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WILL MEDAL!!! help please! 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 persons age. Approximately, at what age would you have a recommended heart rate in beats per minute of 135? a. 25 years b. 39 years c. 51 years d. 53 years

Respuesta :

We know that the maximum heart rate is 135.
135= 176 - 0.8A
0.8A = 41
A = 51.25 ≈ 51
The answer is choice C

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