If you save one penny on january 1 two pennies on january 2 and three on january 3 and continue this pattern for a year. How many pennies will you have
The formula you need is: S = (n/2) (2a1 + (n - 1) x d) so then you plug in the numbers: S = (365/2) (2 x 1 + (365 - 1) x 1) then combine like terms: S = 66795 pennies A dollar is 100 pennies. Therefore, at the end of the year, the total savings is $667.95.
