HESI A2 Practice Test Math

Correct Answer: A

Rationale: To convert fluid ounces to gallons, we know that 1 gallon equals 128 fluid ounces. Therefore, to find how many gallons are in 576 fluid ounces, we divide 576 by 128, which equals 4. So, the correct answer is A: 4 gallons. Option B (5 gallons) is incorrect because the conversion calculation shows that 576 fluid ounces is equivalent to 4 gallons, not 5 gallons. Option C (6 gallons) is incorrect as well, as 576 fluid ounces is less than 6 gallons. Option D (3 gallons) is incorrect because the conversion calculation clearly demonstrates that 576 fluid ounces is equal to 4 gallons, not 3 gallons.

Correct Answer: C

Rationale: To calculate 0.9 divided by 3, we divide 0.9 by 3, which equals 0.3. This is the correct answer (C) because dividing 0.9 by 3 results in 0.3. Option A (0) is incorrect as the division does not equal 0. Option B (3) is incorrect as the result is not equal to 3. Option D (9) is incorrect as the division does not equal 9. Therefore, the correct answer is C (0.3).

Correct Answer: A

Rationale: To find x, first, find the ratio between the two parts of the equation: 7/5 = 91/x. Cross multiply to solve for x: 7x = 455. Divide by 7 to get x = 65 (Choice A). Choices B, C, and D are incorrect as they do not match the calculated value of x.

Correct Answer: A

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: A

Rationale: To find x, we need to set up a proportion: 15/x = 3/8. Cross multiply to get 15*8 = 3*x. Solving for x gives x=40. Choice A is correct because it correctly solves the proportion. Choices B, C, and D are incorrect as they do not yield the correct value of x when solving the proportion.