Mathematics High School

In a city the population is increasing exponentially at a rate of 1.6% per year.
Find the overall percentage increase at the end of 20 years.​

Answers

Answer 1

Answer:

32% increase at the end of 20 years

Step-by-step explanation:

If the population increases at a rate of 1.6% per year, we should multiply it by the number of years that passed, which in this case, is 20. When we multiply those, we get 32%.

(hope this helped)

Related Questions

Can somebody plz help answer all the questions correctly thanks a lot !!!
(Only if u done it before)

WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD

Answers

Answer:

7. 250%

8. 400%

9. 667%

10. 769%

11. 263%

12. 125%

13. 137%

14. 526%

Step-by-step explanation:

divide the first number by the second number, then multiply that answer by 100

so kind of like: Number1 ÷ Number2 = x

then you do x × 100

and that's your answer

(all of my answers are rounded to the nearest percent)

Answer:

7) 40 Percent   8) 25 Percent   9) 25 Percent   10) 112 Percent

11) 38 Percent   12) 800 Percent   13) 73 Percent  14) 19 Percent

Step-by-step explanation:

I hope this helps :)

Answer Choices
A)neither Anne nor Tim
B)both Anne and Ti
C)only Anne
D)only Tim
WILL MAKE THE BRAINLIEST ANSWER IF RIGHT!!

Answers

Answer:

c) only Anne

Step-by-step explanation:

I just did the test. Hope this helps! : )

Tom is buying topsoil for the flower bed shown below. One bag of topsoil covers 151515 square meters. How many bags of topsoil does Tom need to cover his flower bed?

Answers

Answer:

2 bags of topsoil.

Step-by-step explanation:

The attached figure shows a flower bed.

One bag of topsoil covers 15 square meters.

We need to find how many bags of topsoil does Tom need to cover his flower bed.

The area of the flower bed is :

[tex]A=\dfrac{1}{2}\times 12\times 5\\\\=30\ m^2[/tex]  

Let he has to cover x bags of topsoil. So,

x = Area of flower bed/Area of 1 bag of top soil

x = 30/15

x = 2

Hence, he will need 2 bags of topsoil to cover his flower bed.

Which unit rate is equivalent to 13 miles per gallon? 1) 26 miles 2 galons 2) 2 gallons 26 miles 3) 39 miles 4 gallons 4) 4 gallons 4 39 miles please answer fast!​

Answers

Answer:

1)

Step-by-step explanation:

We just need to find a rate where the ratio of miles to gallons is 13:1

This only works for 1) 26 miles 2 gallons since 26/2 = 13/1

Answer:

I think it would be the first one. 26 miles 2 gallons

Step-by-step explanation:

Every gallon would be 13 miles. If you multiply 13 by 2 and 1 gallon by 2, you'll get 26 miles 2 gallons.

Pls help me ill mark brainliest and more

Answers

Answer: i believe its yes

Step-by-step explanation:

Answer:

B. Yes

Step-by-step explanation:

What is the slope and equation of a horizontal line ?

Answers

Answer:

Step-by-step explanation:

The equation of a horizontal line is y = b where b is the y-intercept. Since the slope of a horizontal line is 0, the general formula for the standard form equation, y = mx + b becomes y = 0x +b y = b. Also ,since the line is horizontal, every point on that line has the exact same y value. This y-value is therefore also the y-intercept.

Answer:

Horizontal lines have a slope of 0. Thus, in the slope-intercept equation y = mx + b, m = 0. The equation becomes y = b, where b is the y-coordinate of the y-intercept.

Step-by-step explanation:

Horizontal lines have a slope of 0. Thus, in the slope-intercept equation y = mx + b, m = 0. The equation becomes y = b, where b is the y-coordinate of the y-intercept.

Which is the constant of proportionality for the relationship shown in the graph?

PLEASE HELPP! Any help will be greatly appreciated

Answers

Step-by-step explanation:

The constant of proportionality is y / x = 4 / 2 = 8 / 4 = 2.

Answer:

The constant of proportionality is y / x = 4 / 2 = 8 / 4 = 2.

Step-by-step explanation:

Hope this helped have an amazing day!

