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To determine the cost of a pizza, the pizza parlor considers the diameter of the pizza, the number of toppings, and the amount of cheese. Which of the following is the dependent variable?

A. Amount of pizza

B. Dimeter of the pizza

C. Cost of the pizza

D. Number of toppings

Answer Explanation:

We are asked to find the dependent variable from the given scenario. A dependent variable is one which varies with another variable. In this case, the cost of the pizza will change with the change in diameter of the pizza, number of toppings, and amount of cheese. In other words, the cost of the pizza depends on the three variables.

Therefore, cost is the dependent variable while the diameter of the pizza, number of toppings and amount of cheese are independent variables.

Therefore, the Correct Answer is C.

More Questions on TEAS 7 Math

  • Q #1: Kwame’s uncle is seventeen less than three times Kwame’s age. Which of the equations represents Kwame’s uncle’s age (u) as it relates to Kwame’s age (k)?

    A. u=17-3k

    B. k=3u-17

    C. k=17-3u

    D. u=3k-17

    Answer Explanation

    We are asked to find the Kwame’s uncle’s age in terms of Kwame’s age.

    First, we need to find the age of Kwame, which is k. Then, we know that Kwame’s uncle’s age is three times that of Kwame less 17. Then,

    Kwame’s uncle’s age, u = 3k-17.

    Thus, the relation that relates Kwame’s uncle’s age to that of Kwame is u=3k-17.

  • Q #2: Soft Drinks Orange: Two 24-packs for $18; one 24-pack for $10 Root Beer: One 24-pack for $12 Cream Soda: One 12-pack for $5 A consumer needs to purchase at least 50 soft drinks for a picnic. Which of the following combinations is the most cost-effective?

    A. 2 packs of Orange and 1 pack of Cream Soda

    B. 3 packs of Orange

    C. 2 packs of Root Beer and 1 pack of Cream Soda

    D. 5 packs of cream Soda

    Answer Explanation

    To find the cost-effective option, we need to find how much the consumer will spend for the given options:

    2 packs of Orange and 1 pack of Cream Soda will cost $18+$5= $23

    3 Packs of Orange will cost $18+$10=$28

    2 packs of Root Beer and 1 pack of Cream Soda will cost 2($12)+$5=$29

    5 packs of cream Soda will cost 5($5)=$25

    From the above evaluation, the consumer will spend $23 for a cost effective package of soft drinks. Thus, 2 packs of Orange and 1 pack of Cream Soda will be cheaper to purchase compared to other options.

  • Q #3: Which of the following is the independent variable in the equation below? F(t) = 4t + 9

    A. f

    B. 9

    C. t

    D. 4

    Answer Explanation

    An independent variable is a variable that is manipulated or changed in the experiment. From the given equation, t is an independent variable, which when changed changes the values of the f(t).