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Krista put 1 cent into her new bank on a Sunday morning. On Monday she put 2 cents into her bank. On Tuesday she put 4 cents into her bank, and she continued to double the amount of money she put into her bank each day for two weeks. After how many days the total amount of money in her bank first exceed 100 dollars?

 Oct 21, 2020
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\(\sum_{1}^{14}\)  2n-1  = $ 163.83   

 

  Day 14 will exceed 100 dollars       (day 13 =$81.91 )

"After how many days the total amount of money in her bank first exceed 100 dollars?"

                       funny wording.....could be AFTER day 13 on day 14 ??          

 Oct 21, 2020
edited by ElectricPavlov  Oct 21, 2020
edited by ElectricPavlov  Oct 21, 2020
edited by ElectricPavlov  Oct 21, 2020

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