Suppose there is 1.4 a drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 64.2, what will be the temperature when the plane reaches an altitude of 8000?

The temperature will be 53

Step-by-step explanation:

Here, we are told that there is a temperature drop for every 1000 feet rise into the sky

Now, for 8000 ft, there will be 8 drops

Each drop is 1.4;

So 8 drops will be 1.4 * 8 = 11.2

So to get the current temperature, we simply go on to subtract from what we had initially

Mathematically, that will be

64.2 - 11.2 = 53

linear pair postulates

25% is the answer