Question

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?

Answer 1

At 80 years pld is when a maximum heart rate of 140 beats per minute is good

Answer 2

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