What is the Roman numeral representation of the number 39?

The Roman numeral representation of the number 39 is represented as XXXIX. To understand why this is correct, we can break down the components of the numeral.

In Roman numerals, the letter "X" represents 10, and "I" represents 1. To form the number 39, we need to combine these values:

• The three "X's" represent 30 (10 + 10 + 10).

• The "IX" at the end represents 9, which is formed by placing "I" before "X" to denote that 1 is subtracted from 10.

When we put these components together—XXX for 30 and IX for 9—we arrive at XXXIX, which equals 39. This allows us to see the proper application of Roman numeral conventions in creating values.

The other options do not represent the quantity of 39. XXXVIII stands for 38, XL signifies 40, and XXXVII represents 37, demonstrating the systematic way Roman numerals are constructed. Thus, XXXIX is the proper representation for the number 39.