Hello!
The equation for an exponential deprecation model like this is 
, where a is the starting value, x is the number of years passed, and r is the amount the value deprecates each year.
We know what a and r are: a = 1600, as that is the original cost of the computer, and r = .18, as that's how much it decreases by. Substitute these two into the equation.
We get 
. Now, subtract 1 - .18 to get our final answer.
is therefore the final model.
Hope this helps!
28+x=
200
or any other way you can think of
Answer:
D $147.00
Step-by-step explanation:
$2100.00×7%
Answer:
The first one
Step-by-step explanation:
Since only the first session is $10, it wouldn't be 10x.
The second session is $5, and it will never be $10 again, so $5 sessions are unlimited which would be 5x.
So the answer is y = 10 + 5x
(sorry if i didnt explain well)
