A woman deposits $12,000 at the end of each year for 15 years in an investment account with a guaranteed interest rate of 7% compounded annually. (a) Find the value in the account at the end of the 15 years. (b) Her sister works for an investment firm that pays 6% compounded annually. If the woman deposits money with this firm instead of the one in part (a), how much will she have in her account at the end of 15 years? (c) How much would she lose or gain over 15 years by investing in her sister's firm? (a) The woman's deposits form an annuity due because the deposits are made at the end of each period. Therefore, the formula (1 + i)n – 1 FV = PMT should be used.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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A woman deposits $12,000 at the end of each year for 15 years in an investment account with a guaranteed interest rate of 7% compounded
annually.
(a) Find the value in the account at the end of the 15 years.
(b) Her sister works for an investment firm that pays 6% compounded annually. If the woman deposits money with this firm instead of the one in part
(a), how much will she have in her account at the end of 15 years?
(c) How much would she lose or gain over 15 years by investing in her sister's firm?
(a) The woman's deposits form an
annuity due
because the deposits are made at the
end
of each period. Therefore, the formula
(1+ i)n - 1
FV = PMT
should be used.
i
Transcribed Image Text:A woman deposits $12,000 at the end of each year for 15 years in an investment account with a guaranteed interest rate of 7% compounded annually. (a) Find the value in the account at the end of the 15 years. (b) Her sister works for an investment firm that pays 6% compounded annually. If the woman deposits money with this firm instead of the one in part (a), how much will she have in her account at the end of 15 years? (c) How much would she lose or gain over 15 years by investing in her sister's firm? (a) The woman's deposits form an annuity due because the deposits are made at the end of each period. Therefore, the formula (1+ i)n - 1 FV = PMT should be used. i
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