document.write( "Question 369861: in order to achieve maximum results from aerobic excercise, one should maintain one's heart rate at a certain level. A 25 year old woman with a resting heart rate of 65 beats per minute should keep her heart rate between 143 and 169 beats per minute while exercising. She checks her pulse for 10 sec while excercising. What should the number of beats be \n" ); document.write( "
Algebra.Com's Answer #263748 by Fombitz(32388)\"\" \"About 
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\"143%3CH%3C169\"
\n" ); document.write( "Since there are six 10 second intervals in 1 minute,
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