Answer: 55 minutes
Step-by-step explanation:
First, you would have to subtract 5 from 225 because there are already 5 monsters there.
225-5= 220
Next, you would have to divide 220 by 4 to find the amount of minutes.
220/4= 55
Answer:
66.5 square feet
Step-by-step explanation:
We have to find the area of the doghouse which is in the shape of right trapezoid . that is, Substitute the values, we get, Hence, Area of of the doghouse which is in the shape of right trapezoid is 66.5 square feet.
Answer:
not possible.
Step-by-step explanation:
number of invitations luanne has to address after x days = 120-15x
number of invitations Darius has to address after x days = 120 + 15(7-x)
so, if the number of invitations should be the same for both of them,
we have to equate their number of invitations
120-15x = 120 + 15(7-x)
subtracting 120 from both the sides,
-15x = 15(7-x) = 105 -15x
adding we 15x on both sides, we wont find any solution for x.
so, this isnt possible or the question must be wrong.
For this case we have the following function:
![A (t) = A0e ^ {(kt)} ](https://tex.z-dn.net/?f=A%20%28t%29%20%3D%20A0e%20%5E%20%7B%28kt%29%7D%0A)
Where,
A0: initial population
K: rate of change
t: time in years
Substituting values we have:
![A (t) = 22000 * e ^ {(- 0.021 * t)} ](https://tex.z-dn.net/?f=A%20%28t%29%20%3D%2022000%20%2A%20e%20%5E%20%7B%28-%200.021%20%2A%20t%29%7D%0A)
For the year 2015 we have:
Answer:
the predicted population in 2015 is:
19,807