ChiziteremH166355 ChiziteremH166355
  • 25-10-2022
  • Mathematics
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Finding a final amount in a word problem on exponential growth or decay

Finding a final amount in a word problem on exponential growth or decay class=

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JaileiJ331249 JaileiJ331249
  • 25-10-2022

Answer:

19g

Explanation:

Given the starting amount as 155grams, the below amount will be left after the 1st half life;

[tex]\frac{155g}{2}=77.5g[/tex]

After the 2nd half-life, the below amount will remain;

[tex]\frac{77.5g}{2}=38.75g[/tex]

After the 3rd half-life, the below amount will remain;

[tex]\begin{gathered} \frac{38.75}{2}=19.375g\approx19g\text{ (rounding to the nearest gram)} \\ \end{gathered}[/tex]

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