HESI A2 Math Portion - Nurselytic

Correct Answer: D

Rationale:
To make one cake, you need 2½ cups of flour.
To make 6 cakes, you would need 6 times the amount of flour for one cake, which is 2½ x 6 = 15 cups.
Therefore, the correct answer is 15 cups.

Choices A, B, and C are incorrect as they do not correctly calculate the total amount of flour needed for 6 cakes.

Correct Answer: B

Rationale: The total number of marbles in the bag is 5 (red) + 7 (blue) = 12 marbles. The probability of drawing a red marble is the number of red marbles divided by the total number of marbles: 5/12. Simplifying 5/12 gives 1/3.
Therefore, the correct probability of drawing a red marble is 1/3.
Choice A (1/4) is incorrect because there are more red marbles than 1/4 of the total marbles.
Choice C (1/2) is incorrect as it represents half of the total marbles.
Choice D (2/3) is incorrect as it implies there are more red marbles than there actually are.

Correct Answer: A

Rationale: The Mayan numeric system was a base 20 system, known as vigesimal, as it used base 20 numerals. This system was unique and employed a combination of symbols and positional notation to represent numbers. The Babylonian system was a base 60 system, Roman numerals were based on combinations of letters, and Arabic numerals are in base 10, making choices B, C, and D incorrect.

Correct Answer: B

Rationale:
To convert military time to regular time, subtract 12 from the hours if the time is in the afternoon or evening. In this case, 21 - 12 = 9, so 2120 hours is equivalent to 9:20 P.M.
Therefore, the correct answer is option B, 9:20 P.M.

Choices A, C, and D are incorrect because they do not correctly adjust the military time to regular time format.
Choice A shows 9:20 A.M., which is incorrect as the time is in the evening.

Choices C and D show times that are not derived from the given military time, making them incorrect as well.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.