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In order to achieve maximum results from aerobic exercises, one should maintain ones heart rate at a certain level. A 45 year old women with resting heart rate of 70 beats per minute should keep her heart rate between 135 and 154 beats per minute while exercising. She checks her pulse for 10 sec while exercising. what should the number of beats be?

The number of beats in 10 sec should be between ___ and ___ beats?

  • algebra -

    135/6 = ?
    154/5 = ?

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