Question

Change the following into a unit rate:

Falling at 144 ft per 12 seconds.
A. 12 ft/second
B. 24 ft/second
C. 12 ft/minute
D. 24 ft/minute

Answer 1

The unit rate of an object falling at 144 ft per 12 seconds is 12 feet per second, corresponding to option A.

Step-by-step explanation:

To change the rate of falling at 144 ft per 12 seconds into a unit rate, you divide the number of feet by the number of seconds to find the rate of feet per second. This can be calculated as follows:

144 ft ÷ 12 s = 12 ft/s

Therefore, the unit rate of the object falling is 12 feet per second, which corresponds to option A. Unit rates are helpful to easily compare different situations that involve rates.