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# What is an unknown or changeable quantity called

What is an unknown or changeable quantity called

### 10 Answers

1. Variable

2. Wat good

3. Coefficient

4. varible

5. Uhhhj

6. Factor

7. variable

8. Term

9. 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).