A town has a population of 5000 and grows at 3.5% every year. To the nearest tenth of a year, how long will it be until the population will reach 7300?

Answers

Answer 1

Answer:

Step-by-step explanation:

This is an exponential function. In order to find the answer to the question, we need to first determine what the equation is that models this information. The standard form for an exponential function is

where a is the initial value and b is the growth/decay rate. If the starting population is 5000, then

a = 5000

If the population is growing, that means that it retains 100% of the initial population and is added to by another 3.5%. So in a sense the population grows 100% + 3.5% = 103.5% or, in decimal form, 1.035. So

b = 1.035

Our function is

where y is the ending population and x is the number of years it takes to get to that ending population. We want to know how long, x, it will be til the population reaches 7300, y.

and we need to solve for x. The only way to do that is by using logs. I'll use natural logs for this.

Begin by dividing both sides by 5000 to get

and take the natural log of both sides:

The power rule for natural logs is that we can now bring the exponent down in front of the ln to get:

To solve for x, we now divide both sides by ln(1.035):

Do that division on your calculator and get that

x = 11.0 years.

That means that 11 years after the population was 5000 it will be expected to reach 7300 (as long as the growth rate remains 3.5%)


Related Questions

QUICK I NEED THIS ANSWER QUICKLY

Answers

It’s A. The first option. Also pls brainlist

What principle will amount to $6000 if invested at 5.5% compounded monthly for 10 years?

Answers

Answer:In 10 years, you will have $10,386.46

Step-by-step explanation:

a recipe calls for 3/4 of a cup of flour to make 5/8 of a pond of bread dough . how many cups of flour are needed to make 1 pound of douugh

Answers

6/5 cup

Thank you hope this helps

Make t the subject of the formula p = 4t+1/2-t​

Answers

Answer:

t = (p - 1/2)/3

Step-by-step explanation:

p = 4t + 1/2 - t​

combine like terms:

p = 3t + 1/2

subtract 1/2 from each side of the equation:

3t = p - 1/2

divide both sides by 3:

t = (p - 1/2)/3

A box contains 2 3/4
pounds of apples. Sage uses 1/5
of the box of apples.

How many pounds of apples does Sage use?

Answers

Answer:

.55 or 11/20

Step-by-step explanation:

multiply 2 3/4 by 1/5 to get the pounds of apples Sage uses.

Sage uses 11/20 of a pound of apples or approximately 0.55 pounds of apples.

What is a mixed expression?

A fraction with a mixed expression, also known as a complex fraction, has a fraction in either the numerator, the denominator, or both.

The box contains 2³/₄  pounds of apples, which can be written as a mixed number or an improper fraction:

2³/₄ = (2 × 4 + 3)/4 = 11/4

To find out how many pounds of apples Sage uses, we need to multiply the amount in the box by the fraction that represents the proportion of the box that Sage uses, which is 1/5:

(1/5) × (11/4) = (1 × 11)/(5 × 4) = 11/20

Therefore, Sage uses 11/20 of a pound of apples or approximately 0.55 pounds of apples.

To know more about mixed expressions follow

https://brainly.com/question/28833168
#SPJ3

The graph of the function y=f(x)+35 can be obtained from the graph of y=f(x) by one of the following actions:

Answers

I’m pretty sure it’s the second one if not I’m so sorry

Help! for brainiest and thanks! + 5 stars VOLUME
please respond with the solution and reasoning if possible!

Answers

Answer:

the  volume of the rectangular prism is 448.5 in^3

Step-by-step explanation:

The computation of the volume of the rectangular prism is shown below:

As we know that

The  volume of the rectangular prism is

= 7.8 × 11.5 × 5

= 448.5 in^3

It is basically multiplied with the height, width and the length

Hence, the  volume of the rectangular prism is 448.5 in^3

Ten years ago, the average amount of time a family spent eating supper together was 27.8 minutes. A sociologist believes this average has decreased. She randomly selects a sample of 12 families and finds the sample average to be 24.307 minutes. The sample data look about bell-shaped. She calculated a test statistic of t

Answers

What r the questions

Write the expanded form in the condensed form.
9z+9z

Answers

Answer:

nine z plus nine z.

lol tell me.if.its wrong

Use the information in the table to choose the correct equation.

