Use the conversion ratio 1 kilometer equals about 0.62 miles to solve the

Question

following problem. An airplane travels about 900 kilometers per hour
What is the airplane's speed in miles per hour?

Answer 1

To convert the speed of the airplane from kilometers per hour to miles per hour, you can use the conversion ratio of 1 kilometer equals about 0.62 miles.

Given that the airplane travels at 900 kilometers per hour, you can calculate the speed in miles per hour as follows:

$$\text{Speed in miles per hour}=\text{Speed in kilometers per hour}\times \text{Conversion factor}$$

Substituting the values:

$$\text{Speed in miles per hour}=900,\text{km/h}\times 0.62,\text{miles/km}$$

Now, perform the multiplication:

$$\text{Speed in miles per hour}=900\times 0.62=558,\text{miles per hour}$$

Therefore, the airplane's speed is approximately 558 miles per hour.