An airplane flies at a speed of 850 km/h in how much time will it travel a distance of 12,000 km?

Solution:
1. Given:
* Speed of the plane: 850 \ \text{km/h}
* Distance to cover: 12,000 \ \text{km}

2. Use the formula for time:
\text{Time} = \frac{\text{Distance}}{\text{Speed}}

3. Substitute the given values into the formula:
\text{Time} = \frac{12,000 \ \text{km}}{850 \ \text{km/h}}

4. Calculate the time:
\text{Time} \approx 14.1176 \ \text{hours}

5. Round the answer to a practical number of decimal places (usually two):
\text{Time} \approx 14.12 \ \text{hours}

The time it will take is approximately 14.12 \ \text{hours}.