Simplify the following expressions

a. 2/5- 1/6 b. 3/7-7/14 c. 5/8- 2/3

Answers

1.) 2/5-1/6
Multiply the denominator until both denominators are the same
12/30 - 5/30
Subtract the numerator but NOT the denominator
Final Answer: 7/30

2.) 3/7-7/14
Multiply the denominator until both denominators are the same common denominator
6/14 - 7/14
Subtract the numerator but NOT the denominator
Final Answer: -1/14

3.) 5/8-2/3
Multiply the denominator until both denominators are the same
15/24 - 16/24
Subtract the numerator but NOT the denominator
Final Answer: -1/24

plz help, look in the picture. Then i will add you to brainliest promise ​

Answers

Answer:

I think B or C

Step-by-step explanation:

I think B or C because it is the closest to 52.8.

Hope this helps you.

The answer is B

Because when you round 52.8 you would get 53 but because 53 isnt an option you would do 54 because 54 is closer to 53 than 50. Then you woukd divide because Alexandra is dividng the bags equally into 9 bags.

In the diagram below of rectangle RSTU, diagonals RT and SU intersect at 0.
RT = 6x + 4 and 50 = 7% -6, what is the length of US?
U
A) 8
x
B) 2
C) 16
R
D) 32

Answers

6x+4=2(7x-6)
6x+4=14x-12
16=8x
X=2

B) 2
I think it’s correct

Answer: 16

Step-by-step explanation:

EASY POINTS FOR Y'ALL

Answers

Answer:

A: Yes, because it passes the vertical line test.

Step-by-step explanation:

There are no repeating numbers of x, so therefore, it passes the vertical line test and it is a function.

Pic’n’mix sweets cost 56p per quarter. How much would 9 ounces cost? (There are 4 ounces in a quarter.)

Answers

Answer:

126p

Step-by-step explanation:

56 divided by 4 = 14p per ounce

14 x 9 = 126p per 9 oz.

Write a fraction that is equivalent to 3/4 with a denominator of 20

Answers

Answer:

15/20

Step-by-step explanation:

1. Take the denominator of 3/4 and multiply it by 5 because that is what it takes to get 20 from 4.

4 x 5 = 20.

2. Multiply the numerator by 5 as well.

15/20

Answer:

3 / 4 =  15 / 20

Step-by-step explanation:

I think thats right

Oakridge High School has been experiencing an annual
decline of 2.2% in enrollment since 1994. In 1994, 3000
students were enrolled. Determine the exponential
model that describes the school's enrollment over time.
y = 3000(97.8)^x
y = 3000(102.2)^x
y=3000(1.022)^x
Y= 3000(0.978)^x

Answers

Answer:

Option (D) is correct.

Step-by-step explanation:

We know that exponential decline in Math 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

y = a (1-b)ˣ

here

y represents the final amounta represents the original amountb represents the decay factorx represents the amount that has passed

Now, map our problem using the same concept formula

as

3000 students were enrolled, so

a = 3000

as High School has been experiencing an annual  decline of 2.2% in enrollment, so

b = 2.2%= 0.022

so substituting b = 0.022 and a = 3000

y = a (1-b)ˣ

y = 3000 (1 - 0.022)ˣ

as

1 - 0.022 = 0.978

so the expression becomes

y = 3000 (0.978)ˣ

Therefore, option (D) is correct.

Each week Josie's mother pays her an allowance to mow and water their front yard. Her mother pays her twice as much to mow the yard as she does to water the yard. She gets a total of $45.00 each week. How much does Josie's mother pay her to mow the front yard? Write an equation and solve the equation.

Answers

Answer: $30

Step-by-step explanation:

Let the amount paid to water the yard be represented by x.

Since her mother pays her twice as much to mow the yard as she does to water the yard. Therefore, the amount to mow the yard would be 2x.

Therefore,

2x + x = $45

3x = $45

x = $15

The amount to mow the front yard would be:

= $15 × 2

= $30

In the diagram below, triangle ABC is drawn with altitude BD. If AD = 30 and AC = 36, determine the length of AB rounded to the nearest tenth.​

Answers

9514 1404 393

Answer:

  32.9

Step-by-step explanation:

The ratio of long side to hypotenuse is the same for all of the triangles in the figure.

  AD/AB = AB/AC

  AB^2 = AD·AC = 30·36

  AB = 6√30 ≈ 32.863

To the nearest tenth, AB ≈ 32.9.

answer number 10 pls answer number 10 pls answer number 10 pls answer number 10 pls answer number 10 pls answer number 10 pls answer number 10 pls answer number 10 pls answer number 10 pls

Answers

Answer:

what's the question that your asking

where is the question ???

