HESI A2 Math

Correct Answer: B

Rationale: The correct answer is B: 2 tablets. To reach the prescribed 500 mg dosage, two 250 mg tablets should be given. This is because 250 mg + 250 mg = 500 mg, meeting the prescription requirements accurately. Choices A, C, and D are incorrect because they do not add up to the required 500 mg dosage. Option A (3 tablets) would result in 750 mg, option C (4 tablets) would total 1000 mg, and option D (5 tablets) would equal 1250 mg, all exceeding the prescribed amount. Hence, the correct answer is 2 tablets to achieve the precise 500 mg dosage.

Correct Answer: A

Rationale: The correct answer is A (240 kilometers). To calculate the distance traveled, we multiply the speed of the train (80 km/h) by the time it travels (3 hours): 80 km/h x 3 hours = 240 kilometers. Therefore, the train will travel 240 kilometers in 3 hours. Choice B (160 kilometers) is incorrect because it does not accurately calculate the distance traveled by the train in 3 hours. Choice C (240 kilometers) is incorrect because it is identical to the correct answer, but the question does not have duplicate options. Choice D (210 kilometers) is incorrect because it is a different calculation result than the correct answer of 240 kilometers.

Correct Answer: B

Rationale: To solve the expression (x+44)/2x when x=11: 1. Substitute x=11: (11+44)/2*11 2. Simplify: (55)/22 = 2.5 Therefore, the correct answer is B. Other choices are incorrect because they do not correctly simplify the expression given x=11. Choice A simplifies it incorrectly, choice C and D do not simplify it at all.

Correct Answer: B

Rationale: To find the percentage of remaining members who are male after 4 females leave, we first calculate the remaining total members: 34 - 4 = 30. Since 18 members are male, the percentage of males in the remaining team is (18 / 30) * 100% = 60%. Choice B is correct. Choice A (50%) is incorrect because there are more than 50% males in the remaining team. Choice C (70%) is incorrect as it overestimates the percentage of males after 4 females leave. Choice D (55%) is incorrect because the correct percentage is 60%, not 55%.

Correct Answer: A

Rationale: To calculate Farmer Juan's profit, multiply the total number of eggs (14 acres * 17460 eggs/acre) by the profit per egg ($1.65). 14 acres * 17460 eggs/acre * $1.65 = $403,326. This is the correct answer as it calculates the total profit based on the given information. Choices B, C, and D are incorrect as they do not correctly calculate the total profit using the number of acres, yield per acre, and profit per egg provided in the question.