# Exponential growth word problem

a) Find the value k of the exponential growth rate. Assume $V_0$ equals=269.

b) Find the exponential growth function in terms of t, where t is the number of years since 1980.

c) Estimate the value of the coin in 2013.

d) What is the doubling time for the value of the coin to the nearest tenth of a year?

e) Find the amount of time after which the value of the coin will be $ \$ 2878$.

Fykl

38

## Answer

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Erdos

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The answer is accepted.

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