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Published byBrennan Leggett Modified over 2 years ago

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What is Interest? Interest is the amount earned on an investment or an account. Annually: A = P(1 + r) t P = principal amount (the initial amount you borrow or deposit) r = annual rate of interest (as a decimal) t = number of years the amount is deposited or borrowed for. A = amount of money accumulated after n years, including interest. n = number of times the interest is compounded per year (semiannually, quarterly, monthly, etc.)

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$600 @ 12% interest for 7 years

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$12,000 @ 5% interest for 8 years compounded… 1.Semiannually 2.Quarterly 3.Monthly

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FIND THE AMOUNT $750 @ 11% for 12 years $1500 @ 2.5% for 5 years Quarterly Monthly

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4.2 Compound Interest Day 2. Compound Interest A = P(1 + ) nt A = amount of $ accumulated P = initial amount of $ invested (principle) r = rate of interest.

4.2 Compound Interest Day 2. Compound Interest A = P(1 + ) nt A = amount of $ accumulated P = initial amount of $ invested (principle) r = rate of interest.

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