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Thursday, October 22, 2015

More investments

Problem:



Solution:

a)
f(t)=10000×(1+0.024212)12t

b)
f(20)=16217.61042

c)
Annual growth factor = (1+0.024212)12=1.024470231
Annual percentage change = 1.0244702311=0.024470231=2.447023091%

d)
We want to find out the t such that f(t)=20000, solving using logarithms, get t=28.67131691

e)
That would become 10000×(1+0.0242365)365×20=16225.25613


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