Help me please!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

NISA [10]3 years ago

4 0

Your answer is 110.6. If T remains constant with R, then divide R by 5, then multiply it by 7, then you have ur answer 110.6. Hope this helped!

Thanks!

~Steve

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Sodium-24 has an hourly decay rate of about 5%. How many grams of a 900 g sample will remain after 90 hours? Round the answer to

Yuki888 [10]

$\bf \qquad \textit{Amount for Exponential change}\\\\
A=P(1\pm r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{starting amount}\to &900\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
t=\textit{elapsed period}\to &90\\
\end{cases}
\\\\\\
A=900(1-0.05)^{90}$