HESI A2 Practice Test Math

Correct Answer: D

Rationale: To find which percentage equals 1.25, we convert 1.25 to a percentage by multiplying it by 100. 1.25 * 100 = 125%. Therefore, the correct choice is D. Choice A (1250%) is incorrect as it represents 12.5, not 1.25. Choices B (25%) and C (50%) are also incorrect as they are significantly lower than 1.25.

Correct Answer: A

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: A

Rationale: To subtract mixed numbers, convert them to improper fractions. 3 4/5 = 19/5 and 7 7/10 = 77/10. Subtracting gives 19/5 - 77/10 = 38/10 - 77/10 = -39/10. Convert back to a mixed number: -39/10 = -3 9/10 (choice A). Other choices are incorrect as they do not match the correct result.

Correct Answer: A

Rationale: To convert ounces to milliliters, we use the conversion factor: 1 oz = 29.5735 mL. Since the bottle contains 1/2 oz, we multiply 1/2 by 29.5735 to get 14.78675 mL. Rounding up, the closest option is 15 mL (choice A). Choices B, C, and D are incorrect as they do not match the calculated conversion from ounces to milliliters.

Correct Answer: A

Rationale: The correct answer is A: 33%. To find the percentage of male students, subtract the number of female students (32) from the total number of students (48) to get the number of male students (16). Then, divide the number of male students (16) by the total number of students (48) and multiply by 100 to get the percentage of male students, which is 33%. Choice B (66%) is incorrect because it represents the percentage of female students, not male students. Choice C (25%) and Choice D (45%) are also incorrect as they do not accurately reflect the percentage of male students in the class.