HESI A2 Math Practice

Correct Answer: A

Rationale: To convert ounces to pounds, we need to know that 1 pound is equal to 16 ounces. Given 80 ounces, dividing by 16 gives 5 pounds. Therefore, the correct answer is A: 5 pounds. Choice B is incorrect because it is too high, choice C is incorrect as it is too low, and choice D is also too low.

Correct Answer: C

Rationale: To convert 7/8 to a decimal, you divide 7 by 8. 7 divided by 8 equals 0.875. Therefore, the correct answer is C: 0.875. Option A and B are incorrect as they are the same and represent 0.8, not 0.875. Option D is incorrect as 7/8 is not equal to 0.9.

Correct Answer: A

Rationale: The correct answer is A: 1/6. There is only one face on a six-sided die that shows a 3, so the probability of rolling a 3 is 1 out of 6 possible outcomes (1, 2, 3, 4, 5, 6). To calculate the probability, divide the favorable outcomes (1) by the total possible outcomes (6), which gives 1/6. Summary: B: 1/4 - Incorrect, as there is only one 3 on a six-sided die, not 1 out of 4. C: 1/3 - Incorrect, as the probability of rolling a 3 is 1 out of 6, not 1 out of 3. D: 1/2 - Incorrect, as only one face represents a 3, not half of the faces on a six-sided die.

Correct Answer: B

Rationale: To convert grams to kilograms, we need to divide by 1000 since there are 1000 grams in 1 kilogram. Therefore, 2000 grams divided by 1000 equals 2 kilograms. Choice B is correct. Choices A, C, and D are incorrect as they do not accurately convert 2000 grams to kilograms. A (20 kg) is 10 times the correct answer, C (5 kg) is incorrect as it is half the correct answer, and D (10 kg) is also incorrect as it is 5 times the correct answer.

Correct Answer: A

Rationale: To solve the equation 3x + 2 = 14, we first isolate x by subtracting 2 from both sides, yielding 3x = 12. Then, we divide by 3 on both sides to find x = 4. Choice A is correct as x equals 4 satisfies the equation. Choices B, C, and D are incorrect as they do not satisfy the equation when substituted in.