TEAS 7 Math Practice Test

Correct Answer: C

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: C

Rationale: To solve the equation 3(x + 4) = 18 for x, first distribute the 3: 3x + 12 = 18. Then, isolate x by subtracting 12 from both sides: 3x = 6. Finally, divide by 3 to find x = 2. Therefore, the correct answer is x = 6. Choice A is incorrect because x = 2, not 6. Choice B is incorrect because x = 4, not 6. Choice D is incorrect because x = 8, not 6.

Correct Answer: C

Rationale: The correct answer is C because in a negatively skewed distribution, the tail of the histogram extends to the left, indicating that there are more data points on the right side. In Group B, the histogram is negatively skewed, meaning it has a higher mean than Group A. Option A is incorrect because Group A is positively skewed, not negatively skewed. Option B is incorrect because Group A has a lower mean than Group B. Option D is incorrect because Group B has a higher mean than Group A due to its negatively skewed distribution.

Correct Answer: C

Rationale: To find the fraction of the class that wanted to work with the elderly, we add the percentage of students who wanted to work with the elderly, which is 60%. This can be represented as 60/100, which simplifies to 3/5. Choice A (1/4) is incorrect because it represents the fraction of students who wanted to work with infants, which is 25%. Choice B (1/10) is incorrect as it represents the fraction of students who wanted to assist general practitioners, which is 10%. Choice D (1/20) is incorrect as it does not correspond to any of the given percentages in the question.

Correct Answer: B

Rationale: Correct Answer: B Rationale: In January, Dr. Lewis worked 20 shifts. In February, she worked 3 times as many shifts as in January (3 * 20 = 60 shifts). In March, she worked half the number of shifts she worked in February (1/2 * 60 = 30 shifts). Therefore, the equation should be shifts = (20)(3)(1/2) = 30, which accurately represents the number of shifts Dr. Lewis worked in March. Summary of other choices: A: Incorrect because it adds shifts for each month without considering the relationships between them. C: Incorrect because it multiplies January and February shifts but does not account for March being half of February. D: Incorrect because it incorrectly multiplies 3 and 1/2 without considering the total number of shifts in February.