###### Exercise75

Target heart rate for moderate exercise is $$50\%$$ to $$70\%$$ of maximum heart rate. If we want to represent a certain percent of an individual’s maximum heart rate, we’d use the formula

$$\displaystyle{\text{rate}=p(220-a)}$$

where $$p$$ is the percent, and $$a$$ is age in years. Determine the target heart rate at $$51\%$$ level for someone who is $$53$$ years old. Round your answer to an integer.

The target heart rate at $$51\%$$ level for someone who is $$53$$ years old is beats per minute.

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