HESI A2 Quizlet Math

Correct Answer: B

Rationale: To convert yards to feet, we know that 1 yard is equal to 3 feet. Therefore, to find out how many feet are in 3 yards, we multiply 3 (yards) by 3 (feet per yard), which equals 9 feet. So, the correct answer is B: 9 feet. A: 18 feet - Incorrect, as it doubles the correct answer. C: 12 feet - Incorrect, as it is derived from multiplying 3 yards by 4 feet instead of 3 feet. D: 27 feet - Incorrect, as it multiplies 3 yards by 9 feet, which is incorrect conversion.

Correct Answer: D

Rationale: To find the number of trees in each row: 1. Take the square root of the total number of trees: √65,536 = 256. 2. Since the number of rows equals the number of trees in each row, the correct answer is 256 (D). Choice A, 1684, is incorrect as it is not a factor of 65,536. Choice B, 1268, and Choice C, 668, are also incorrect as they do not satisfy the condition of having an equal number of rows and trees in each row.

Correct Answer: A

Rationale: To calculate the number of diapers needed in a year, we multiply the number of times the baby is changed per day (6) by the number of days in a year (365). So, 6 diapers/day x 365 days/year = 2190 diapers (Choice A). This is the correct answer as it accounts for daily changes throughout the year. Choices B, C, and D are incorrect because they do not accurately calculate the total number of diapers needed based on the given information.

Correct Answer: C

Rationale: To determine the pounds of cake that can be made with 40 eggs, we use the ratio of 3 eggs per pound of cake. First, divide 40 eggs by 3 to get 13.33 pounds. Since we can't make a fraction of a pound of cake, the closest whole number is 13 pounds. Therefore, the correct answer is C (13 pounds). Choice A (12 pounds) is incorrect because 40 eggs divided by 3 is not equal to 12. Choice B (14 pounds) is incorrect because the calculation does not result in 14 pounds of cake. Choice D (15 pounds) is incorrect because the correct calculation does not yield 15 pounds.

Correct Answer: C

Rationale: To convert quarts to gallons, we know that 1 gallon equals 4 quarts. Therefore, to find out how many gallons are in 16 quarts, we divide 16 by 4 which equals 4 gallons. So, the correct answer is C. Explanation of other choices: A: 1 gallon is not the correct answer because 16 quarts is more than 1 gallon. B: 8 gallons is incorrect as it does not align with the conversion factor of 1 gallon per 4 quarts. D: 4.5 gallons is incorrect as it is not the result of dividing 16 quarts by the conversion factor of 4 quarts per gallon.