Because in ancient Rome I) meant 1*500 = 500 and (I) meant 1*1000 = 1000 and over time they became D and M respectively
The letter "D" represents the number 500 in Roman numerals.
The 7 main Roman numerals are: M D C L X V and I
"D" in Roman Numerals equals 500.
16
V
D
The letter "D" represents the number 500 in Roman numerals.
The 7 main Roman numerals are: M D C L X V and I
7 of them and they are: M=1000, D=500, C=100, L=50, X=10, V=5 and I=1
d or D is a Roman numeral equivalent to 500
"D" in Roman Numerals equals 500.
16
LV
V
That is 29.
MCXVII
These are the basic Roman Numerals V = 5 X = 10 L = 50 C = 100 D = 500 M = 1,000 For example if you wanted 9 in Roman Numerals it would be IX or 4 would be IV...I hope this helps :)