Which conversion factor would you use to convert millimeters to miles?

• A. 1 mile = 1,609,344 millimeters
• B. 1 mile = 1,000,000 millimeters
• C. 1 mile = 100,000 millimeters
• D. 1 mile = 528,000 millimeters

Answer: (A)

Verified step by step guidance

1. Identify the correct conversion factor from the given options. The correct conversion factor is the one that accurately represents the relationship between miles and millimeters.
2. Understand that 1 mile is equivalent to 1,609,344 millimeters. This is the standard conversion factor used to convert between these two units.
3. To convert millimeters to miles, you will use the conversion factor as a fraction: \( \frac{1 \text{ mile}}{1,609,344 \text{ millimeters}} \).
4. Set up the conversion by multiplying the number of millimeters you have by the conversion factor \( \frac{1 \text{ mile}}{1,609,344 \text{ millimeters}} \). This will cancel out the millimeter units and leave you with miles.
5. Perform the multiplication to find the equivalent distance in miles. Remember to ensure that units cancel appropriately, leaving you with the desired unit of miles.