Which of the following is the mean of the test scores listed below? 98, 79, 57, 85, 92, 87
A. 57
B. 92
C. 83
D. 87
Therefore, the Correct Answer is C.
More Questions on TEAS 7 Math
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Q #1: 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.
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Q #2: Simplify the expression above. Which of the following is correct?
A. 33
B. 44
C. 25
D. 12
Answer Explanation
Let's simplify the expression step by step:
Step 1: Inside the square brackets, perform the operation within parentheses first:
([4(3+6?5)]=[4(3+30)] )
Step 2: Continue simplifying inside the square brackets:
([4(3+30)]=[4ast33])
Step 3: Calculate the value inside the square brackets:
([4ast33]=132)
Step 4: Now, deal with the denominator:
((20÷5)=4)
Step 5: Finally, divide the result from step 3 by the result from step 4:
(132/4=33)
So, the simplified expression is 33.
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Q #3: Which of the following is the best approximation of 4 times the positive cube root of 23?
A. 12.7
B. 11.4
C. 16.2
D. 96.7
Answer Explanation
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Q #4: 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
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Q #5: A person weighed themselves at 120 lb. Three months later they weighed themselves at 160 lb. Which of the following is the percent of weight the person gained over 3 months? (Round to the nearest percent.)
A. 66%
B. 33%
C. 35%
D. 30%
Answer Explanation
We need to find the percent change in weight of a person. To find the percent change, follow the following steps:
- Find absolute change in weight
- Find relative change
- Find the percent change from relative change.
Absolute change is the difference between the final value and initial value. Our initial value is 120 lb and final value is 160 lb. Then,
Relative change is given by
Percent change is determined by
To the nearest whole number, the percent change is 33%.
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Q #6: Soft Drinks: Orange Two 24-packs for $20, One 24-pack for $15 Root Beer: One 24-pack for $18 Cream Soda: One 12-pack for $10 A consumer needs to purchase at least 60 soft drinks for a picnic. Which of the following combinations is the most cost-effective?
A. 5 packs of cream Soda
B. 3 packs of Orange
C. 2 packs of Root Beer and 1 pack of Cream Soda
D. 2 packs of Orange and 1 pack of Cream Soda
Answer Explanation
To find the cheapest option, we find the amount the consume will spend for each option given:
2 packs of Orange and 1 pack of Cream Soda will cost $20 + $10= $30 (Choice D)
3 Packs of Orange will cost $20+$15 = $35 (Choice B)
2 packs of Root Beer and 1 pack of Cream Soda will cost 2($18) + $10 = $46 (Choice C)
5 packs of cream Soda will cost 5($10)=$50 (Choice A)
Hence Choice D - 2 packs of Orange and 1 pack of Cream Soda is the correct answer. -
Q #7: The length of a rectangular room is 9 feet greater than its width. Which of the following equations represents the area (A) of the room?
A. A=9x
B. A=2x+2(x+9)
C. A=x(x+9)
D. A=x+(x+9)
Answer Explanation
we are asked to find the area of the room from the given information.
The first step is to find equation relating the length of the room to its width. If we let the width of the room to be x. Then,
Width of the rectangle= x
Length of rectangle = (x+9)
Area of the rectangle, A= Length*width = (x+9)*x
A=x(x+9)
Therefore, the area of the rectangular room is x(x+9).
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Q #8: As the number of working hours increases, the company experiences an increase profit, production, and a decrease in overhead costs. Which of the following is the independent variable?
A. Profit
B. Working hours
C. Production
D. Overhead costs
Answer Explanation
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Q #9: Which of the following is the decimal equivalent of 3/8?
A. 375
B. 3.75
C. 37.5
D. 0.375
Answer Explanation
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Q #10: To determine the cost of a meal, the restaurant considers the size of the meal, the number of toppings, and the amount of main ingredient. Which of the following is the dependent variable?
A. Amount of meal
B. Main ingredient
C. Cost of the meal
D. Number of toppings
Answer Explanation
We are asked to find the dependent variable from the given scenario. A dependent variable is one that changes to the change in an independent variable. In our problem, the cost of the meal will vary depending on the size of the meal, number of toppings, and amount of main ingredient. Therefore, cost is the dependent variable.
