HESI A2 Math

Correct Answer: A

Rationale: To calculate the distance traveled, multiply the speed (60 mph) by the time (2.5 hours): 60 mph * 2.5 hours = 150 miles. Therefore, the correct answer is B. Choice A (120 miles) is incorrect as it is lower than the correct calculation. Choices C (180 miles) and D (170 miles) are incorrect as they are higher than the actual distance traveled.

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 perimeter of a square, you add up all the sides. Since a square has four equal sides, the perimeter is the side length multiplied by 4. In this case, the side length is 5 meters, so the perimeter would be 5 * 4 = 20 meters. Therefore, choice B (20 meters) is correct. Choice A (15 meters) is incorrect because it is the result of adding the side length once instead of multiplying by 4. Choice C (25 meters) and choice D (30 meters) are incorrect as they are the results of adding or multiplying incorrectly.

Correct Answer: A

Rationale: To solve for y in the equation 4y + 21/y when y = 3: 1. Substitute y = 3 into the equation: 4(3) + 21/3 = 12 + 7 = 19. Therefore, the correct answer is A (19). Explanation for other choices: B: 7.7 - Incorrect. Not the result of substituting y = 3. C: 23/3 - Incorrect. Not the simplified result of the equation. D: 11 - Incorrect. Not the result of substituting y = 3.

Correct Answer: A

Rationale: To calculate the annual dividend Mr. Rogers receives for his 400 shares, we need to find the dividend per share first. For Mr. Parker, the dividend per share is $180/150 = $1.20. So, for Mr. Rogers, with 400 shares, his annual dividend would be 400 x $1.20 = $480. Therefore, the correct answer is A: $480. Summary: - B: $500 is incorrect because it is not the correct calculation based on the given information. - C: $450 is incorrect as it is not the correct calculation based on the given information. - D: $72,000 is incorrect as it is an excessively high amount and not a reasonable dividend for owning 400 shares.