Question

the hot air balloon starts descending from an elevation of 2,400 feet. it descends at a constant rate of 400 feet per minute. how can we represent a decrease of 400 feet? we can represent a decrease of 400 feet per minute as \boxed{} feet per minute. 400 -400

Explanation:

Step1: Define change direction

A decrease means negative change.

Step2: Assign value to decrease

The rate of decrease is 400 ft/min, so represent as negative.

Answer:

-400