Mike weights 173 pounds What is the weight in Kilograms
The Correct Answer and Explanation is:
To convert Mike’s weight from pounds to kilograms, we can use the conversion factor that 1 kilogram equals approximately 2.2 pounds. The formula to convert pounds to kilograms is:Weight in kilograms=Weight in pounds2.2\text{Weight in kilograms} = \frac{\text{Weight in pounds}}{2.2}Weight in kilograms=2.2Weight in pounds
Given that Mike weighs 173 pounds, we substitute that value into the equation:Weight in kilograms=1732.2≈78.64 kg\text{Weight in kilograms} = \frac{173}{2.2} \approx 78.64 \, \text{kg}Weight in kilograms=2.2173≈78.64kg
So, Mike weighs approximately 78.64 kilograms.
Explanation:
The reason we use this specific conversion factor (1 kilogram = 2.2 pounds) is based on the relationship between pounds (lbs) and kilograms (kg) in the International System of Units (SI). The kilogram is the standard unit of mass in the metric system, while pounds are commonly used in the imperial system. The conversion factor is derived from the definition of the kilogram as the mass of the international prototype, and the relationship between pounds and kilograms has been experimentally determined.
The use of conversion factors is common when converting between different measurement systems, and it’s important to remember that the precision of the conversion depends on the number of decimal places you use in the conversion factor. In our case, we used 2.2 as an approximation, but in more scientific settings, a more precise conversion factor might be used, such as 2.20462.
By dividing 173 pounds by 2.2, we get a rough estimate of Mike’s weight in kilograms, which can be useful for various applications, such as in scientific contexts, health-related calculations, or when traveling between countries that use different measurement systems.
