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Q: What is a letter or symbol used to represent unknown quantity called?
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What Expressions that use a letter to represent and unknown quantity?

Ah, I see you're curious about algebra, friend. Expressions that use a letter to represent an unknown quantity are called variables. They help us solve problems and equations by giving us a way to work with unknown values in a clear and organized manner. Just like adding colors to a painting, variables add depth and meaning to mathematical expressions.


What is an unknown quantity represented by a letter?

In mathematics, an unknown quantity represented by a letter is usually called a variable. Variables are used to symbolize values that can vary in an equation or formula. They allow us to write general expressions that can represent multiple possible scenarios.


What is a letter used to represent an unknown quantity?

Unknonwn quantity is any variable a,b,c or x,y


What is an unknown quantity usually represented by a letter called?

A variable.


What is the letter used to represent an unknown person called?

VARIABLE


What is the letter used to represent an unknown number called?

a variable.


Letter that represents an unknown quantity?

x= the unknown


What is a place holder usually a letter used to represent an unknown value called?

variable


What does X means in Mathematics?

X is the symbol for multiplication, as in 2X2=4 X (or any other letter) is often used to represent an unknown quantity.


What does a letter in an algebraic expression represent?

An unknown variable


a letter or symbol that is represent by unknown number?

b


The branch of mathemematics that nuses letter called variables in places of numerals?

Algebra uses letters to represent unknown numbers.