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2 years ago

13

Mabel Spends 4 hours to edit a 3 minute long video.She edit at a consistent rate.how long does mable spend to edit a 9 minute lo

ng video

1 answer:

Lelechka [254]2 years ago

4 0

A 9 minute video is 3 times the length of the 3 minute movie ( 9 / 3 = 3) so it will take her 3 times as long to edit it.

4 hours x 3 = 12 hours.

It will take her 12 hours.

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$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$500\\
r=rate\to 7\%\to \frac{7}{100}\to &0.07\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, thus four}
\end{array}\to &4\\
t=years\to &1
\end{cases}
\\\\\\
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