Your friend weighs 93 kg. How many pounds is this? Express your answer rounded to the nearest tenth of a pound.
The Correct Answer and Explanation is:
To convert kilograms to pounds, you use the conversion factor:
1 kilogram ≈ 2.20462 pounds
So, if your friend weighs 93 kg, you multiply: 93×2.20462=205.0296693 \times 2.20462 = 205.02966
Rounded to the nearest tenth, this becomes: 205.0 pounds\boxed{205.0 \text{ pounds}}
Explanation
Weight is commonly measured in different units depending on the country or context. Most of the world uses the metric system, where mass is measured in kilograms (kg). In contrast, the imperial system, commonly used in the United States, uses pounds (lb) to measure weight. So, if you’re converting between these two systems, you’ll need a reliable conversion factor.
The standard conversion rate is: 1 kilogram=2.20462 pounds1 \text{ kilogram} = 2.20462 \text{ pounds}
This means that for every kilogram of weight, there are roughly 2.2 pounds. To convert from kilograms to pounds, you multiply the number of kilograms by 2.20462.
In this case, your friend weighs 93 kilograms. Using the formula: 93×2.20462=205.0296693 \times 2.20462 = 205.02966
After calculating, we get approximately 205.02966 pounds. The next step is to round this to the nearest tenth (one decimal place). When rounding decimals, you look at the digit in the hundredths place, which is 2 in this case. Since 2 is less than 5, you round down, and the number remains: 205.0 pounds\boxed{205.0 \text{ pounds}}
This process of unit conversion is essential in science, medicine, travel, and daily life, especially when communicating across countries that use different measurement systems. It ensures clarity and consistency, especially in health contexts like knowing someone’s body weight.
