HESI A2 Math

Correct Answer: A

Rationale: To convert grams to pounds, divide the weight in grams by 453.592 (1 pound is approximately equal to 453.592 grams). Therefore, to convert 1,500 grams to pounds, you would do 1500 / 453.592 = 3.30693393, which rounds down to 3.3 pounds (Answer A). The other choices are incorrect as they do not provide the accurate conversion from grams to pounds. Answer A is the correct choice as it is the result of the precise calculation.

Correct Answer: A

Rationale: To find Andy's daily mileage, we first calculate Jake's daily mileage: 24.5 miles / 7 days = 3.5 miles/day. Since Andy runs five times as much, he runs 3.5 * 5 = 17.5 miles/day. Therefore, the correct answer is A. Choice B (17.7) is incorrect because it is not the result of the calculation in this scenario. Choice C (16.5) is incorrect as it does not account for Andy running five times as much as Jake. Choice D (18.2) is incorrect because it does not align with the correct calculation based on the information provided.

Correct Answer: B

Rationale: The correct answer is B: Yes, it is within the normal range. A potassium level of 4.5 mmol/L falls within the normal range of 3.5 to 5.3 mmol/L. Therefore, it is not too low (Option A) or too high (Option C). Additional information is not required to determine that 4.5 mmol/L is within the normal range, making Option D incorrect.

Correct Answer: D

Rationale: To convert 5 3/4 to a decimal, first convert the mixed number to an improper fraction: 5 * 4 + 3 / 4 = 23/4. Next, divide the numerator by the denominator: 23 ÷ 4 = 5.75. Since we are rounding to the nearest tenth, the answer is 5.8. Choice D (5.8) is correct because it correctly converts 5 3/4 to a decimal and rounds it to the nearest tenth. Choices A, B, and C are incorrect as they do not accurately represent the decimal equivalent of 5 3/4 when rounded to the nearest tenth.

Correct Answer: B

Rationale: To find how many vacuum cleaners Randy sells per month, we first calculate the total annual sales for Janice: 690 vacuum cleaners per year. Since Randy sells 8 times as many, he sells 690 * 8 = 5,520 vacuum cleaners per year. To find monthly sales for Randy, we divide this by 12 (months in a year): 5,520 / 12 = 460 vacuum cleaners per month. Therefore, the correct answer is B: 5,520. Choice A (4,600) is incorrect because it does not account for Randy selling 8 times as many as Janice. Choice C (6,400) and choice D (8,320) are incorrect as they are not the result of the correct calculation based on the information provided in the question.