# How do you define a variable and write an expression for each phrase: the difference between a number and one-third of the number?

We are working with an unknown number and we need to call it something.

The word DIFFERENCE is an indication that we must subtract, to find out by how much one number is bigger than another number.

DIFFERENCE is always used with the word AND, telling us which two numbers we need to subtract.

By signing up, you agree to our Terms of Service and Privacy Policy

To define a variable for this phrase, let's denote the number as ( x ).

The difference between a number and one-third of the number can be expressed as:

[ x - \frac{x}{3} ]

By signing up, you agree to our Terms of Service and Privacy Policy

Let the variable ( x ) represent the number.

The expression for "the difference between a number and one-third of the number" is:

[ x - \frac{1}{3}x ]

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7