(a)
Range for heart rates of a 15 year old person.
(a)
Answer to Problem 51PPE
A 15 year old person should have heart rate of 102.5 to 184.5 beats per minute.
Explanation of Solution
Given data:
Inequality of relation between heart rate and age
Formula used:
Inequality equation:-
Calculation:
- Heart rate for a 15 year old person
So, a=15 for equation (1)
It should be between 102.5 and 184.5 per minute.
Conclusion:
A 15 year old person should have heart rate of 102.5 to 184.5 beats per minute.
(b)
Age of a person whose rate is between 99 and 178.2 beats per minute.
(b)
Answer to Problem 51PPE
Person having heart rate of 99 to 178.2 beats per minute should be 22 years old.
Explanation of Solution
Given data:
Inequality of relation between heart rate and age
Formula used:
Inequality equation:-
Calculation:
Age of a person having heart beat between 99 to 178.2 will be
As the lower heart beat of person is 99 beats per minute . So,
So the age of person is 22 years
Conclusion:
Person having heart rate of 99 to 178.2 beats per minute should be 22 years old.
Chapter 3 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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