Answers

It’s x+10. They add 10 to books each round

Answer:

y = 10x + 3

Step-by-step explanation:

Find the mean of the
data set:
14, 19, 13, 22,7

Answers

Answer:

Add up all the numbers and divide it by how many numbers there are.

14+19+13+22+7=75

75÷5 =15

Caroline is making cookies for a large fundraiser taking place in two days. Her recipe says it
makes 24 cookies, but she needs to make 60 cookies. The recipe consists of the following
ingredients: 1 cup flour; 2/3 cup powdered sugar; 1/2 cup cornstarch; and 3/4 cup butter. How
should she go about increasing the recipe to make 60 cookies? What is the measurements
needed to make 60 cookies?

Answers

Step-by-step explanation:

you need to double the recipe and add 1/2, because doubling gets you 48 and adding 1/2 gets you to 60 cookies.

rather than the given recipe, multiply the numbers by 2.5 (double and a half): 2.5c flour

1 2/3 c powdered sugar

1 1/2 c cornstarch

1 7/8 c butter

hope this helps!

Is 12+5(2+y) and 5y+22 equivalent

Answers

Answer:

22 + 5y

Step-by-step explanation:

Yes they are

5 x 2 = 10 + 5 x y = 5y, 10 + 12 = 22, therefore you get 22 + 5y.

Information collected from runner 3# is in the table below

The constant proportionality for runner 3 is..?

Answers

Answer:

the constant of proportionality would be 9

Write the absolute value equation if it has the following solutions. x = 2.5 and x = -3.5

Answers

Answer:

where's the equation? your question is missing some parts.

Step-by-step explanation:

jane saved $20 from her $60 allowance. june saved $15 from her $50 allowance. who saved a greater proportion of her allowance

Answers

Answer:

Jane

Step-by-step explanation:

Jane saved 33.333%

While

june saved 30%

For every 9 pages I read I took 1.5 pages of notes, if I read 28 pages, how many pages of notes will I have taken?

Answers

Answer:

168 pages of notes

Step-by-step explanation:

9 divided by 1.5= 6

so 28x6= 168

Mr. Tough can grade the final exams in 12 hours. His assistant, Ms. Nice, can grade the same exams in 15 hours. What fraction of the exams can Mr. Tough grade in 1 hour, without any help? This is impossible. Please help me. I spent sooo loong on this and got it wrong. I don't have many points. Sorry about the 20 points. IT IS VERY URGENT!!!!!!!!!!!!!!!!!

Answers

Answer:

1/12

Step-by-step explanation:

if Mr.Tough can grade 1 in 12 hours he can do 1/12

The fraction of the exams that Mr Tough and Mrs Nice grade in 1 hour if they work together is 3/20

What are fractions?

A fraction is used to denote a portion or component of a whole. Numerator and denominator are the two components that make up a fraction. There are three types of fractions: proper, incorrect, and mixed.

Using, rate × time = work done

So, Mr Tough's rate:

Mr Tough's rate × 12 hours = final exam

Mr Tough's rate = 1/12

and, Mrs. Nice's' rate:

Mrs .Nice's' rate × 15 hours = final exam

Mrs .Nice's' rate = 1/15

So, Total time:

T(1/12 hours + 1/15 hours) = final exam

T =  final exam / (1/12 + 1/15)

T =  final exam / (0.15)

Now, 1 hour =  final exam / (0.15)

final exam = 1 × 0.15

                = 0.15

                = 15/ 100

                = 3/20

Therefore, 3/20 fraction of the final exam.

Learn more about work, time and rate here:

brainly.com/question/23849623

#SPJ2

One year, the population of a city was 330,000. Several years later
it was 270,600. Find the percent decrease.

Answers

Answer:

18% Decrease.

Step-by-step explanation:

You can use this formula for % decrease questions. :)

Decrease= Starting value (original) - Final Value (the smaller number) / starting value x 100.

Hope this helps,

Azumayay

Help fast please.....

