HESI A2 Math

Correct Answer: B

Rationale: The correct answer is B (106.4). To calculate the rate of calories burned per mile, we divide the total calories burned (2276) by the total distance covered (21.4 miles). 2276 calories ÷ 21.4 miles = 106.4 calories/mile. Choice A is incorrect as it is slightly lower than the correct calculation. Choice C is also incorrect as it is more precise than necessary and introduces unnecessary decimal points. Choice D is incorrect as it is too precise and unnecessary for this calculation.

Correct Answer: B

Rationale: The correct answer is B (106.4). To calculate the rate of calories burned per mile, we divide the total calories burned (2276) by the total distance covered (21.4 miles). 2276 calories ÷ 21.4 miles = 106.4 calories/mile. Choice A is incorrect as it is slightly lower than the correct calculation. Choice C is also incorrect as it is more precise than necessary and introduces unnecessary decimal points. Choice D is incorrect as it is too precise and unnecessary for this calculation.

Correct Answer: D

Rationale: First, calculate Claire's weekly calorie intake: 2,500 calories/day * 7 days = 17,500 calories/week. Since Alice consumes twice as many calories as Claire, she consumes 2 * 17,500 = 35,000 calories per week. Therefore, choice D is correct. Choices A, B, and C are incorrect because they do not account for Alice consuming twice as many calories as Claire.

Correct Answer: A

Rationale: To find the new width, we need to use the concept of proportionality. Since the height is increasing from 15 inches to 4 feet (48 inches), we set up the proportion: 15/width = 48/new width. Solving for the new width, we get width = (15 * new width) / 48. Given the new height is 4 feet, we substitute 48 for the new height: width = (15 * new width) / 48 = (15 * new width) / 48 = 4.2 feet. Therefore, the correct answer is A: 2.1 feet. Choices B, C, and D are incorrect as they do not align with the proportionality calculation.

Correct Answer: A

Rationale: To determine the day with the highest number of admissions in a bar graph, you need to find the tallest bar. The height of each bar represents the number of admissions for a specific day. By identifying the tallest bar, you can easily pinpoint the day with the highest number of admissions. Comparing bar heights (choice B) may be time-consuming and unnecessary. Calculating the average number of admissions per day (choice C) provides an overall view but doesn't directly identify the day with the highest admissions. Subtracting the lowest from the highest number of admissions (choice D) is not needed as the focus is on identifying the highest day, not the range.