Romans

In Roman numeral when I is on the lef you subtract 1. X=10 and IX=9 so 19

since X stands for 10 and IX stands for 9 therefore 10+9=19

In Roman numeral XIX, it can be taken in two ways as an assumption:

1. For XIX, X=10 and IX=9 which sums up to 19.

2. For XIX, XI=11 and X=10 which sums up to 21 but Roman numeral XXI=21.

Hence from 1. we can say that XIX=19.

In Roman Numeral X denoted 10 and IX denoted 9, so its 19 for XIX

X=10 AND IX=9 so 19

it is common that,

XIX = 19

X stands for 10 in roman number and IX stands for 9 in roman numbers

XIX=10+9=19

X = 10 IX = 9 Total = 19

in roman X = 10 and IX= 9 so, XIX = 19

X- Represents 10, then IX- represent 9, since I is to the left(subtracting 1 from a next term )

In roman IX=9 and X=10 so after X is XI viz 11 so XIX=19