427.0 mm is more precise.
feel free to ask any questions
We have to use the function A(t)= a(1 +/- r)^t
So A is going to be the answer- the area after 8 years. t is going to be 8, because t is time. a is 2400 because that's the starting value. Finally, we're going to turn 5.75% into it's decimal form of .0575. That's going to be r, and because the area is decreasing, we will subtract r from 1.
Our new function is:
A=2400(1-.0575)^8
Simplify a little bit.
A=2400(.9425)^8
Bring .9425 to to power of 8 and then multiply by 2400 because PEDMAS.
A=1494.38366866
The rounded answer is 1494 kilometers squared.
Answer:
is the total time taken to clean the house.
Step-by-step explanation:
Given that:
Betsy cleans
of the house.
Time taken = 1 hour
To find:
Time taken to clean the whole house = ?
Solution:
We can use unitary method here to solve this problem.
We are given that
of the house is cleaned in 1 hour.
We have to find that a total of 1 house will be cleaned in how much time.
(1 house because Betsy's house can be considered as a single unit).
To find this we will divide 1 hour with
.
Now, Let us solve this mathematically:
of the house is cleaned in = 1 hour
1 of the house will be cleaned in = 1 hour divided by 

So, the <em>answer </em>is:
is the total time taken to clean the house.