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14 March, 09:58

During exercise, the recommended maximum heart rate in beats per minute is modeled by the formula, M = 176 - 0.8A, where M is the maximum heart rate and A is the person's age. Solve the formula for A. At what age would you have a recommended maximum heart rate in beats per minute of 140?

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  1. 14 March, 10:08
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    At 80 years pld is when a maximum heart rate of 140 beats per minute is good
  2. 14 March, 10:27
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    We are going to say. 140=176-0.8A. This maens that 0.8A=176-140.

    0.8A=36. 0.8A/0.8=36/0.8. Therfore A=45 Years
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