First, please do not use all capitals. Online it is like SHOUTING. Not only is it rude, but it is harder to understand. Thank you.
4.5/5 = .9
ON AN EKG STRIP A NURSE DETERMINES THAT A PATIENT'S HEART IS BEATING 5 TIMES EVERY 4.5 SECONDS.
CALCULATE THE TIME FOR EACH HEART BEAT
2 answers
calculate also the patients heart rate in beats/min