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Earn +20 ptsQ: What is an unknown quantity usually represented by a letter called?
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Continue Learning about Algebra
An unknown or changeable quantity is called?
Variable
What is a symbol that stands for an unknown quantity is called?
Variable
Relationship can also be represented by a set of ordered pairs called a?
Relationship can also be represented by a set of ordered pairs called a function.
What does the b stand for in an equation?
In an equation b or any other letters usually denotes the unknown variable.
What is an unknown or changeable quantity called?
An unknown or changeable quantity is a variable. We use variables when we don't know what a certain amount is, and they're usually referred to as "x," or "y."For example, if I had a problem where I needed apples, had $15, and knew that each apple was $1.50, I would use a variable to see how many apples I could buy (because right now that's an unknown number). I could solve it by writing 1.50x =15 to find my answer (which is x =10).
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