HESI A2 Quizlet Math

Correct Answer: C

Rationale: To convert 1000 mg to teaspoons, we use the given conversion factor of 1 g = 1 tsp. First, we convert mg to grams by dividing 1000 mg by 1000 (1 g = 1000 mg), which equals 1 g. Since 1 g is equivalent to 1 tsp according to the conversion factor, the correct answer is 1 tsp. Choice A (.75 tsp) is incorrect because 1 g is equivalent to 1 tsp, not .75 tsp. Choice B (1.5 tsp) is incorrect as 1000 mg equals 1 g, which corresponds to 1 tsp, not 1.5 tsp. Choice D (1.25 tsp) is incorrect because 1000 mg converts to 1 tsp, not 1.25 tsp.

Correct Answer: B

Rationale: To convert yards to feet, we know that 1 yard is equal to 3 feet. Therefore, to find out how many feet are in 3 yards, we multiply 3 (yards) by 3 (feet per yard), which equals 9 feet. So, the correct answer is B: 9 feet. A: 18 feet - Incorrect, as it doubles the correct answer. C: 12 feet - Incorrect, as it is derived from multiplying 3 yards by 4 feet instead of 3 feet. D: 27 feet - Incorrect, as it multiplies 3 yards by 9 feet, which is incorrect conversion.

Correct Answer: A

Rationale: The correct answer is A: 0.09%. To convert 0.0009 to a percentage, you move the decimal point two places to the right. This results in 0.09%, which is equal to 0.0009. Choice B: 9% is incorrect because it represents a value that is 100 times greater than 0.0009. Choice C: 0.01% is incorrect because it represents a value that is 10 times smaller than 0.0009. Choice D: 0.90% is incorrect because it is 10 times greater than 0.0009.

Correct Answer: A

Rationale: To convert tons to pounds, you multiply the weight in tons by 2000 (since 1 ton = 2000 pounds). Therefore, 3 tons x 2000 = 6000 pounds. Choice A (6000 pounds) is correct. Choices B, C, and D are incorrect because they do not correctly convert 3 tons to pounds. B (5000 pounds) is too low, C (3000 pounds) is even lower, and D (7000 pounds) is too high.

Correct Answer: A

Rationale: To find the total cost of the comics, multiply $2.65 by 3, which equals $7.95. To determine the change, subtract the total cost from the amount paid: $20 - $7.95 = $12.05. Therefore, Robert received $12.05 in change. Option B is incorrect because it miscalculates the change. Option C is incorrect as it only accounts for one comic's cost. Option D is incorrect as it does not consider the total cost of all three comics.