Tuesday, April 14, 2015

Tuesday, April 14th

For continously compounded interest:
1.  Find the value of a $20,000 investment after 15 years of growth at 8.4%.

2.  Find the value of a $250,000 investment after 25 years of growth at 6.5%.

3.  How long would it take $50,000 to grow to $150,000 at 7% APR?

4.  What is the "effective" APR of an accounting growing at 5% and earning continuosly compounded interest?

5.  Assuming the half-life of carbon-14 is 5730 years, how old is a pertified tree that now contains 3.5% of the carbon-14 that was present while it was alive?




6.  An organism contained 15 grams of the carbon-14 isotope upon death.  How much carbon-14 will remain in the organism (if preserved) after 100,000 years pass?


Do the following book problems:
page 643 #31-36

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