(2x+4)+(4x+2)+(2x-1)=180
8x+5=180°
8x=180-5
8x=175
X=21.875
A= 2(21.875)+4=47.75
B=4(21.875)+2 =89.5
C=2(21.875)-1=42.75
Answer: 14
Step-by-step explanation:
Since they said find the mean
You are suppose to add up all the numbers then divide it by how many numbers are there.
the second statement explains which function shows a greater rate of change
Answer:
25
Step-by-step explanation:
The number that we are trying to discover was divided by 5, which gave you the number of 5. To find the original number multiply 5 by 5. I hope this helps.
So, here we have an exponential function.
Remember that an exponential function has the form:

Where a represents an initial amount, and r is the rate of this amount to change. (Increase, or decrease).
So, given that the population of City A in 2000 was 40 thousand people and the population increased by 13% each year, we can say that

So,

For city B:

But something different happens with city C. This is not an exponential function, this is a linear function.
So,
