your initial investment. (Let B be the account balance in dollars and investment.) 8(t)= dollars (b) What monthly interest rate best represents this account? Round your answer to % (c) Calculate the decade growth factor. (Round your answer to two decimal places. (d) Use the formula you found in part (a) to determine how long it will take for the your answer to the nearest whole number.)
your initial investment. (Let B be the account balance in dollars and investment.) 8(t)= dollars (b) What monthly interest rate best represents this account? Round your answer to % (c) Calculate the decade growth factor. (Round your answer to two decimal places. (d) Use the formula you found in part (a) to determine how long it will take for the your answer to the nearest whole number.)
Chapter1: Financial Statements And Business Decisions
Section: Chapter Questions
Problem 1Q
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Question

Transcribed Image Text:You initially invest $400 in a savings account that pays a yearly interest rate of 3%.
(a) Write a formula for an exponential function giving the balance in your account as a function of the time since
your initial investment. (Let B be the account balance in dollars and t be the number of years since the initial
investment.)
8(t)=
dollars
(b) What monthly interest rate best represents this account? Round your answer to three decimal places.
%
(c) Calculate the decade growth factor. (Round your answer to two decimal places.)
(d) Use the formula you found in part (a) to determine how long it will take for the account to reach $536. (Round
your answer to the nearest whole number.)
yr
Explain how this is consistent with your answer to part (c),
At the end of one decade, there will be $
where the account reaches $536 at the end of
This --Select-- o the answer found above
years,
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