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August 22, 2014

August 22, 2014

Posted by **aj** on Monday, March 14, 2011 at 9:55pm.

- college math -
**Lela**, Monday, March 14, 2011 at 11:56pmso you would start with how much of the money is going to be charged interest. You are being offered a total of 3 installments, but one is being paid now. That means there won't be interest on that installment. Therefore, you have 2 installments that will have compounded interest over a total of 2 years.

Next you use the continuous interest formula, which is S = Pe^rt, where e=2.71 (constant). S is the final value. P is the initial investment, which would be 2400 (1200 times 2 for the 2 years) in your case. r is the percentage rate. And t is the time in years.

Once you find the answer to the formula, you add the cost of the third installment, which was 1200. And you will have the answer. hope that helps!

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