Answer:
16 years.
Step-by-step explanation:
Please consider the complete question.
Assume that the suburb has a population of 686,000 and is growing at a rate of 4000 per year. Assume that the city has a population of 942,000 and is declining at a rate of 12000 per year. In how many years will the populations of the suburb and the city be equal?
Let x represent number of years.
Growth function would be 
and decline function would be 
.
To find the time when both populations will be equal, we will equate both functions as:
Therefore, in 16 years the populations of the suburb and the city will be equal.
Answer:
I think is B or A I don't know try putting both if you have more than 1 attempt
Step-by-step explanation:
Step-by-step explanation:
1.
1% of 500 is 5 so multiply 5 by 8 for one year. which is 40 so multiply that by 2.
1% of 500 = 5
5 × 8 = 40
40 × 2 = 80
2.
1% of 1000 = 10
10 × 5 = 50
50 × 3 = 150
3.
12 months = 6%
6/12 = 1 month
0.5 = 1 month
0.5 × 9 = 4.5 (the amount of interest for 9 months.)
800 × 4.5% = 36
4.
12 months = 7%
7/12 = 1 month ( i'll leave this in fraction form because of the decimal points.)
7/12 x 8 = 4.666667 or 4.7 rounded.
1200 × 4.7% = 56.40
Answer:
x = 13
Step-by-step explanation:
x = 13 ; y = -6
Double check
-6 + 2 = -4/5(13 - 8)
- 4 = -4/5 (5)
-4 = - 4
-4x = y + 3
y = -4x - 3
The second equation is solved for y.
We'll leave it like that.
Now we solve the first equation for y.
-4x = y + 3
-4x - 3 = y
y = -4x - 3
Write the new form of the first equation followed by the original second equation.
y = -4x - 3
y = -4x - 3
Before we get to the addition method, we see that both equations are the same.
The solution is every real number.
