SOLUTION: Joey saved $2 today. If he doubles the number of dollars he saves each day, how many days, including today, will it take him to save more than $500?

Question 852395: Joey saved $2 today. If he doubles the number of dollars he saves each day, how many days, including today, will it take him to save more than $500?
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
First day: 2
Second day: 2 + 4 = 6
Third day: 2 + 4 + 8 = 14
Fourth day: 2 + 4 + 8 + 16 = 30
Fifth day: 2 + 4 + 8 + 16 + 32 = 62
Sixth day: 2 + 4 + 8 + 16 + 32 + 64 = 126
Seventh day: 2 + 4 + 8 + 16 + 32 + 64 + 128 = 254
Eight day: 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 = 510
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Do you see the pattern?
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