Question

How do you write an inequality for the following statement. 3 is less than or equal to x?

Answer 1

`3 <= x`

Explanation:

In mathematical terms "is less than or equal to" is written as: `<=`.

So we can write 3 is less than or equal to x as:

`3 <= x`

Answer 2

`3 <=x`

Explanation:

Lets consider some examples

`2=2`
`2=3-1` and so on.

That deals with the equals bit

2 is less than 3 `-> 2<3`

The gap between the two lines of < on the right is much greater than the left. The greater gap indicates greater value. So reading left to right `2< 3` Stating the obvious; the 2 is less than the 3

or 3 is greater than 2 `-> 3>2`

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`color(blue)("Putting them together")`

Look at the order of the wording " 3 less than or equal to `x` "

Writing the numbers and symbols in the same order as the wording we have

`3 < =x` However, the correct format for this is `3 <= x`

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`color(blue)("Footnote")`

a less than b `" "->" " a < b`

a less than or equal to b `" "->" " a<=b`

a greater than b `" "->" "a>b`

a greater than or equal to b`->" "a>=b`

a not equal to b`" "->" "a!=b`