If 1 kilogram = 2.205 pounds, converting 165 pounds to kilograms and rounding to the nearest tenth gives
The Correct Answer and Explanation is :
To convert 165 pounds to kilograms, we use the conversion factor where 1 kilogram is approximately equal to 2.205 pounds. The formula for conversion is:
[
\text{kilograms} = \frac{\text{pounds}}{2.205}
]
Applying this to 165 pounds:
[
\text{kilograms} = \frac{165}{2.205} \approx 74.8447
]
Rounding to the nearest tenth, 165 pounds is approximately 74.8 kilograms.
Explanation:
- Step 1: Conversion Factor: The conversion factor is critical in converting between pounds (a unit of mass commonly used in the U.S.) and kilograms (the standard SI unit of mass). Knowing that 1 kilogram = 2.205 pounds allows for easy conversions by division.
- Step 2: Performing the Calculation: Dividing 165 pounds by 2.205 gives approximately 74.8447 kilograms.
- Step 3: Rounding: To make the number more practical for general use, we round to the nearest tenth. In this case, 74.8447 rounds to 74.8.
This conversion is frequently used in various contexts, such as in medical settings, sports, or anywhere measurements need to be standardized using the metric system. For example, when tracking body weight for health assessments, converting between pounds and kilograms ensures that measurements are consistent with international standards.