Which of the following expressions represents the sum of three times a number and eight times a different number?

A. 3x+8y

B. 8x+3x

C. 3x-8y

D. 8x-3y

Answer Explanation:

Let two numbers be x and y. Then

Three time a number=3x

Eight times a different number = 8y

Sum of the two is 3x+8y

Therefore, the Correct Answer is A.

Q #1: 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 #2: 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.
Q #3: Which of the following is the correct simplification of the expression below? 12 ÷ 3 * 4 - 1 + 23

A. 6

B. 21

C. 38

D. 23

Answer Explanation

Use the order of operations to solve the given equation. The acronym PEDMAS will help us to solve the given problem.

P- Parenthesis

E-Exponents

D-Divide

M-Multiply

A-Add

S-Subtract

From the given equation start with solving :-

12 ÷3 * 4 - 1 + 23

Next, carry out division 12÷3=4

4*4-1+23

Multiply is 4*4=16

16-1+23

Add or subtract can be conducted in any order. From left to right, we subtract followed by addition

Subtract 16-1=15

15+23

The last step is to add 15+23

15+23=38

Thus, the answer to the given equation is 38.

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Which of the following expressions represents the sum of three times a number and eight times a different number?

More Questions on TEAS 7 Math

Q #1: 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 #2: Which of the following is the median of the data set below?? 5, -3, 10, -2, 0

Answer Explanation

Q #3: Which of the following is the correct simplification of the expression below? 12 ÷ 3 * 4 - 1 + 23

Answer Explanation

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Which of the following expressions represents the sum of three times a number and eight times a different number?

More Questions on TEAS 7 Math

Q #1: 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 #2: Which of the following is the median of the data set below?? 5, -3, 10, -2, 0

Answer Explanation

Q #3: Which of the following is the correct simplification of the expression below? 12 &divide; 3 * 4 - 1 + 23

Answer Explanation

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Q #3: Which of the following is the correct simplification of the expression below? 12 ÷ 3 * 4 - 1 + 23