2. The number of people in a
town n years after the initial
count can be modeled by
the equation p(n)=25,000(0.8)n
where P is the population
and n is the number of years.
b. Is this town growing or
shrinking in population?
By what percentage?
a. What was the population
at the initial count?
c. Write an expression to
predict what the population
will be in 5 years
Answers
Answer:
Step-by-step explanation:
25,000*0.8*n
25,000* 0.8= 20,000n
Therefore if the value of n is any number below 1 (including) then the population will decrease
If the value of n is any number above 1 (not including 1 specifically above 1.25 to show increase because 1.25* 20,000= 25,000) then it will show an increase with 1 it will just be 20,000 that being less then 25,000.
Answer:
-Population at the initial count: 25,000
-Is it increasing or decreasing: It depends on the value of n (explained above)
-By what percent: 80%
-Expression for 5 years: 25,000*0.8*5
- 25,000*0.8*5= 100,000 people
Related Questions
Explain the process of solving inequality with variables on both sides. Show an example.
Answers
Answer:
Inequalities work exactly like equations with one exception. The process begins just like equations: first, do the opposite of what you see, then do the same thing on the other side of the sign. At the last step of solving an inequality, if you multiply or divide by a negative number, then you reverse the sign
The two examples show the process of solving inequality with variables on both sides are
3 + x > 3x - 6
3 - 4x < 2x + 8
The process is shown below.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal =
Greater than and equal=
We have,
Let us consider an inequality:
3 + x > 3x - 6 ____(1)
3 - 4x < 2x + 8 _____(2)
We will solve for x.
From (1),
3 + x > 3x - 6
Subtract 3 on both sides.
3 + x - 3 > 3x - 6 - 3
x > 3x - 9
Add 9 on both sides.
x + 9 > 3x - 9 + 9
x + 9 > 3x
Subtract x on both sides.
x + 9 - x > 3x - x
9 > 2x
Divide 2 on both sides.
9/2 > x
x < 9/2
This means that x must be less than 9/2.
From (2),
3 - 4x < 2x + 8
Subtract 3 on both sides.
3 - 4x - 3 < 2x + 8 - 3
- 4x < 2x + 5
Subtract -2x on both sides.
-4x - 2x < 2x + 5 - 2x
-6x < 5
Divide both sides by 6.
-x < 5/6
Since we can not keep a negative sign with x we will multiply a negative on both sides and flip the inequality.
- (-x) > -5/6
x > -5/6
Thus,
The two examples show the process of solving inequality with variables on both sides are:
3 + x > 3x - 6
= x < 9/2
3 - 4x < 2x + 8
= x > -5/6
Learn more about inequalities here:
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A team of divers is at an elevation of 250 below the surface of the water, or -250 ft. another team is directly above the first team at an elevation of -120 ft. What is the distance between the teams?
Answers
Answer:
The answer should be -130 feet.
Hope u get it right :)
PLZ HELP
What is the y-intercept of the line shown?
A) 4
B)0
C) -1/4
D)-4
Answers
Answer:
The answer would be B) (0,0) proportional
Step-by-step explanation:
The line crosses through the origin (0,0) making the y-intercept 0. Hope this helps
plz help I will give brainiest
Find three consecutive odd integers such that the sum of 7 times the smallest and twice the largest is -91.
Answers
will give BRAINLIEST BRAINLIEST BRAINLIEST to correct answer!!! pls help!!!!
Answers
Answer:
38.4 m
Step-by-step explanation:
First, you have to multiply all the sides' sum by 0.8, which is the same thing as 4/5.
Add all the sides. 16+12+20=48. 48*4/5=38.4
Hope this helps!
Answer:
38.4 m
First, you have to multiply all the sides' sum by 0.8, which is the same thing as 4/5.
Add all the sides. 16+12+20=48. 48*4/5=38.4
I need 10 brainliests so please give me 1.
Kenny reads 5/8 page in 2/3 minutes.
Im guessing your supposed to find how many pages he read??
Answers
Answer:
To get the answer you need to multiply 5/8 and 2/3 by the same number until they get a whole number. Then divied that by the number you divided it by and you got the answer.
Step-by-step explanation:
Answer:
The answer is 15/16 pages per min.
