A circle has an area of 36\pi in2. Which of the following is the circumference of the circle in terms of pi ( \pi)?
A. 3 \pi in
B. 6 \pi in
C. 12 \pi in
D. 24 \pi in
Therefore, the Correct Answer is C.
More Questions on TEAS 7 Math
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Q #1: 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 #2: Three friends are sharing a pizza. One friend eats three-quarters of the pizza. The other two friends equally divide the rest among themselves. What portion of the pizza did each of the other three friends receive?
A. 1/6
B. 3/4
C. 2/3
D. 1/5
Answer Explanation
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Q #3: 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 #4: 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 #5: Which of the following is the total number of whole boxes that measure 2.4 ft * 2.4 ft * 2.4 ft that can be stored in a room that measures 18 ft * 18 ft * 18 ft, if the size of the boxes cannot be altered?
A. 125
B. 92
C. 422
D. 400
Answer Explanation
The number of boxes is determined by finding the volume of the room divided by the volume of the box.
Number of boxes
The number of boxes that can be stored in the room is about 422.
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Q #6: -1/3, -0.6, -1.5, -7/3. Of the numbers listed above, which number is the greatest?
A. -0.6
B. -7/3
C. -1/3
D. -1.5
Answer Explanation
To find the greatest value, we need to have uniform numbers. That is, all numbers must be in fraction for easy comparison. Therefore, we convert -0.6, and -1.5 into fractions as follows. For purposes of easy computation, we do not simplify the resulting fractions.
-0.6=-6/10
-1.5=-15/10
Now, the resulting fractions are -1/3, -6/10, -15/10, and -7/3. The greatest value is found by finding the LCM of the denominators and multiplying with each fraction. The LCM of 3 and 10 is 30. Then,
-1/3*30=-10
-6/10*30=-18
-15/10*30=-45
-7/3*30=-70
Based on the obtained values, -10 is the greatest value and -70 the least value. Therefore, -1/3 is the greatest of all the four options.
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Q #7: There are 900 students enrolled in four allied health programs at a local community college. The percent students in each program are displayed in the pie chart. Which of the following is the number of students enrolled in the Radiologic Technology program?
A. 162
B. 171
C. 378
D. 189
Answer Explanation
We use the percentages and number of students to find the number of students enrolled in the respiratory care program as in the pie chart. The total percent of the whole piec chart sums to 100%.
If we let x represent the number of students enrolled in the Radiologic Technology program, we can set a proportion equation with number of students on the numerator and percentages on the denominator.
\(\frac{x}{21\%}\ =\ \frac{900}{100\%} \)
Find the value of x by cross-products
\(x\ *\ 100\%\ =\ 900\ students * 21\%\)
Divide both sides of the equation by 100%
\(x= \frac{900\ students\ *\ 21\%}{100\%}\ =\ 189\ students\)
Thus, 189 students out of 900 students will enroll for a respiratory care program.
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Q #8: Ann’s mother is twelve less than 2 times Ann’s age. Which of the equations represents Ann’s mother’s age (p) as it relates to Joe’s age (q)?
A. p=12-2q
B. q=2p-12
C. p=2q-12
D. q=12-2p
Answer Explanation
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Q #9: Which of the following is the best approximation of 15 times the positive square root of 33?
A. 78.5
B. 44.7
C. 156.2
D. 86.2
Answer Explanation
we use the calculator to determine the positive square root of 33, which is then multiplied by 15.
Using the calculator,
Multiplying the square root above with 15 becomes
The approximate value is 86.2.
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Q #10: Joe’s uncle is eight less than four times Joe’s age. Which of the equations represents Joe’s uncle’s age (u) as it relates to Joe’s age (k)?
A. u=8-4k
B. k=4u-8
C. k=8-4u
D. u=4k-8
Answer Explanation
We are asked to form an equation to find Joe’s uncle’s age to the age of Joe.
First, we find Joe’s age which is k. We know that Joe’s uncle’s age is four times that of Joe less 8. Then,
Joe’s uncle’s age, u = 4k-8.
Thus, the age of Joe’s uncle is u=4k-8.
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