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VARIABLE. When this variable has a fixed number assigned to it and does not change, it is called a "fixed variable".

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What is a symbol used to represent a quantity that can change called?

It is called a variable.


What letter or symbol is used to represent an unknown quantity is called a?

The letter or symbol used to represent an unknown quantity is called a variable. In mathematics, variables are often denoted by letters such as x, y, or z. They are used in equations and expressions to stand in for values that can change or are not yet known.


What is a letter or symbol used to represent an unknown quantity?

A letter or symbol used to represent an unknown quantity is typically called a variable. In mathematics, common variables include letters such as ( x ), ( y ), and ( z ). These variables can stand for different values in equations and expressions, allowing for the representation of general cases and relationships between quantities.


What is the significance of using a particular symbol to represent an absence of quantity?

The use of a particular symbol, such as zero, to represent an absence of quantity is significant because it provides a clear and standardized way to denote nothingness in mathematical and scientific contexts. This symbol enables the distinction between the presence of a quantity and its complete absence, which is crucial for accurate calculations and logical reasoning. Furthermore, it facilitates the development of complex number systems and algebraic structures, allowing for advancements in mathematics and its applications across various fields.


What is symbol usually a letter that is used to represent an unknown quantity?

The symbol typically used to represent an unknown quantity is called a variable. In mathematics, common variables include letters like ( x ), ( y ), and ( z ). These symbols can stand for different values in equations and expressions, allowing for generalization and solving for unknowns. Variables are fundamental in algebra and help in formulating mathematical relationships.