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Yuki888 [10]
3 years ago
5

Stuart put $99 into a CD that pays 2.6% interest, compounded monthly. According to the Rule of 72, approximately how long will i

t take for his money to double? Round to the nearest tenth. Show your work.
Mathematics
2 answers:
Temka [501]3 years ago
6 0

Answer:  27 years (approx)

Step-by-step explanation:

According to the Rule of 72,

If the product of interest rate and time is equal to 72, the amount will be doubled.

According to the question,

The annual rate = 2.6%

Let after t years the amount will be doubled.

Thus, 2.6 × t = 72

t = \frac{72}{2.6} = 27.6923076923

Since, the actual time will always less than the time gets by the 72 rule.

Thus, Approx 27 year after the amount will be doubled.


Taya2010 [7]3 years ago
4 0
72/2.6=27.7 years
Hope it helps :-)
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