Step-by-step explanation:
5/8 * 3/2
You flip the second fraction when multiplying so it will be 15/16
Common denominator.
Write an EQUATION for the nth term of each arithmetic sequence
-1,-0.5,0,0.5,...
Answers
you are adding 0.5 each time
-1,-0.5,0,0.5,1,1.5,2,2.5
There are 8 sixth-grade classes and 195 sixth grade students at Edison Middle
school. The equation 8s = 195 can be used to determine s, the mean number of students per class. Based on the solution s = 24.375, which of the following statements could be true?
A. There are 5 sixth-grade classes with 24 students each and 3 sixth-grade classes with 25 students each.
B. There are 7 sixth-grade classes with 24 students each and 1 sixth grade class with 25
students.
C. There are 8 sixth-grade classes with 25 students each.
D. There are 8 sixth-grade classes with 24 students each
Answers
Answer:
D
Step-by-step explanation:
You just have to round the decimal
Help meh. TnT -sniffs- sorry..
Answers
Answer:
i think itll be cheaper to go to shop sum save i forgot the name my bad
Step-by-step explanation:
Answer:
Bob did by 10 cents
Step-by-step explanation:
9.75/3.75 is 2.6, 6.25/2.5 is 2.5
(7-3t) -5(-1.6t +5)
Find the difference!
Pls I need this before an hour!!!
Answers
Answer:
5t - 18
Step-by-step explanation:
(7 - 3t) - 5(-1.6t + 5)
First, we need to distribute the right side to get rid of the parentheses.
-5 * -1.6t = 8t
-5 * 5 = -25
8t - 25
Now, we have
(7 - 3t) + 8t - 25
We no longer need the parentheses on the left side.
7 - 3t + 8t - 25
Combine like terms.
-3t and 8t are like terms.
-3t + 8t = 8t - 3t
8t - 3t = 5t
7 and -25 are like terms.
7 - 25 = -18
5t - 18
Because 5t and -18 are NOT like terms, this is as far as we can simplify. So, we have our answer.
Please let me know if you have any further questions. I'm always happy to help!
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Moderator
Math Enthusiast
PLZ HELP ME
What linear equation is represented by the table?
y=2x
y=4x
y=2x-3
y=4x -3
Answers
What is the slope of the line.
Answers
Answer:
-3
Step-by-step explanation:
Rise/Run
12 (right)/ -4 (left)
= -3
Please help me in a hurry
Answers
Answer:
1049.05
Step-by-step explanation:
Answer:
1049.05
Step-by-step explanation:
Is the table above proportional or non-proportional?
Answers
Answer: I think you should divide them all and if you get the same answer it’s proportional if you don’t get the same answer it’s non-proportional
Step-by-step explanation:
Answer:
It is non-proportional.
Step-by-step explanation:
The table is non-proportional because it expresses a curved line instead of a straight line.
Pls help!!!! I’ll do anything and a brainlist!! This is worth 17 points pls help!
Answers
(03.04 MC) EXPLAIN!!!
Solve for x:
(-3/2)x - 9 = -27
Select one:
a. −24
b. −12
c. 11
d. 12
Answers
This is what the equation looks like: [tex]\frac{-3}{2}x - 9 = -27[/tex]
First, we transpose the terms to the other side. So after transposing [tex]-9[/tex], you get: [tex]\frac{-3}{2}x = -27 + 9[/tex]
Add them and you get: [tex]\frac{-3}{2}x = -18[/tex]
Next we transpose the coefficient of [tex]x[/tex] which is [tex]\frac{-3}{2}[/tex] to the other side, and while doing so the operation changes to a division. When dividing rational numbers, you take the reciprocal so you get: [tex]x = -18 * \frac{-2}{3}[/tex]
Multiply them and you get: [tex]x = 12[/tex]
Therefore, Option D is the correct answer :D
Which expressions have a positive product? Select all that apply.
A
(-5)(4)(-2)
B
-(-5)(-2)
C
(5)(-4)(2)(-5)
D
(4)(-2)
E
-(-5)(4)(-2)(-5)
Answers
Answer:
A:=40
C:=200
E:=200
Step-by-step explanation:
if x is 8687 then what y in the equation x+y=9787
Answers
Explanation
9,787-8,687=1,100
8,687+1,100=9,787
Hope this helps
Answer: Yes
Step-by-step explanation:
X + Y = 9787
8687 + Y = 9787
-8687 = -8687
Y = 1100
The scatter plot shows the number of days that several homes have been for sale co.pared to the number of times the house has been viewed.
