SOLUTION: If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day and so on, how much money will be in the bank after 40 days? How sh

Algebra ->  Sequences-and-series -> SOLUTION: If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day and so on, how much money will be in the bank after 40 days? How sh      Log On


   



Question 967979: If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day and so on, how much money will be in the bank after 40 days?
How should I set this up?

Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
= n(n+1)/2
=(40 x 41)/2
=820 cents
=$8.20