0.25 kg = __ lb a. 0.55 b. 5.5 c. 55 d. 550
The correct answer and explanation is:
The correct answer is a. 0.55 lb.
Explanation:
To convert kilograms (kg) to pounds (lb), the standard conversion factor is 1 kilogram equals approximately 2.20462 pounds. This means to convert any value in kilograms to pounds, multiply the kilogram value by 2.20462.
Given 0.25 kg, the calculation is:
0.25 kg × 2.20462 lb/kg = 0.551155 lb
Rounding to two decimal places, this becomes approximately 0.55 lb. This shows that 0.25 kilograms is about half a pound.
The other answer choices are much larger and do not fit the conversion correctly. For example, 5.5 pounds would be the equivalent of about 2.5 kilograms (since 5.5 ÷ 2.20462 ≈ 2.5 kg), which is ten times larger than 0.25 kg. Similarly, 55 pounds would equal roughly 24.95 kilograms, and 550 pounds would equal about 249.5 kilograms, both of which are far beyond the given 0.25 kg.
Understanding unit conversions is important in many fields including science, health, and engineering. The kilogram is a metric unit widely used around the world, while the pound is primarily used in the United States and a few other countries. Being able to convert between these units helps in accurately communicating measurements and avoiding errors.
In summary, multiplying the kilogram amount by 2.20462 gives the pound equivalent. Applying this to 0.25 kg results in approximately 0.55 pounds, confirming that the correct answer is option a.