Answers
Answer:
It would be the scattered pot - how many
Step-by-step explanation:
The height of a stack of DVD cases is in a proportional relationship to the number of cases in the stack. A stack of 6 cases and its height are shown. The height of 6 DVD cases is 66 mm. Find the constant of proportionality. Then use the constant of proportionality to find the height of a stack of 14 cases.
Answers
Answer:
The answer is 11 becasue 66 divided by 6 equals 11
Step-by-step explanation:
Hope this helped
(03.04 LC) EXPLAIN!!!!!!
The sum of two numbers is 52. The greater number is 4 more than the smaller number. Which equation can be used to solve for the smaller number? (5 points)
Select one:
a. x − (x + 4) = 52
b. x + (x + 4) = 52
c. x(x + 4) = 52
d. x(x − 4) = 52
Answers
Because if it were C or D it would be the product and not the sum
if the smaller number is 4 more it can be represented as x+4 and then you add x to the greater number to get 52 which is why the equation is x+(x+4)=52
Solve for a.
12494a-194879=1928777
Answers
Answer:
169.974068
Step-by-step explanation:
12494a-194879=1928777
+194879= +194879
12494a = 2123656
÷ 12494 = ÷ 12494
a = 169.974068
Explanation:
Which of the following numbers does not round to the same number as the others? 5one-fifth, 4Start Fraction 5 over 6 End Fraction, 5start fraction 6 over 7 end fraction, 4start fraction 11 over 12 end fraction
Answers
Answer:
It increases
Step-by-step explanation:
(5/x) + 5
As x decreases, 5/x increases. So the expression increases.
Answer:
It increases
Step-by-step explanation:
sry for my last awser ive been reseachering it and finally got a awser. lol
A) 10ft
B) 20ft
C) 25ft
D) 30ft
HELP ME PLEASEEE
Answers
Answer:
C) 25ft
Step-by-step explanation:
What is the value of the expression when a = 4 and b = 3?
4a+b−5
A. 2
B. 6
C. 7
D. 14
Answers
Answer:
D. 14
Step-by-step explanation:
4*4=16 16+3=19 19-5=14
Sara and Ben make a playlist for a road trip. Each chooses 5 songs for the playlist, and they order the song so that no two consecutive songs were to the list by the same person. How many such song arrangements are possible for their playlist, assuming that no is repeated?
Answers
Answer:
they should have up to ten peple
Step-by-step explanation:
The number of ways in which the song arrangements are possible for Sara and Ben's playlist, assuming that no song is repeated is 3,628,800.
What is a factorial?The product of a whole number 'n' with every whole number until 1 is called the factorial. The factorial of 4 is, for example, 43221, which equals 24.
Given that Sara and Ben, Each choose 5 songs for the playlist. Therefore, the total number of songs is 10. Also, songs are needed to be arranged so that none of them repeats. Therefore, the number of ways these 10 songs can be arranged is,
The number of ways = 10!
= 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1
= 3,628,800
Therefore, the number of ways in which the song arrangements are possible for Sara and Ben's playlist, assuming that no song is repeated is 3,628,800.
Learn more about Factorial:
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LEIM deposits some money in an account which pays 5% simple interest per year, and twice that amount in an account paying 4% simple interest per year. If he collects $533.00 in interest after one year, how much did he deposit in the account that has a 5% rate?
Answers
Answer:
266.5
Step-by-step explanation:
$533.00* 5%=266.5
Look at the math picture and answer the question correctly.
Answers
Which of the fallowing best describes the profit Emily makes from selling these cards?
Answers
Answer: C
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
10 per box = more money
Which expression is not equivalent to 12x + 18y?
Question 2 options:
6(2x) + 18y
6(2x + 3y)
6x + 9y + 6x + 9y
3(4x + 18y)
Answers
Answer:
the last one 3(4x+18y)
Explanation: 3•4x = 12x , 3•18y = 54y . Which would make it 12x+54y