Answers

Answer:

nos etu  mdei

Step-by-step explanation:

Answer:

33in squared, so B

Step-by-step explanation:

the area of a triangle is (Base x height)/2

The area of a square is just length x width

Now solve

since each triangle is the same and there a 4 triangles do

4(3x4) which is 4(12)

4 x 12= 48

48/2= 24

3 x 3 for the square

24+9=33

Hope this helps!

2 × 3² - 5² = ???????????????????????????????????????????????????????????????????????????????

Answers

Answer:

I think its -7

Step-by-step explanation:

djjdjejjd

Answer:

-7 is your answer

Step-by-step explanation:

2 × 3² - 5²=18-25=-7

Here's a challenge.... solve for this ​

Answers

I'm very bad in geometry. Sorry mom I failed geometry .

what is 5m-4-m+2 simplify​

Answers

Step-by-step explanation:

5m-4-m+2

Simplifying

4m - 2

Hope it helps :)❤

Answer: 4m - 2

Steps:
5m - 4 - m + 2
COMBINE LIKE TERMS
4m - 4 + 2
4m - 2

I would appreciate brainliest if this was correct and helpful! :)

Two functions are shown below.
f(x) = 2x
g(x) = x2 + 3x - 3
For what values of x is f(x) > g(x)?

Answers

Answer:

q

hey g(x) = x2 + 3x - 3

Step-by-step explanation:

es la respuesta

hello i hope you are having a nice day can somebody help me with this question thanks

Answers

I have a little rhyme for you to remember how to calculate the area of a trapezium:

Half the sum of the parallel lines,
Times the distance between them,
That is how you work out,
The area of a trapezium!

Ok, now apply the rhyme to the question!

1) Half the sum of the parallel lines - (7.5+2.5) / 2 = 5
2) Times the distance between them - 5 x 2.5 =12.5

The answer is 12.5

Answer:

12.25 un

Step-by-step explanation:

-the formula for the area of a triangle is A=(1/2)bh or Area=(1/2)×Base×Height

to find the base you need to take 7.5 and subtract 2.5 the divide in half for each base of the triangles to get 2.5 for the bases.

then take your formula and multiply:

0.5×2.5×2.5=3.125×2=6.25 and you get the area of the triangles.

then do the area of the center square which is:

2.5×2.5=6 for the center

then add:

A=6.25+6=12.25

Write an expression that is equivalent to -0.5(14a-22)

-0.5(14a-22) = _?_a+_?_

Answers

Answer:

- 7a + 11

Step-by-step explanation:

-0.5(14a - 22) = -0.5(14a) + (-0.5)(-22) = - 7a + 11

The blanks are -7 and 11

Answer:

-7 and 11

Step-by-step explanation:

2. For what value of p would the statement 5p = 30 be true?
Op=7
O p = 5
O p = 4
Op=6



is the following statement true false or open: 60 - g = 25
true
false
open
none of the above


which of the following an an open statement
2x + 5x = 7x
14 ÷ 2 = 7
3 + 10 = 13
3x = 12



PLEASE REAL ANSWERS I RLLY NEED HELP!!!!

Answers

Answer:

1. p=6

2. open

3. 3x = 12

Help me please (NO LINKS )

Answers

Answer:

Hey! Finally found a question of yours!

Step-by-step explanation:

1. A=9

2. A=12

3. A=21

4. A=15

5. A=7

6. A=5

7. A=20.8

8. A=48

9. A=0.25

50 points question to answer​

Answers

Answer:

Hope it helps

Step-by-step explanation:

3/4(7/7)=21/28

1/2(8/8)=8/16

4/9(2/2)=8/18

2/5(9/9)=18/45

6/3(6/6)=36/18

3/2(7/7)=21/14

PLS RATE AS BRAINLIEST

Can someone help me? I’ll reward points + brainalist

Answers

Answer: Question 10 is c

Question 11 is c

Step-by-step explanation: Area of a circle is πr^2 so we know what the radius r is, it is 9.5 so we plug it in π(9.5)^2

Question 11 To get the radius from the diameter we need to know the half of the diameter which is 21=r

So we plug in 2πr is the equation for the circumference 2π(21) which then would be c

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