HESI A2 Math Practice - Nurselytic

Correct Answer: D

Rationale:
To convert ounces to pounds, you divide the number of ounces by 16 since there are 16 ounces in a pound.
Therefore, 176 ounces · 16 = 11 pounds.
Choice A is incorrect because it miscalculates the conversion.

Choices B and C are also incorrect as they do not accurately convert the given ounces to pounds.

Correct Answer: C

Rationale:
To solve the equation 8x = x^2, rearrange it to x^2 - 8x = 0. Factor out an x to get x(x - 8) = 0. Set each factor to zero to find the solutions: x = 0 or x = 8.
Therefore, x = 16 is the correct answer because x = 0 is not in the answer choices, and x = 8 is a distraction meant to confuse. Thus, choice C, 16, is the correct solution to the equation.

Correct Answer: A

Rationale:
To convert 0.025 to a ratio, we can express it as 25:1000 and simplify it by dividing both terms by 25, resulting in 1:40.
Therefore, the correct answer is A.
Choice B (4:1) and C (400:1) do not represent the correct ratio for 0.025.
Choice D (26:40:00) is incorrect as it does not follow the standard ratio format of two numbers separated by a colon.

Correct Answer: D

Rationale:
To find the result of subtracting 8.4 from 3.7, you need to subtract 3.7 from 8.4. Performing this subtraction, 8.4 - 3.7 equals 4.7.
Therefore, the correct answer is 4.7.
Choice A, 4.5, is incorrect as it is not the result of subtracting 8.4 from 3.7.

Choices B and C, 4.8 and 4.6 respectively, are also incorrect as they do not match the correct subtraction result of 4.7.

Correct Answer: B

Rationale:
To find 60% of 150, you multiply 0.6 by 150, which equals 90.
Therefore, the correct answer is 90.
Choice A (80) is incorrect because it does not represent 60% of 150.
Choice C (120) is incorrect as it exceeds 100% of 150.
Choice D (80) is a duplicate of choice A and does not accurately represent 60% of 150.