SOLUTION: If you get a penny a day and each day it doubles the amount given on the previous day will we have $10,485.75 on the 20th day ?

Algebra ->  Square-cubic-other-roots -> SOLUTION: If you get a penny a day and each day it doubles the amount given on the previous day will we have $10,485.75 on the 20th day ?      Log On


   

Question 630280: If you get a penny a day and each day it doubles the amount given on the previous day will we have $10,485.75 on the 20th day ?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Geometric sequence,  r = 2  and n = 20

S+=++a%5B1%5D%28%281-r%5En%29%2F%281-r%29%29

  S+=++.01%28%281-2%5E20%29%2F%28-1%29%29+=+10485.75