Question 10 • TN-Mathematical Reasoning for Decision Making (Supplement)
The key concepts used to convert units between different systems of measurement are shown without the final two steps.1. Identify the units of measure to be converted.2. Write conversion factors.3. Cancel units.4.5. Which two steps will complete the list correctly?
Answer
A
4. Divide the original measurement by the conversion factors.5. Check for reasonableness.
B
4. Multiply the original measure by the conversion factors.5. Simplify the answer.
C
4. Multiply the original measure by the conversion factors.5. Check for reasonableness.
D
4. Divide the original measure by the conversion factors.5. Simplify the answer.
Explanation
After writing conversion factors, multiply the original measurement by the factors arranged so the unwanted units cancel. Then check whether the result is reasonable—for example, whether its size and units make sense. These are the steps listed in choice C.
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