3 years ago

Solve for x. Explain the steps taken to find the solution. 3/2 + 3x/5 = 9/2 4x/5

Mathematics

1 answer:

Sladkaya [172]3 years ago

6 0

Answer:

iymb usy,jikdokjjjzkkjzjkjhhg6993

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The? half-life of a radioactive substance is 20 years. If you start with some amount of this? substance, what fraction will rema

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$\bf \textit{Amount for Exponential Decay using Half-Life} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\\ t=\textit{elapsed time}\dotfill &120\\ h=\textit{half-life}\dotfill &20 \end{cases} \\\\\\ A=P\left( \frac{1}{2} \right)^{\frac{120}{20}}\implies A=P\left( \frac{1}{2} \right)^6\implies A=P\left( \cfrac{1^6}{2^6} \right)\implies A=\cfrac{1}{64}P$