Which is larger in each pair, and by approximately how much? (b) A mile or a kilometer

Key Concepts

Unit Conversion

Unit conversion is the process of converting a measurement from one unit to another. In this case, it involves converting miles to kilometers or vice versa. Understanding the conversion factors is essential for accurately comparing the two units of distance.

Metric vs. Imperial Systems

The metric system (kilometers) and the imperial system (miles) are two different systems of measurement. The metric system is based on powers of ten, making it more straightforward for calculations, while the imperial system uses various units that do not have a consistent relationship, which can complicate conversions.

Approximate Values

Approximate values are used to provide a quick comparison between different units. For instance, one mile is approximately equal to 1.609 kilometers. This approximation allows for a simple understanding of the relative sizes of the two units without needing precise calculations.