Madison8h8
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4) FRIDAY: An unknown quantity which is represented by a letter or a symbol is called _____
-extraneous
-a constant
-a variable
-None of these

Respuesta :

Answer:

A Variable

Step-by-step explanation:

Variables are used to mark an unknown value. Common math problems ask you to solve for it.

For example in 5x+23=45, 'x' is the variable.

A constant is a number without a variable.

Brainilest Appreciated.

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