Answer:The normal resting heart rate for adults over the age of 10 years, including older adults, is between 60 and 100 beats per minute (bpm). Highly trained athletes may have a resting heart rate below 60 bpm, sometimes reaching 40 bpm. The resting heart rate can vary within this normal range.
Step-by-step explanation:
For

and

to be inversely proportional, there must be some constant

such that

Given that

when

, it follows that

Then when

, we have
I think the coefficient is the 12, before the variable
Hello here is a solution :