TEAS Practice Math Test

Correct Answer: A

Rationale: To determine the correct order, we convert all values to decimals or percentages. First, convert -3/4 to -0.75, then 3% to 0.03. Now, the order becomes -2, -0.75, -0.45, 0.03, 0.36. The correct order is A: -2, -3/4, -0.45, 3%, 0.36. This is correct because -2 is the least, followed by -0.75, then -0.45, 0.03, and finally 0.36. Other choices are incorrect because they do not follow the correct numerical order.

Correct Answer: C

Rationale: To find the number of hairs used for the drug test, we need to calculate 1/7 of 100 hairs. 1/7 * 100 = 100/7 ≈ 14.29 hairs were used for the drug test. Therefore, the correct answer is C (14.29). Option A (14) is incorrect as it does not accurately represent 1/7 of 100. Option B (14.2) is also incorrect as it is not the exact result of the calculation. Option D (14.3) is incorrect as it rounds up the result, which is not necessary based on the question's requirement to round to the nearest hundredth.

Correct Answer: B

Rationale: To find the average weight of each item, we first subtract Jerry's weight from the elevator's weight limit: 800 - 200 = 600 pounds. Then, we divide this by the number of items (4): 600 / 4 = 150 pounds. This means each item should weigh 150 pounds on average to not exceed the weight limit. Choice B (150 pounds) is correct. Choice A (128 pounds) is too light, which would allow the elevator's weight limit to be exceeded. Choice C (175 pounds) and choice D (180 pounds) are too heavy, which would also exceed the weight limit.

Correct Answer: D

Rationale: To find the total bonus amount, we need to work backwards. Since Chan has $600 remaining after paying taxes, donating, and paying off debt, this $600 represents 15% of his original bonus (100% - 30% - 30% - 25% = 15%). Therefore, $600 is equivalent to 15% of the bonus. To find the total bonus amount, we divide $600 by 15% (or 0.15), which equals $4,000. Thus, the correct answer is D: $4,000. Choice A ($3,000) is incorrect because it does not account for the remaining $600. Choice B ($3,200) and choice C ($3,600) are also incorrect as they do not reflect the correct percentage left after all deductions, which is 15%.

Correct Answer: D

Rationale: To solve for x, we add 7 to both sides of the equation: 2x - 7 + 7 = 3 + 7. This simplifies to 2x = 10. Then, we divide both sides by 2 to solve for x: 2x/2 = 10/2, which gives x = 5. Therefore, the correct answer is D. Choice A is incorrect because 4 does not satisfy the equation. Choice B is incorrect as x = 3 does not make the equation true. Choice C is incorrect as x = -2 does not satisfy the equation either.