Nokea
How many meters are in 3 kilometers? (Enter a numeric value only.)
- A. 300
- B. 3000
- C. 30
- D. 3
Correct Answer: B
Rationale: To convert kilometers to meters, remember that 1 kilometer is equivalent to 1,000 meters. Therefore, to determine how many meters are in 3 kilometers, you multiply 3 (kilometers) by 1,000 (meters), resulting in 3,000 meters. The correct answer is 3,000 meters, which corresponds to option B.
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Convert the percentage to a decimal: 126% =
- A. 126
- B. 0.0126
- C. 0.126
- D. 1.26
Correct Answer: D
Rationale: To convert a percentage to a decimal, you move the decimal point two places to the left. Therefore, 126% = 1.26 as a decimal. When you see 126%, it signifies having 126 parts out of 100, which is equivalent to 1.26 as a decimal. Remember that percentages represent parts out of 100, so converting to a decimal entails dividing by 100, resulting in the shift of the decimal point two places to the left.
What is 126% as a decimal?
- A. 126
- B. 0.0126
- C. 0.126
- D. 1.26
Correct Answer: D
Rationale: To convert a percentage to a decimal, divide the percentage value by 100. In this case, 126% as a decimal is calculated as 126 · 100 = 1.26. Therefore, 126% is equal to 1.26 as a decimal. Remember that 126% represents 126 out of 100 parts, which is equivalent to 1.26 in decimal form.
A patient is consuming a clear diet, and their urinary drainage bag indicates a total output of 1,000 mL in the past 24 hours. The patient's total intake includes 2 8-oz cups of coffee, 1 16-oz serving of clear soup, and 1 pint of water. What is the deficit in milliliters? (Enter a numeric value only. If rounding is necessary, round to the nearest whole number.)
- A. 400
- B. 450
- C. 440
- D. 500
Correct Answer: C
Rationale: To find the total intake, convert each volume to mL: 2 cups of coffee (8 oz each) = 2 x 8 x 29.5735 = 473.176 mL, 1 serving of clear soup (16 oz) = 16 x 29.5735 = 473.176 mL, and 1 pint of water = 473.176 mL. Thus, the total intake is 473.176 + 473.176 + 473.176 = 1,419.528 mL. The deficit is the difference between the total intake and output, which is 1,419.528 - 1,000 = 419.528 mL. When rounded to the nearest whole number, the deficit is 420 mL, making option C, 440, the closest choice.
How many liters are in 5000 milliliters? (Enter numeric value only.)
- A. 0.5L
- B. 50L
- C. 5L
- D. 500L
Correct Answer: C
Rationale: Correct Answer: C (5L)
Rationale:
1. 1 liter = 1000 milliliters.
2. To convert 5000 milliliters to liters, divide 5000 by 1000.
3. 5000 ml ÷ 1000 = 5 liters.
4. Therefore, there are 5 liters in 5000 milliliters.
Summary:
- A (0.5L): Incorrect, as dividing 5000 ml by 1000 equals 5L, not 0.5L.
- B (50L): Incorrect, as the conversion from milliliters to liters is 1:1000.
- D (500L): Incorrect, as dividing 5000 ml by 1000 equals 5L, not 500L.
The metric system of measurement was developed in France during Napoleon's reign. It is based on what multiplication factor?
- A. The length of Napoleon's forearm
- B. 2
- C. 10
- D. Atomic weight of helium
Correct Answer: C
Rationale: The metric system of measurement is based on the factor of 10. This factor allows for easy conversion between units as they are all related by powers of 10. For example, moving from centimeters to meters involves multiplying or dividing by 10, making the system simple and efficient to use. The length of Napoleon's forearm, choice A, is not the basis for the metric system. Choice B and choice D are also incorrect as they do not align with the fundamental principle of the metric system being based on units that are interrelated by powers of 10.