HESI A2 Math Practice Test 2024

Correct Answer: C

Rationale: The correct answer is C because the range of 5 degrees Celsius indicates the difference between the highest and lowest temperatures in the set is 5 degrees. This is the definition of range in statistics. A is incorrect because the range does not provide information about the average temperature. B is incorrect because the range only tells us the spread between the highest and lowest temperatures, not that all temperatures are within 5 degrees of each other. D is incorrect because the range does not indicate how many temperatures are in the set, just the difference between the highest and lowest temperatures.

Correct Answer: D

Rationale: To find the percentage equivalent of a decimal number, you multiply the decimal by 100. So, for 0.45, you get 0.45 x 100 = 45%. Therefore, the correct answer is D. Choice A (4.5%) is 10 times greater than 0.45, Choice B (0.045%) is 100 times smaller, and Choice C (0.45%) is the same as the decimal, not the percentage equivalent.

Correct Answer: D

Rationale: To produce 6 eggs, 2 chickens are required. Therefore, to produce 24 eggs, we need to scale up the number of chickens proportionally. We can set up a ratio: 2 chickens produce 6 eggs, so 1 chicken produces 3 eggs. To produce 24 eggs, we need 8 chickens (24 eggs / 3 eggs per chicken). Therefore, the correct answer is D. Choice A (12 chickens) is incorrect because it does not account for the proportional relationship between the number of chickens and the number of eggs produced. Choice B (4 chickens) is incorrect because it does not consider the required number of chickens to produce the specified number of eggs. Choice C (3 chickens) is incorrect because it does not align with the proportional relationship established in the question.

Correct Answer: A

Rationale: To convert a decimal to a percent, you multiply by 100. In this case, 0.09 * 100 = 9%. Therefore, the correct answer is A: 9%. Choice B (90%) is incorrect as it would be the result of multiplying by 1000, not 100. Choice C (1%) is incorrect as it would be the result of moving the decimal point two places to the right without multiplying by 100. Choice D (0%) is incorrect as the number is not zero, it's 0.09.

Correct Answer: A

Rationale: The correct answer is A (250 grams). To calculate the full RDI, we use the formula: RDI = Consumed Amount / Percentage Consumed. Given, Consumed Amount = 75 grams and Percentage Consumed = 30%. Therefore, RDI = 75 / 0.30 = 250 grams. The other choices are incorrect because they do not match the calculated value based on the given information. Choice B, C, and D are all higher than the correct calculation of 250 grams, so they do not align with the required amount based on the 30% consumption.