivalent Latin word for XIX
........___ VI/X/IXX XC I That line over IXX is crucial. remove/ignore the dots...
Due to rules made during the Middle Ages, today we write out 19 in Roman numerals as XIX. But the Romans themselves would have probably wrote out 19 as XVIIII and then simplified it to IXX. In fact the Latin word for 19 is "undeviginti" which literally means one from twenty. Hence: IXX*IXX = -I*IXX + XX*IXX = +I-XX-XX+CCCC = CCCLXI (361) In Hindu-Arabic numerals: -1(-1+20) + 20(-1+20) = +1-20-20+400 = 361