# 10 centime value?

The centime was a unit of money in France for centuries, so the date on your coin is an important piece of information that you need to know before assigning a value.

If the coin is recent, i.e. after 1960, it's a common circulation coin worth only a few cents in the U.S. If the date is earlier, please post a new question with its date and an estimate of how worn it is.

### How do you substitute values in a formula?

It means that if you know the value of a variable, you replace every occurence of the variable with the value. For example, if x = 10, and you have the expression x2 + 5x - 3, you replace every x with 10, to get 102 + 5(10) - 3. It means that if you know the value of a variable, you replace every occurence of the variable with the value. For example, if x…