HESI A2 Quizlet Math

Correct Answer: B

Rationale: Step 1: Let Mr. Johnson's pay be x. Step 2: He gives half to family, so he has x/2 left. Step 3: He pays $250 to landlord, leaving him with x/2 - $250. Step 4: He has 3/7 of his pay left, so x/2 - $250 = 3x/7. Step 5: Solve for x: x/2 - $250 = 3x/7. Step 6: Simplify and solve to get x = $3,500. Therefore, the correct answer is B: $3,500. Summary: A: $3,600 - Incorrect. Does not satisfy the given conditions. C: $2,800 - Incorrect. Does not satisfy the given conditions. D: $1,750 - Incorrect. Does not satisfy the given conditions.

Correct Answer: B

Rationale: To calculate the ideal body weight for a man who is 180cm tall: IBW = 50 + 2.3 * (180 - 150) = 50 + 2.3 * 30 = 50 + 69 = 119kg Therefore, the correct answer is B: 71kg. This is because the calculation results in an ideal body weight of 119kg, which corresponds to option B. The other choices (A, C, D) are incorrect as they do not match the calculated value.

Correct Answer: B

Rationale: To find the product of 226 and 55.3, multiply the two numbers together: 226 * 55.3 = 12,541.8 The correct answer is B (12,541.8) because this is the accurate result of the multiplication. Choice A (12,500) is incorrect as it is a rounded-down approximation. Choice C (12,600) is incorrect as it is a rounded-up approximation. Choice D (12,450) is incorrect as it is a result of rounding down the actual product.

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 calculate the number of diapers needed in a year, we multiply the number of times the baby is changed per day (6) by the number of days in a year (365). So, 6 diapers/day x 365 days/year = 2190 diapers (Choice A). This is the correct answer as it accounts for daily changes throughout the year. Choices B, C, and D are incorrect because they do not accurately calculate the total number of diapers needed based on the given information.