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Starting at the age of 40, an average man loses 5% of his hair every year.

(a) Writea function describing the average lost of hair within years of time.
(b) At what age should an average man expect to have half his hair left?
(c) At what age the man is expected to have no hair left?

 Sep 18, 2021
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Is it 5% per year constantly beginning at 40?   Or is it 5% of the hair they have at the end of each year?

For the former:    (x-40)* .05 =  % hair loss

 

b) (x-40)(.05)  = .50    

c) (x-40)(.05) = 1.00       solve for 'x'

 Sep 18, 2021

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