SOLUTION: How many times does an adult's heart beat in 270 s?

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Question 548661: How many times does an adult's heart beat in 270 s?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
According to this page, "For an adult, a normal resting heart rate ranges from 60 to 100 beats a minute"


So let's average the endpoints to get 80 beats per minute.


Now convert 270 seconds to minutes by dividing it by 60 to get 270/60 = 4.5 minutes


Finally, multiply that answer by 80 (our assumed average) to get 4.5*80 = 360


So this average adult with a heart rate of 80 beats per minute has his/her heart beat 360 times in 270 seconds