An aeroplane was flying at a height of 1800m if it descends at a constant rate of 60m every minuite then what will be its temperature after 15minuites?

Not sure what the temperature is, but the altitude will be 1800-60*15 meters.

To find the final height of the plane after 15 minutes, we need to subtract the descent rate of 60 meters per minute for each minute from the initial height of 1800 meters.

Step 1: Calculate the total descent after 15 minutes
Descent rate per minute = 60 meters
Total descent after 15 minutes = Descent rate per minute * Number of minutes
Total descent after 15 minutes = 60 meters/minute * 15 minutes

Step 2: Subtract the total descent from the initial height
Final height = Initial height - Total descent
Final height = 1800 meters - (60 meters/minute * 15 minutes)

Simplifying the calculation:
Final height = 1800 meters - (900 meters)
Final height = 900 meters

Therefore, the plane's final height after 15 minutes of descent is 900 meters.