Which equation is equivalent to 9x+4y=16

Answers

Answer:

8x time 2x= 16

6x - 5 = 5x + 3
If you get it right you get brainest

Answers

Answer:

x = 8

Step-by-step explanation:

6x - 5 = 5x + 3

6x - 5x = 3 + 5 (combining like-terms)

x = 8

Hope this helps!

You have $550 in a savings account that earns 3% simple interest each year. How much will be in your account in 10 years? *

Answers

Answer:

$150

Step-by-step explanation:

3% of $500 is $15

$15 ×10 is $150

NEED HELP ASAP!!!!OFFERING BRAINIEST!!!

Answers

Answer:

4

Step-by-step explanation:

Given: x + 2 <-5.
Choose the solution set.
OXIXER,<-7)
OXIXERX <-3)
OxIXER X<3)
OXIXER X<7)

Answers

Answer:

The solution set is {x : x ∈ R, x < -7} ⇒ A

Step-by-step explanation:

The solution set of the inequality x > a is {x : x ∈ R, x > a}The solution set of the inequality x < a is {x : x ∈ R, x < a}The solution set of the inequality x ≥ a is {x : x ∈ R, x ≥ a}The solution set of the inequality x ≤ a is {x : x ∈ R, x ≤ a}

Let us solve the question

∵ x + 2 < -5

→ Subtract 2 from both sides of the inequality

∴ x + 2 - 2 < -5 - 2

∴ x + 0 < -7

∴ x < -7

→ By using the second rule above

∴ The solution set is {x : x ∈ R, x < -7}

what is my answer for this question?
1/3 + 1/4

Answers

Answer:

7 / 12 is the answer

hope this answer will help you

Answer: 7/12

Step by Step Explanation:
To add these together you have to make the denominator the same, so for this question I'm changing the denominator to 12; To turn 1/3 to ?/12 you need to do 12 divided by 3 which equals 4 so you do 1 x 4 so 1/3 is 4/12

For 1/4 you do 12 divided by 4 which is 3 so you times the numerator by 3; so it's 3/12, now you can add 4/12 and 3/12 which is 7/12.

How do you find the slope of a line in a graph?


Help me please

Answers

what graph? no info is selected in this....!


explaination: hm, think?

[tex]slope = \tan(angle \: made \: by \: \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: line \: with \: x \: axis) [/tex]

[tex]or \: [/tex]

[tex] = \frac{y1 - y2}{x1 - x1} [/tex]

Over 5 hours, a bakery uses 45 sticks of butter. How
many sticks of butter will the bakery use in 4 hours?
Solve using unit rates.

Answers

36 hours because 45/5 is 9 and 9x4 is 36

Answer:

36 sticks

Step-by-step explanation:

if they use 45 in 5 hours do 45÷5=9

9×4=36

find an equation of the line that is perpendicular to the line y=5x+6 and passes through the point (-2,5)
workings pls

Answers

Answer:

[tex]5y=-x+23\\[/tex]

Step-by-step explanation:

Since the equation of the line is perpendicular to the line y = 5x +6

we can use the formula:

[tex]m_1m_2=-1\\[/tex]

where m1 is the slope of the line we have and,

m2 is the slope of the line we need

so here m1 is 5 as we compare it with the slope-intercept form our slope is:

[tex]y=5x+6\\y=mx+b[/tex]

our m1 is 5 but we need m2 so plugging in the value we get m2 to be:

[tex]m_1m_2=-1\\5m_2=-1\\m_2=-1/5\\[/tex]

and now we have our m2, now furthermore since the line passes through the point (-2 , 5) it means the point must lie on the line and satisfy it. We can use this point and the slope m2 and find out the equation by the point-slope form equation:

[tex]y-y_1=m(x-x_1)\\y-5=-\frac{1}{5}(x-(-2))\\\\5(y-5)=(-1)(x+2)\\5y-25=-x-2\\5y=-x-2+25\\5y=-x+23\\[/tex]

Please help me ASAP before report cards thank you

Answers

item 1 is located ( -3,3.5)

its -3 because the dot is on -3 on the x axis

its 3.5 because its in the middle of 3 and 4 on the t axis

please help with al parts! I will give brainliest to smartest answer!

Answers

Answer:

A: 428.75/ 24.5 = $17.50 per sq foot

B: 62.50*24.50 = $1,531.25

C: 428.75 + 1,531.25 + 137.50 = $2,097.50 for the total replacement

Step-by-step explanation:

Write y2 in isolated
form.
19x2 + 4y2 = 25

Answers

y=(-19x+5)/4 thats your answer

4х – у = 5
3х + y = 9

Answers

I hope this is helpful
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