HESI A2 Quizlet Math

Correct Answer: D

Rationale: To calculate the percentage decrease, we use the formula: (Original Price - New Price) / Original Price * 100%. In this case, it would be (200 - 150) / 200 * 100% = 50 / 200 * 100% = 25%. Therefore, the correct answer is D (25%). Option A (5%), B (10%), and C (20%) are incorrect as they do not accurately represent the 25% decrease in price.

Correct Answer: C

Rationale: To determine the volume needed, divide the ordered dose by the concentration. 60 mg / 80 mg/mL = 0.75 mL. Choice C is correct as it correctly calculates the volume required. Choice A is incorrect as it is too low. Choice B is incorrect as it's also too low. Choice D is incorrect as it is too high.

Correct Answer: A

Rationale: The correct answer is A: 32,000 ounces in a ton. There are 16 ounces in a pound, and 2,000 pounds in a ton. Therefore, to find the number of ounces in a ton, you multiply 16 (ounces per pound) by 2,000 (pounds in a ton), resulting in 32,000 ounces. Choice B (30,000 ounces) is incorrect because it does not account for the correct conversion factor between pounds and ounces in a ton. Choice C (35,000 ounces) and Choice D (40,000 ounces) are also incorrect as they similarly do not follow the correct conversion logic.

Correct Answer: A

Rationale: To find the ratio of men to women, divide the number of men by the number of women. So, 12 men / 16 women = 3/4. Therefore, the correct ratio is 3:4 (Choice A). Choice B is incorrect as it does not simplify to 3:4. Choice C is incorrect as it uses the total number of people instead of men and women. Choice D is incorrect because it simplifies to 1:2, not 3:4.

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.