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You finally get an allowance . You put $2 away in January, 4$ away in February, $8 away in March, $16 away in April and followe...Asked by Anonymous
You finally get an allowance! You put $2. away in January, $4. away in February, $8. away in March, $16 away in April and followed this savings pattern through to December. How much money do you have in 12 months?
Answers
Answered by
Isaac
I see a geometric progression here
a=2
R=2
N=12
T12=2(2)^11=?
a=2
R=2
N=12
T12=2(2)^11=?
Answered by
Reiny
Or,
just continue grind out the pattern, you are already at April, just a few more
and you will get Isaac's answer.
just continue grind out the pattern, you are already at April, just a few more
and you will get Isaac's answer.
Answered by
henry2,
n = the number of months.
Amount = 2^n * 2 = 2^3 * 2 = $16 after the 3rd month(March).
Amount = 2^12 * 2 = $8,192.
Amount = 2^n * 2 = 2^3 * 2 = $16 after the 3rd month(March).
Amount = 2^12 * 2 = $8,192.
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