Mathematics 24 Online
OpenStudy (anonymous):

When Joanne gets a massage, at 6:00 am her heart rate is 81 beats per minute. At 6:30 am her heart rate slows to 63 beats per minute. Find the rate of change in her heart rate.

OpenStudy (anonymous):

The time difference between 6:00 and 6:30 is 30 min The heart beat difference is 81-63=18 beats so during 30 min the heart changed beat by 18 beats in other words 18 beats /30 min 18/30 beats/min = 0.6 beats/min the rate of change in heart rate is 0.6 beats/min ((((is this correct))

OpenStudy (annon):

that what i would've done without calculas

OpenStudy (anonymous):

so u agreein?

OpenStudy (annon):

ya but i dont know if thats right. it looks right lol

OpenStudy (anonymous):

lol

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