(x/y)-z=rw Solve for x in the equation above.

A. X=y(z+rw)

B. X=rw(y-z)

C. X=rwy+z

D. X=rwy-z

Answer Explanation:

Given the equation (x/y)-z=rw, we make x the subject of the formula as follows:

(x/y)-z=rw

Add z to both sides of the equation

(x/y)-z+z=rw+z

(x/y)=rw+z

Multiply both sides by y

(x/y)*y=y(rw+z)

X=y(rw+z)

Rearranging the equation results in:

X = y(z+rw)

Therefore, the Correct Answer is A.

Q #1: In a study of the average weight of babies at different time intervals after birth, the babies’ measured weight is which of the following variables?

A. Independent

B. Control

C. Dependent

D. Constant

Answer Explanation

In this case, we are measuring average weight of the babies with time. The weight of the babies will vary with time, meaning when we vary time, the average weight of the babies will be different. Here, time is independent while average weight is dependent variable.
Q #2: What is the least common denominator for the fractions below? (Round the answer to the nearest integer) 1/2, 2/3, 4/5

A. 30

B. 25

C. 7

D. 19

Answer Explanation

We determine least common denominator (LCD) using prime factorization of denominators as follows

2=1*2

3=1*3

5=1*5

Thus, LCD of 2, 3, 5 = 2*3*5=30
Q #3: 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

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(x/y)-z=rw Solve for x in the equation above.

More Questions on TEAS 7 Math

Q #1: In a study of the average weight of babies at different time intervals after birth, the babies’ measured weight is which of the following variables?

Answer Explanation

Q #2: What is the least common denominator for the fractions below? (Round the answer to the nearest integer) 1/2, 2/3, 4/5

Answer Explanation

Q #3: Elevation above sea level and temperature are negatively-correlated variables. Which of the following statement describes the relationship between the variables?

Answer Explanation

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(x/y)-z=rw Solve for x in the equation above.

More Questions on TEAS 7 Math

Q #1: In a study of the average weight of babies at different time intervals after birth, the babies&rsquo; measured weight is which of the following variables?

Answer Explanation

Q #2: What is the least common denominator for the fractions below? (Round the answer to the nearest integer) 1/2, 2/3, 4/5

Answer Explanation

Q #3: Elevation above sea level and temperature are negatively-correlated variables. Which of the following statement describes the relationship between the variables?

Answer Explanation

Free Access on TEAS 7 Exams and Study Notes

TEAS 7 Exams (Q&A)

TEAS 7 Study Notes

TEAS 7 Topical Tests

TEAS 7 Study Guides

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Refer a Friend

Q #1: In a study of the average weight of babies at different time intervals after birth, the babies’ measured weight is which of the following variables?