Question

How do you translate word phrases "there must be at least a hundred" into algebraic expressions?

Answer 1

`n >= 100`

Explanation:

This phrase seems like it is talking about a count of items rather than some kind of continuous measurement. So choose a variable name like `n`, which would typically be used to stand for an integer quantity, rather than `x` or `z`, etc.

If you wanted to be explicit about `n` being an integer, you could write `n in ZZ`, which means `n` is in the set of all integers (`ZZ`).

The compound symbol `>=` means that the expression to the left is greater than or equal to the expression on the right.

In our case `n >= 100` means `n` is greater than or equal to `100`.

In other words `n` is at least one hundred.