Answer:
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Step-by-step explanation:
(50/4) + (6/4) is the answer that you are looking for. All you do is break up the number that you are going to divide into easy-to-divide numbers.
We will have the following:
First, we construct the exponential decay function, that is:
Now, we will determine the population after 6 years:
So, the population after 6 years will be of approximately 37491 people-
For the first one, I will solve for t.
s + 2t = 6, first we isolate the t variable,
2t = -s + 6, divide both sides by 2,
t = -s/2 + 3, < There's your answer for 1!
Here's the second one,
3s - 2t = 2, subtract 3s from both sides,
-2t = 2 - 3s, divide both sides by -2,
t = -1 + 3s/2 < There's your second answer!
Answer:
after 3 half lives the amount should be reduced to 19.375g
Step-by-step explanation:
after the first half life , amount left =
155÷2
= 77.5g
2nd half life
77.5÷2
=38.75g
3rd Half life
38.75÷2
=19.375g
