Antonio’s heart beats 255 times in 3 minutes. What is his heart rate, in beats per second?
A. 255 beats per second
B. 5,100 beats per second
C. 1.42 beats per second
D. 765 beats per second
To find the heart rate in beats per second, we need to divide the number of beats by the number of seconds.
There are 60 seconds in 1 minute. So, in 3 minutes, there are 3 * 60 = 180 seconds.
Antonio's heart beats 255 times in 180 seconds.
To find beats per second, we divide the number of beats by the number of seconds:
255 beats / 180 seconds = 1.42 beats per second
Therefore, the answer is C. 1.42 beats per second.