Answer:
1/12
Step-by-step explanation:
I divided
The general way to work this out is to solve the general expression for
the remaining quantity versus half-life, using logarithms. But that's not
necessary with these numbers.
Look at the numbers:
-- 3 mg is 1/4 of 12 mg.
-- 1/4 is the product of (1/2) x (1/2).
-- So the 3 mg is what's left of 12 mg after 2 half-lives.
The 26 minutes must be two half-lives.
-- The half-life of that substance is 26/2 = <em>13 minutes</em>.
Go Maggie !
What do you need help with?
You reduce it to 1/6 because 6 goes into 6 once and 6 goes into 36 six times giving you 1/6
Hello I hope this helps. I'm pretty sure this is the answer.
Part A: C
Part B: A
