Future of libraries

You know that thanks to the Internet, electronic communications and the development of online resources on the Internet annually decline, the number of traditional readership by 17%. This deal is the irreversible evolutionary shift from old books from libraries to immediately available and cheaper information from the Internet.

The library had in 1991 3336 readers. Determine the year in which the count of readers will be only 289.

Correct answer:

x =  2004

Step-by-step explanation:

p=117/100=10083=0.83  3336   p x1991 = 289 (x1991) ln  = ln 289   ln 3336 x=1991+(ln289ln3336)/lnp=1991+(ln289ln3336)/ln0.83=2004



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