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bija089 [108]
3 years ago
15

Find the doubling time of an investment earning 7% interest if interest is compounded continuously

Mathematics
1 answer:
Alex3 years ago
5 0

Answer:

The doubling time of this investment would be 9.9 years.

Step-by-step explanation:

The appropriate equation for this compound interest is

A = Pe^(rt), where P is the principal, r is the interest rate as a decimal fraction, and t is the elapsed time in years.

If P doubles, then A = 2P

Thus, 2P = Pe^(0.07t)

Dividing both sides by P results in 2 = e^(0.07t)

Take the natural log of both sides:  ln 2 = 0.07t.

Then t = elapsed time = ln 2

                                       --------- = 0.69315/0.07 = 9.9

                                         0.07

The doubling time of this investment would be 9.9 years.

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The area of a rectangle is 54 m2 , and the length of the rectangle is 3 m more than twice the width. find the dimensions of the
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L = 3 + 2w

Find the width
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3 years ago
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ch4aika [34]

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7 0
3 years ago
Read 2 more answers
Question : <br> 3x-9y+12=?
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