HESI A2 Math Practice Exam

Correct Answer: B

Rationale: The correct answer is B: $19.60. To calculate profit, we subtract the distribution cost from the total revenue. If the distribution cost is $10, and profit is the remainder, then profit = total revenue - distribution cost. Let's denote total revenue as TR. Therefore, profit = TR - $10. Since the distribution cost is $10, the profit will be TR - $10. To find TR, we add the distribution cost to the profit: TR = profit + $10. If we substitute $10 for the distribution cost and $19.60 for profit, we get TR = $19.60 + $10 = $29.60. This means that the correct answer for the profit will be $19.60. Summary: A: $10.40 - Incorrect. This choice is lower than the distribution cost, so it cannot be the profit. C: $14.90 - Incorrect. This choice is also lower than the distribution cost, ruling

Correct Answer: B

Rationale: To find 70% of 65, you multiply 65 by 0.70 (which is the decimal form of 70%). 65 * 0.70 = 45.5 Therefore, the correct answer is B: 45.5. Choice A (40.5), C (50), and D (55) are incorrect as they do not result from the correct calculation of 70% of 65.

Correct Answer: A

Rationale: To find the number of black marbles, we need to subtract the number of white marbles from the total. 34% of 6,657 is white marbles, which is approximately 2,261. So, the number of black marbles is 6,657 - 2,261 = 4,396. The closest option is A: 4,394, which is the correct answer. Choices B, C, and D are incorrect because they do not accurately represent the calculated number of black marbles.

Correct Answer: A

Rationale: To find the ratio of women to the total number of students, we need to add up the number of women and divide it by the total number of students. Let's assume there are 4 women and 7 men in the class. The total number of students would be 4 (women) + 7 (men) = 11. So, the ratio of women to the total number of students is 4:11. Simplifying this ratio gives us 4:7, which is choice A. Therefore, choice A is correct. Choices B, C, and D are incorrect because they do not represent the correct ratio of women to the total number of students in the class based on the given information.

Correct Answer: A

Rationale: Certainly! To compare, we need to convert both fractions to a common denominator. LCM of 8 and 100 (8*25) is 100. Sally ate (5/8)*100 = 62.5%. John ate 75%. Clearly, 75% is more than 62.5%. So, John ate more. Other choices are incorrect as they do not consider the actual percentages consumed by Sally and John.