232k views
4 votes
Last year, Jenny opened an investment account with $7400. At the end of the year, the amount in the account had decreased by6.5%. How much is this decrease in dollars? How much money was in her account at the end of last year?

1 Answer

3 votes

if the decreasing amount is 6.5% the r in our decay function will be:


1-0.065=0.935

and in one yeat t=1 so the equation will be:


\begin{gathered} y=7400(0.936)^1 \\ y=6925.4 \end{gathered}

User TheEnigmist
by
8.1k points

Related questions

asked Sep 27, 2017 150k views
KarlR asked Sep 27, 2017
by KarlR
7.0k points
2 answers
5 votes
150k views
asked Jun 28, 2019 55.9k views
William Boman asked Jun 28, 2019
by William Boman
7.8k points
2 answers
4 votes
55.9k views
2 answers
1 vote
181k views