Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Selena2345

  • one year ago

Heather wanted to measure the effects of erosion on a mound of soil in her backyard. The area she measured was 9 inches in height. During a storm it eroded 1/8 every day for 8 days. Write an expression that can be used to find the height of the mound of soil after the storm and simplify the expression.

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

    originally: 9in every day (1/8)th gets eroded.. how much is left out? -> 7/8th end of day 1-> \(h_1=9\times{7\over8}\) end of day 2->\(h_2=h_1{7\over8}=9\times\left({7\over8}\right)^2\) and so on.. end of nth day-> \(h_n=9\times\left({7\over8}\right)^n\)

  2. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so how much would be left?

  3. Selena2345
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    63/8

  4. Selena2345
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    IS IT RIGHT electro kid

  5. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it will be \(9\times\left({7\over8}\right)^8\)

  6. Selena2345
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    3.092480242

  7. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yep

  8. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    how did you get 63/8?

  9. Selena2345
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i multipled 9*7/8

  10. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    that is after the first day.. look at my elaboration.. after "n" number of days... \(h_n\)

  11. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    the question asks you to obtain that expression!

  12. Selena2345
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    CAN YOU HELP ME WITH 9 WORD PROBLEMS PLEASE ?

  13. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    say whaaaat!! i needed to chill, so i did this one.. there are lots o' nice people over here... post em up, I am sure somebody would answer

  14. electrokid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    :)

  15. Selena2345
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    NOBODY ANSWER PLEASE

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.