Independent and Dependent Variables Math

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.
t = the number of treats
s = the number of students
Which of the variables is independent?

• s = the number of students

• t = the number of treats

Identify the independent variable

The number of hours, h, worked and the amount of money, m, earned

• hours, h

• money, m

Identify the independent variable

The pages p, in a book and the weight, w, of the book

• p

• w

Identify the independent variable

The number of hamburgers, h, sold and the dollar amount of sales, s taken in

• h

• s

The graph shows the distance traveled by Ms. Luce's family on a road trip. They will travel 25 miles each hour. Which statement is true about the situation?

• the independent variable is distance

• the independent variable is d=25 t

• the dependent variable is time

• the dependent variable is distance

The dependent variable is:

• m = money

• p = number of pizzas delivered

The independent variable is:

• s = stickers earned

• p = papers completed

Ms. Shi is making a scrapbook. As she adds more photos, the scrapbook grows thicker.

p = the number of photos added
t = the thickness of the scrapbook

• t is the independent variable and p is the dependent variable

• p is the independent variable and t is the dependent variable

Ty earns $12 per hour. Which of the following equations best represents how much money, m, he earns on a shift of h hours?

• m = 12h

• m = 12 + h

• h = 12m

• h = 12 + m