A parachutist descends at 36 feet in 3 seconds.
Express the rate of the parachutist’s change in height as unit rate.
-36 ft / 3 sec = ? ft/s
-36 ft / 3 sec = -12 ft
Note: I got the (-) sign because the question says descends (which means decrease and in this case, it is referred to as the (-) negative sign)
Note: Any time you multiply or divide a negative # with a positive # you will always get a negative #.
Hopes this helps
To express the rate of the parachutist's change in height as a unit rate, we need to determine the change in height per unit of time.
Given that the parachutist descends 36 feet in 3 seconds, we can calculate the rate of change in height by dividing the change in height (36 feet) by the corresponding change in time (3 seconds):
Rate of change in height = Change in height / Change in time
Rate of change in height = 36 feet / 3 seconds
Simplifying this expression:
Rate of change in height = 12 feet/second
Therefore, the rate of the parachutist's change in height is 12 feet per second.