HESI Mathematics

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Report all decimal places: 3.7 + 7.289 + 4 =

  • A. 14.989
  • B. 5.226
  • C. 15
  • D. 15.07
Correct Answer: A

Rationale: To find the sum of 3.7, 7.289, and 4, add them together: 3.7 + 7.289 + 4 = 14.989. The correct answer is A, 14.989, as it accurately reports all decimal places in the sum. When adding numbers with decimal points, it is crucial to maintain the decimal precision to obtain the correct result. In this case, the sum includes three decimal places, so the answer should also have three decimal places to represent the precise result. Therefore, 14.989 is the accurate sum that includes all the decimal places present in the numbers being added.

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What is the result of adding 23.5 + 7.025?

  • A. 30.525
  • B. 30.5
  • C. 30.025
  • D. 16.475
Correct Answer: A

Rationale: To find the sum of 23.5 and 7.025, align the decimals and add the numbers: 23.5 + 7.025 = 30.525. The correct answer is choice A, which is 30.525. When adding decimal numbers, it's essential to align the decimal points properly and perform the addition as usual. Careful attention to decimal arithmetic ensures accuracy in the final result, making choice A the correct answer.

What is the temperature in Celsius when 98.6 degrees Fahrenheit is converted?

  • A. 30 Celsius
  • B. 37 Celsius
  • C. 47 Celsius
  • D. 21 Celsius
Correct Answer: B

Rationale: To convert Fahrenheit to Celsius, you can use the formula: Celsius = (Fahrenheit - 32) x 5/9. Substituting 98.6 for Fahrenheit gives us: Celsius = (98.6 - 32) x 5/9 = 37 Celsius. Therefore, the correct answer is 37 Celsius. It is important to understand this conversion formula to accurately convert temperatures between the Fahrenheit and Celsius scales.

What is the result of adding: 6 3/4 + 8 1/6 = ?

  • A. 14 & 11/12
  • B. 12 & 3/24
  • C. 35/6
  • D. 14 & 2/5
Correct Answer: A

Rationale: To add the mixed numbers 6 3/4 and 8 1/6, first convert them to improper fractions. 6 3/4 becomes 27/4, and 8 1/6 becomes 49/6. When you add these fractions, you get 76/6, which simplifies to 12 & 2/3. Converting 12 & 2/3 back to a mixed number gives 14 & 11/12. Therefore, the correct sum of 6 3/4 + 8 1/6 is 14 & 11/12.

Ratio and Proportion: 9 : X :: 5 : 300 (Enter numeric value only.)

  • A. 450
  • B. 540
  • C. 600
  • D. 480
Correct Answer: B

Rationale: To find the value of X in the proportion 9 : X :: 5 : 300, we can set up the equation (9/X) = (5/300) and cross-multiply. This gives us 9 * 300 = 5 * X. Simplifying further, we get X = (9 * 300) / 5 = 540. Therefore, the correct answer is 540, which is option B.

A healthcare professional works in a military hospital from 1300 to 2000. What time of day does this healthcare professional work?

  • A. Early morning to early afternoon
  • B. Lunchtime to midnight
  • C. Early afternoon to bedtime
  • D. Midnight to sunrise
Correct Answer: C

Rationale: The military time of 1300 to 2000 corresponds to 1:00 PM to 8:00 PM. The healthcare professional works during this time frame from early afternoon to bedtime.

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