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tonya3498
01.10.2019 •
Mathematics
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a high-interest savings account pays 5.5% interest compounded annually. if $300 is deposited initially and again at the first of each year, which summation represents the money in the account 10 years after the initial deposit?
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Ответ:
Step-by-step explanation:
If $ 300 is deposited in an account which pays 5.5% interest compounded annually.
Then the amount after 1 year,
Similarly, In the second year the amount in his account,
=![316.5 + 316.5(1.055)](/tpl/images/0278/4979/78e39.png)
In third year the amount in his account =![316.5 +316.5(1.055)+ 316(1.055)^2](/tpl/images/0278/4979/68d74.png)
In fourth year =![316.5 + 316.5(1.055) + 316(1.055)^2 + 316.5(1.055)^3](/tpl/images/0278/4979/9f1f6.png)
According to the question,
He repeat this process up to 10 years,
Hence, in the 10 years the amount in his account
=
--------- up to 10 terms,
=![\sum_{n=1}^{10} 316.5(1.055)^{n-1}](/tpl/images/0278/4979/92ee3.png)
Ответ:
answer:
1%
Step-by-step explanation: