Which of the following is the independent variable in the equation below? F(t) = 4t + 9
A. f
B. 9
C. t
D. 4
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).
Therefore, the Correct Answer is C.
More Questions on TEAS 7 Math
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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.
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Q #2: Which of the following is the best estimate of the number of centimeters (cm) in 1 yard? (Note: 1 yard=3 feet; 1 foot =12 inches; 1 inch =2.54 cm)
A. 72 cm
B. 180 cm
C. 36 cm
D. 90 cm
Answer Explanation
We convert the given value in yard to the cm using the following set up.
The value 91.44 cm is close to 90 cm. Therefore, 1 yard is approximately 90 cm.
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Q #3: Which of the following is the mean of the test scores listed below? 100, 78, 47, 84, 93, 78
A. 80
B. 78
C. 96
D. 87
Answer Explanation
The mean of a data set is the total scores divided by the number of tests.
Total test scores =100+78+47+84+93+78=480
Number of tests =6
Mean test score =480/6=80
The mean test score is 80.
