What is the inequality sign for “at least”?

What is the inequality sign for “at least”?

Final Answer:

The inequality sign for “at least” is “greater than or equal to,” represented as ≥. For example, if a variable x is at least 9, it can be expressed as x≥9. This means x can be 9 or any value greater than 9.

Explanation

In mathematics, the phrase “at least” is represented by the inequality sign for “greater than or equal to,” which looks like this: ≥.

This means that a certain value must be equal to or greater than a specified number. For example, if we say “x is at least 9,” we can express this in mathematical terms as:

x≥9

This indicates that the value of x can be 9 or any number larger than 9. The same principle applies in various scenarios, such as defining limits or requirements in mathematical problems and real-life situations.

Examples & Evidence

An example is if you have a rule that a student must have at least 75% to pass a test. This can be written mathematically as score≥75.

The concept of “greater than or equal to” as representing “at least” is a standard notion in inequality notation in mathematics, commonly taught in middle school mathematics.

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