A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

A fossilized animal that was killed by a volcanic eruption has 6.25 percent of its original amount of carbon-14 remaining; this radioisotope has a half-life of 5730 years. How long ago did the volcano erupt? 34,380 years ago 22,920 years ago 17,190 years ago 9,168 years ago

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I'll give a medal to whoever gets the answer!

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Cuanchi

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Rushwr

  4. cuanchi
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    after 1 half-life the remained amount of C14 will be 50% of de original= 1/2 after 2 half-life the remained amount of C14 will be 50% of the 50% of the original= 1/4 =25% after 3 half-life the remained amount of C14 will be 50% of the 25% of the original= 1/8 = 12.5% after 4 half-life the remained amount of C14 will be 50% of the 12.5% of the original= 1/16 = 6.25 % if 1 Half life is 5730 years 2 Half life is 2 x 5730 years 3 Half life is 3 x 5730 years

  5. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.