HESI Mathematics

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How many pints are in 80 ounces?

  • A. 1,280 pints
  • B. 16 pints
  • C. 15 pints
  • D. 5 pints
Correct Answer: D

Rationale: To determine how many pints are in 80 ounces, we use the conversion that 1 pint is equal to 16 ounces. Therefore, 80 ounces divided by 16 ounces per pint equals 5 pints (80/16 = 5). Choice D, 5 pints, is the correct answer. Choice A is incorrect as it miscalculates by multiplying 80 by 16 instead of dividing. Choices B and C are incorrect as they do not use the correct conversion factor of 16 ounces per pint. Thus, the correct answer is D, 5 pints, as it accurately applies the conversion factor to solve the problem.

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Round to the nearest whole number: What is 17 out of 68 as a percent?

  • A. 17%
  • B. 25%
  • C. 32%
  • D. 68%
Correct Answer: B

Rationale: To convert a fraction to a percentage, divide the numerator (17) by the denominator (68) to get approximately 0.25. Then, multiply this decimal by 100 to get the percentage. 0.25 * 100 = 25%. Since we are asked to round to the nearest whole number percentage, the answer is 25%. Therefore, the correct choice is B, 25%.

In Mr. Garcia's class, two-thirds of the students are boys. If there are 27 students in the class, how many of them are girls?

  • A. 1
  • B. 9
  • C. 12
  • D. 20
Correct Answer: B

Rationale: If two-thirds of the students are boys, then one-third must be girls. To find the number of girls, we calculate one-third of the total number of students. Since the total number of students is 27, one-third of 27 is 9. Therefore, there are 9 girls in Mr. Garcia's class.

Subtract: 15.7 - 9.8 =

  • A. 6.1
  • B. 8.96
  • C. 5.9
  • D. 4.3
Correct Answer: C

Rationale: To subtract two decimal numbers, align the decimal points and then subtract each place value. In this case, 15.7 - 9.8 = 5.9. Therefore, the correct answer is 5.9. When subtracting decimals, it is crucial to maintain the alignment of the decimal points to ensure accurate calculations. In this subtraction problem, the tenths and ones places are being subtracted individually. Subtracting 8 from 7 in the tenths place results in 1, while subtracting 9 from 15 in the ones place results in 6. Combining these results, we get a final answer of 5.9.

Solve for x: 7:42 :: 4:x

  • A. 12
  • B. 48
  • C. 24
  • D. 16
Correct Answer: C

Rationale: To solve the analogy 7:42 :: 4:x, we first simplify the ratio 7:42 to 1:6 by dividing both numbers by 7. Maintaining the same simplification, we apply it to 4:x, resulting in 4:24. Therefore, x = 24, making choice C the correct answer as it completes the analogy.

Add: 1/4 + 3/8 =

  • A. 5/8
  • B. 1/2
  • C. 4/12
  • D. 1/3
Correct Answer: A

Rationale: To add the fractions, first convert 1/4 to a common denominator with 3/8. The common denominator is 8: (1/4) = 2/8. Then, add: 2/8 + 3/8 = 5/8. Therefore, the correct answer is A) 5/8.

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