A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
anonymous
 5 years ago
A 15 gram sample of radioactive iodine decays in such a way that the mass remaining after t days is given by m(t)=15e^(0.087t), where m(t) is measures in grams. After how many days is there only 8 grams remaining?
anonymous
 5 years ago
A 15 gram sample of radioactive iodine decays in such a way that the mass remaining after t days is given by m(t)=15e^(0.087t), where m(t) is measures in grams. After how many days is there only 8 grams remaining?

This Question is Closed

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.18  = e^(.087t) 15 8 ln() = .087t 15 ln(8/15)  = t .087

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.1dbl chk and we get: m(t) = 7.999999....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yayyyy! Thanks again :)
Ask your own question
Sign UpFind 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
 Engagement 19 Mad Hatter
 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.