Answer:
24 days
Step-by-step explanation:
120 students =30 days
120+30 =150 students
MORE/LESS METHOD
120 students (a) : 30 days(y)
150 students (b) : x
Find the value of x using the formula: a/b × y
If you think the value of x will be more than y then the bigger number will be the numerator. If u think x will be less, then the smaller number will be in the numerator.
I predict that x will be less than y
THEREFORE... 120/150 ×30
= 24 days
Answer:
1.5feet
Step-by-step explanation:
Answer:
The formula f(t) will be:
Step-by-step explanation:
We know that exponential decline in Maths can be termed as a consistent reduction of an amount by percentage over a certain period of time.
It can be expressed using the formula
![f\left(t\right)=\:a\:\left(1-b\right)^t](https://tex.z-dn.net/?f=f%5Cleft%28t%5Cright%29%3D%5C%3Aa%5C%3A%5Cleft%281-b%5Cright%29%5Et)
here
f(t) represents the final amount
a represents the original amount
b represents the decay factor
t represents the amount that has passed
Now, map our problem using the same concept formula
as
2150 members are at the beginning, so
a = 2150
as the size of the population has been experiencing an annual decline of 3.8%. so
b = 3.8%= 0.038
so substituting b = 0.038 and a = 2150
![P=f\left(t\right)=\:a\:\left(1-b\right)^t](https://tex.z-dn.net/?f=P%3Df%5Cleft%28t%5Cright%29%3D%5C%3Aa%5C%3A%5Cleft%281-b%5Cright%29%5Et)
![\:f\left(t\right)=2150\left(1-0.038\right)^t](https://tex.z-dn.net/?f=%5C%3Af%5Cleft%28t%5Cright%29%3D2150%5Cleft%281-0.038%5Cright%29%5Et)
![\:f\left(t\right)=2150\left(0.962\right)^t](https://tex.z-dn.net/?f=%5C%3Af%5Cleft%28t%5Cright%29%3D2150%5Cleft%280.962%5Cright%29%5Et)
Therefore, the formula f(t) will be:
Answer:
the answer will be 97cm
Step-by-step explanation:
10+3+3+33+33+15=97
Constants are the numbers with the letters by them so they would be -7x and -5y :)