Alex determined that his average speed when he commuted to work is 35 miles per hour. What conversion factor can be used to convert this speed to feet per hour?

Question

StartFraction 1 mile Over 5,280 feet EndFraction
StartFraction 1 hour Over 5,280 feet EndFraction
StartFraction 5,280 feet Over 1 mile EndFraction
StartFraction 5,280 feet Over 1 hour EndFraction

Answer 1

To convert miles per hour to feet per hour, you need to use the conversion factor that relates miles to feet. Since 1 mile is equal to 5,280 feet, the appropriate conversion factor to use is:

\[ \frac{5,280 \text{ feet}}{1 \text{ mile}} \]

Thus, the correct answer is:

\[ \text{StartFraction } 5,280 \text{ feet } \text{ Over } 1 \text{ mile } \text{ EndFraction} \]