Mathematics: Between 2005 and 2009, the average rate of inflation was about 4.8% per year. if a cart of groceries cost $110 in 2005, what did it cost in 2009?

Between 2005 and 2009, the average rate of inflation - id200520094225906, ryleighgilmore1

Ответ:

reesemf2006

12.01.2022

$\bf \qquad \textit{Amount for Exponential change}\\\\
A=P(1\pm r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{starting amount}\to &110\\
r=rate\to 4.8\%\to \frac{4.8}{100}\to &0.048\\
t=\textit{elapsed period}\to &4\\
\end{cases}
\\\\\\
A=110(1+0.048)^4$

the rate is positive, because is a rate of increase, from 2005 to 2009, is 4 years, 2005 being t = 0

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Ответ:

coolquezzie

01.03.2021

Mathematics

9/3

Step-by-step explanation:

id.k

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Between 2005 and 2009, the average rate of inflation was about 4.8% per year. if a cart of groceries cost $110 in 2005, what did it cost in 2009?

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