At an altitude of 8 km, the temperature is -18 degrees. What is the temperature at the foot?

To solve the problem, you first need to indicate that for every 100 meters of altitude, the temperature value changes by 0.6 degrees Celsius.

Find the height ratio.

To do this, we divide the height of the vertex by a constant value.

100 meters = 0.1 km.

We get:

8 / 0.1 = 80.

In order to find the temperature difference, multiply the resulting ratio by 0.6 degrees.

80 * 0.6 = 48 degrees Celsius.

We find the temperature at the foot.

To do this, add the difference to the temperature at the top.

-18 + 48 = +30 degrees Celsius.