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((frac{x}{y}) + rw = z) Solve for x in the equation above.

A. x=y(z-rw)

B. x=rw(y-z)

C. x=w(z+ry)

D. x=rwy-z

Answer Explanation:

The question requires us we make x the subject of the formula.

First, we subtract rw to both sides of the equation

Multiply both sides by y

Thus, the formula for finding the value of x is y(z-rw).

Therefore, the Correct Answer is A.

Q #1: Which of the following is the total number of whole boxes that measure 0.4 ft * 0.4 ft * 0.4 ft that can be stored in a room that measures 8 ft * 8 ft * 8 ft, if the size of the boxes cannot be altered?

A. 4000

B. 800

C. 400

D. 8,000

Answer Explanation
Q #2: The data below represents students’ test scores. Which of the following is the median of the set data? 80, 76, 92, 96, 44, 86, 56, 93, 69

A. 86

B. 69

C. 44

D. 80

Answer Explanation

Explanation: the median of a data set is the element that is found on the middle position.

To find median, organize the given data from the smallest to largest.

44, 56, 69, 76, 80, 86, 92, 93, 96

Now, the number of elements in the date set is 9, which is an odd number. The median falls in the position

(N+1)/2=(9+1)/2=10/2=5.

The number that falls in the 5th position is 80. Thus, 80 is the median of the data.
Q #3: A motor company’s stock price was $33.20 on Tuesday. On Wednesday, the price went up $2.45. On Thursday, the price decreased from Wednesday’s price by $1.50. On Friday, the price went up $1.62 from Thursday’s price. Which of the following was the final price on Friday?

A. $35.65

B. $34.15

C. $35.77

D. $34.82

Answer Explanation

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