Posted by **Jean** on Wednesday, December 5, 2012 at 1:44pm.

Lee Holmes deposited $ 15,000 in a new savings account at 9% interest compounded semiannually, At the beginning of year 4, Lee deposites an additional $40000 at 9% interest compounded semiannually. At the end of the 6 years what is the balance in Lee;s account

- Business Math -
**Henry**, Friday, December 7, 2012 at 7:18pm
P1 = Po(1+r)^n.

P1 = Principal after 1st 3 years.

Po1 = $15,000 = Initial deposit @ beginning of the 1st 3 years.

r = (9%/2)/100% = 0.045 = Semi-annual %

rate expressed as a decimal.

n = 2Comp/yr * 3yrs = 6 Compounding

periods.

Solve the given Eq and get:

P1 = $19,533.90.

P2 = Po2(1+r)^n.

P2 = Principal amount after the 2nd 3 years.

Po2 = 19,533.90 + $40,000 = $59,533.90

= Initial deposit for 2nd 3 years.

Solve for P2.

Answer: P2 = $77,528.63.

NOTE: r,and n are the same for both P1 and P2 calculations.

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