Identify Independent and Dependent Variables Math

Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings is based on the number of students in her class.

Which of the variables is independent?

• number of students

• number of treats

Carey and Justin are raising money to purchase books for the library. The more money they raise, the more books they will be able to purchase for the library. Which of the variables is dependent?

• amount of money raised

• number of books purchased after raising the money

In order to earn extra spending money, Delaney babysits children after school. The greater the number of hours she babysits, the more money she earns.

Which of the variables is dependent?

• number of hours worked

• money earned

A food service worker earns $12 per hour. If the wages earned depends on the number of hours worked, identify the dependent variable.

• wages earned

• number of hours

Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.

What is the dependent variable?

• number of students

• number of treats

Carey and Justin are raising money to purchase books for the library. The more money they raise, the more books they will be able to purchase for the library.

What is the independent variable?

• amount of money raised

• number of books purchases after raising the money

In order to earn extra spending money, Delaney babysits children after school. The greater the number of hours she babysits, the more money she earns.

What is the independent variable?

• number of hours worked

• amount of money earned

A food service worker earns $12 per hour. If the wages earned depends on the number of hours worked, identify the independent variable.

• wages earned

• number of hours

In the United States House of Representatives, the number of representatives from a state depends on the population.

Which of the variables is independent?

• number of U.S. Representatives

• population

Name the DEPENDENT variable from the table below.

• minutes

• bubbles