Mathematics, 24.01.2020 17:31 jess4791
Doctors use the term maximum heart rate (mhr) when referring to the quantity found by starting with 220 beats per minute and subtracting 1 beat per minute for each year of a person's age. doctors recommend exercising 3 or 4 times each week for at least 20 minutes with your heart rate increased from its resting heart rate (rhr) to its training heart rate (thr), where
thr = rhr + .65(mhr - rhr)
which of the following is closest to the thr of a 43-year-old person whose rhr is 54 beats per minute?
Answers: 1
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