Final answer:
To convert the airplane's speed from 900 kilometers per hour to miles per hour, multiply it by the conversion factor 0.62, resulting in approximately 558 miles per hour.
Step-by-step explanation:
To convert an airplane's speed from kilometers per hour to miles per hour, you can use the given conversion ratio 1 kilometer equals about 0.62 miles.
Step-by-Step Conversion
- Multiply the airplane's speed in kilometers per hour (900 km/h) by the conversion factor (0.62).
- Perform the multiplication: 900 km/h × 0.62 mi/km = 558 mi/h.
Therefore, the airplane's speed is approximately 558 miles per hour when converted from kilometers per hour using the given ratio.