A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
The amount of radioactive substance y that remains after t years is given by the equation y=ae^kt, where a is the initial amount present and k is the decay constant for the radioactive substance. If a = 100, y=50, and k=0.035, find t
so far i have...
50=100e^0.035(t), then what?
anonymous
 5 years ago
The amount of radioactive substance y that remains after t years is given by the equation y=ae^kt, where a is the initial amount present and k is the decay constant for the radioactive substance. If a = 100, y=50, and k=0.035, find t so far i have... 50=100e^0.035(t), then what?

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You set it up correctly, now just have to solve. Start by dividing both sides by 100.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes. Now you need to get the t by itself. Think inverse of the e function...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i'm sorry i really have no idea. I get everything in the classroom and then when i get home and doing homework i get so lost.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok ln is the inverse of e. So if we take the ln of both sides we get ln(.5)=.035t sorry for a later response...
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.