If (D) is the distance traveled and (R) is the rate of travel, which of the following represents the relationship between D and R for the equation D=2R?

A. D is twice as much as R

B. R is twice as much as D

C. R is two than D

D. D is town more than R

Answer Explanation:

Given the equation D=2R means that the get the value of D, multiply the value of R by 2. That is D is two times the value of R.

Therefore, the Correct Answer is A.

Q #1: Elevation above sea level and temperature are negatively-correlated variables. Which of the following statement describes the relationship between the variables?

A. As elevation decreases, temperature remains the same

B. As elevation decreases, temperature decreases

C. As elevation increases, temperature decreases

D. As elevation increases, temperature increases

Answer Explanation

In a negatively-correlated variables, a change in one variable result in opposite change in the other variable. In other words, an increase in on variable results in a decrease in the other.

Now let’s analyze the given scenarios:

As elevation decreases, temperature remains the same this is NO-CORRELATION

As elevation decreases, temperature decreases is a POSITIVE CORRELATION

As elevation increases, temperature decreases is a NEGATIVE CORRELATION

As elevation increases, temperature increases is a POSITIVE CORRELATION
Q #2: As the number of credit hours a student takes in a semester increases, the amount of tuition, the amount of access fees, and the number of student loans available also increase. Which of the following is the independent variable?

A. Amount of tuition

B. Number of credit hours

C. Amount of access fees

D. Number of student loans available

Answer Explanation

Independent is a variable that determines the outcome of the other variable. In this case, the credit hours determine how other three variables change. Thus, the number of credit hours is the independent variable.
Q #3: Which of the following is the median of the data set below?? 5, -3, 10, -2, 0

A. 10

B. 0

C. 5

D. 2

Answer Explanation

Organize the date set from the smallest to the largest as:

-3, -2, 0, 5, 10

Median means one that is at the middle, and from the above-given data set, 0 falls at the middle.

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If (D) is the distance traveled and (R) is the rate of travel, which of the following represents the relationship between D and R for the equation D=2R?

More Questions on TEAS 7 Math

Q #1: Elevation above sea level and temperature are negatively-correlated variables. Which of the following statement describes the relationship between the variables?

Answer Explanation

Q #2: As the number of credit hours a student takes in a semester increases, the amount of tuition, the amount of access fees, and the number of student loans available also increase. Which of the following is the independent variable?

Answer Explanation

Q #3: Which of the following is the median of the data set below?? 5, -3, 10, -2, 0

Answer Explanation

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