181k views
1 vote
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-example-1

1 Answer

3 votes

Answer:

19g

Step-by-step explanation:

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


(155g)/(2)=77.5g

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


(77.5g)/(2)=38.75g

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


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

User JuhaKangas
by
9.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories