Mathematics Middle School

In the past you paid $800
per month to rent your apartment. You now pay $900
per month for your rent. What is the percent increase in your rent?

Answers

Answer 1
Hello! $800 was the past amount for rent and now it's $900. 900 - 800 is 100. that's a $100 difference. In order to find the percent increase in the rent, we can write and sovle a proportion. It would be set up as change/original = x/100, where change is difference between two numbers and original is the previous price. It would be set up like this:

100/800 = x/100

Let's crossmultiply the values. 100 * 100 is 10,000. 800 * x is 800x. That makes 10,000 = 800x. Now, divide each side by 800 to isolate the x. 800x/800 cancels out. 10,000/800 is 12.5 or 12.5%. Let's check this by multiplying by 112.5%. 800 * 112.5% (1.125) is 900. That's what we're looking for! There. x = 12.5%. The percent increase is 12.5%.


Answer 2
900-800=100.. 100/800=.125 . 125x100=12.5%

Related Questions

Jake bought the pizza shown above for lunch, which was cut into four equal slices. What percentage of the pizza did Jake eat if he had three slices?
A) 25%
B) 50%
C) 67%
D) 75%
the pic is below

Answers

He ate 75% because 3/4=75%.

Hope this helped☺☺
if he ate 3 slices, he ate 75% and has 25% left.

If he still has 3 slices left, he ate 25% and has 75% left

Hope I helped!

Let me know if you need anything else!

~ Zoe

Can someone help me with this question?

Answers

To find out whether n = 112 is a solution to the inequality, plug 112 for n into the inequality and simplify.

10 + n/28 > 14
10 + 112/28 > 14
10 + 4 > 14
14 > 14

This reads "fourteen is greater than fourteen," which is false.

n = 112 is NOT a solution to the inequality 10 + n/28 > 14.
Hey there! :D

So, 10+112/28=14 
So 14 > 14
It's not true.
So it is NO.
Hoping this helps you!

Have a good day my friend!!:D
My pleasure :)

Jerome made P points in the game . Harold made 11 fewer points than Jerome . How many points did Harold make in the games in terms of P!!!!!!!!!!!

Answers

Harold = P - 11 

This is the answer
The correct answer is that Harold has p-11 points!

Part 1!

I REALLY, REALLY NEED HELP ON THIS QUESTION!!!!!!!! 50 POINTS!!!!!!!!! WILL GIVE THE BRAINLIEST TO CORRECT ANSWER!!!!!!!!!!!!! nth term
__________________________________________________________________________________________
Look at the picture!

*******If you don't answer with correct answers or give something absurd or don't give enough details, your answer WILL BE REPORTED AND DELETED AND YOU WILL LOSE THE POINTS FOR THIS QUESTION!!!!!

Answers

1.  We have to find the fifth term of f(n) = 7 - 4(n - 1). 
That means x = 5. Substitute 5 into the equation for x. 
f(n) = 7 - 4(5 - 1) 
Subtract 5 - 1. 
f(n) = 7 - 4(4) 
Multiply 4 by 4. 
f(n) = 7 - 16 
Subtract 16 from 7. 
f(n) = -9 
The answer is D. 

2. Since we have to find the first 4 terms, we have to solve for x = 1, 2, 3, & 4. 
Multiply 1, 2, 3, and 4 by 6. We now have: 
f(x) = 6 - 25   f(x) = 12 - 25   f(x) = 18 - 25   f(x) = 24 - 25 
Subtract 25 from the first term: 6, 12, 18, and 24. 
f(x) = -19   f(x) = -13   f(x) = -7   f(x) = -1 
The answer is C. 

3. Now, we have to find the first 3 terms of f(x) = 10(2)^x.  So x is 1, 2, & 3. 
Raise 2 to the powers of 1, 2, and 3. The equations are now: 
f(x) = 10(2)   f(x) = 10(4)   f(x) = 10(8) 
Then multiply 10 by the three terms: 2, 4, and 8. 
f(x) = 20   f(x) = 40   f(x) = 80 
The answer is A. 

4. Find the 21st term of f(n) = 2 + 9(n - 1). Substitute 21 for n. 
f(n) = 2 + 9(21 - 1) 
Subtract 1 from 21. 
f(n) = 2 + 9(20) 
Multiply 9 by 20. 
f(n) = 2 + 180
Add 2 to 180. 
f(n) = 182 
The answer is B. 

5. Which sequence is described by f(n) = 2(3)^x-5. 
This is the only one which I'm not sure how to solve. Since I don't know, I won't answer it because I don't want to give you the wrong answer to the question, sorry about that. 

6. The ninth term in f(n) = 384(1/2)^n-1. Put 9 in for n & subtract 1 from 9. 
f(n) = 384(1/2)^8 
Raise 1/2 to the power of 8.
f(n) = 384(1/256) 
Multiply 1/256 by 384. 
f(n) = 384/256 
Reduce the fraction & make it a mixed number. 
f(n) = 1 1/2 

Hope this helped!

Answer:

thats harsh I`m sure you can afford to miss a few questions just be glad he helped you and if you cant the you should have studied harder

Step-by-step explanation:

Sally decided to look at new and used vans. Sally found a used van for $14000. A new van is $20000, so what percent of the price of a new van does Sally pay for a used van?

Answers

Final answer:

Sally pays 70% of the price of a new van for a used van, which is calculated by dividing the price of the used van by the price of the new van and multiplying by 100.

Explanation:

To determine what percent of the price of a new van Sally pays for a used van, we use the formula for percentage: (Part / Whole) × 100. In this case, the price of the used van ($14,000) is the part, and the price of the new van ($20,000) is the whole. Hence, the calculation will be ($14,000 / $20,000) × 100.

Performing the calculation, we get: (14,000 / 20,000) × 100 = 0.7 × 100 = 70%.

Therefore, Sally pays 70% of the price of a new van for a used van.

If a horses man grows 6/5 per month, how long will it take to grow 24/10 cm

Answers

6/5x = 24/10x = (24/10) / (6/5)x = 24/10 * 5/6x = 120/60 reduces to 2 months
Explanation :the horses mane grows 6/5 cm per month lets let x = number of monthsit is going to grow 24/10 in x months
so 6/5x (6/5 times the number of months) = 24/10divide both sides by 6/5, eliminating the 6/5 on the left side.so x = (24/10) / (6/5)...and when dividing fractions, u flip what u r dividing by, and multiply. 24/10 * 5/6 = 120/60 which reduces to 2 months. is the correct answer!

What’s equivalent to 4/7 X 5/9? 5/9X4/7, 4/7 X 5/9, 4/9 X 5/7, 4/7 X 9/5 X=times

Answers

The second option is the correct answer 4/7 X 5/9
Each option is correct except for the last one.

♡´･ᴗ･`♡вяαιиℓιєѕт ρℓєαѕє♡´･ᴗ･`♡

A mobile phone carrier charges an extra fee if a customer uses more than 500 minutes each month. Tom has already used 230 minutes this month. Which inequality can be used to determine how many more minutes Tom can use this month without going over the 500-minute limit?

Answers

The answer is x + 230 ≤ 500

Answer:

x + 230 ≤ 500

Step-by-step explanation:

Given,

The time for which Tom used the phone = 230 minutes,

Let he further used the mobile for x minutes,

So, the total time for which he used the phone = ( x + 230 ) minutes,

According to the question,

For the extra minutes more than 500 minutes, the mobile phone carrier charges an extra fee,

Thus, if he wants to use the phone, without going over the 500-minute limit,

Then, the total time used by him ≤ 500 minutes,

⇒ x + 230 ≤ 500

Which is the required inequality.

Community center has an L shaped swimming pool that is 10 feet deep. What is the volume of the pool

1200

1040

640

880

Answers

volume = width * length * height
In order to find this split the pool into two separate rectangular prisms.
The first one's measurements are 4ftx16ftx10ft
4*16*10 = 640
the next prism is 4ftx10ftx10ft
4*10*10 = 400
640+400= 1040 cubic feet
Answer:

The total volume of pool is:

                      1040 cubic ft.

Step-by-step explanation:

We know that the total volume of the pool is the sum of the volume of two rectangular prism.

one is a rectangular prism with dimensions 20ft.×10ft.×4ft.and the other rectangular prism has dimensions: 6ft.×4ft.×10ft.

Hence, the volume of first rectangular prism is:

                       20×10×4=800 cubic ft.

Volume of second rectangular prism is:

                      6×4×10=240 cubic ft.

Hence, total volume of pool is:

                 800+240=1040 cubic ft.

I think the answer is C but I’m not sure. Plz help me out

Answers

The answer is (c) hope it helps and have a great day!

two triangles are similar, and the ratio of the lengths of each pair of corresponding sides is 2:1. which statement regarding the two triangles is NOT True?

A- Their corresponding angles have a ratio of 2:!
B- Their areas have a ratio of 4:1
C- Their perimeters have a ratio of 2:!
D- Their altitudes have a ratio of 2:!

Answers

Answer: The correct answer is A - Their corresponding angles have a ratio of 2:1.

In the case of similar figures, we have the same basic shape however it is just make larger or smaller. Since this is the case, all of the angles will remain the same.

Imagine different sizes of stop signs. They are all similar and all the angles are the same. Only the lengths of the sides change.

All statements are true. Ratio of corresponding angles, areas, perimeters, and altitudes is 2:1. No false statement exists.

To determine which statement regarding the two triangles is NOT true, let's analyze each option step by step.

Given:

- Two triangles are similar.

- The ratio of the lengths of each pair of corresponding sides is 2:1.

Let's denote the lengths of corresponding sides in the first triangle as [tex]\( a \)[/tex], [tex]\( b \)[/tex], and [tex]\( c \)[/tex], and in the second triangle as [tex]\( 2a \)[/tex], [tex]\( 2b \)[/tex], and [tex]\( 2c \),[/tex] respectively.

A. Their corresponding angles have a ratio of 2:1.

- This statement is true because corresponding angles in similar triangles are congruent, so their ratios would indeed be 2:1.

B. Their areas have a ratio of 4:1.

- The area of a triangle is proportional to the square of the length of its sides. So if the ratio of the lengths of corresponding sides is 2:1, the ratio of their areas would be [tex]\( (2:1)^2 = 4:1 \)[/tex]. Hence, this statement is also true.

C. Their perimeters have a ratio of 2:1.

- The perimeters of triangles are directly proportional to the lengths of their sides. Since the ratio of the lengths of corresponding sides is 2:1, the ratio of their perimeters would indeed be 2:1. So, this statement is also true.

D. Their altitudes have a ratio of 2:1.

- The ratio of the altitudes of two similar triangles is equal to the ratio of their corresponding sides. So, if the ratio of corresponding sides is 2:1, the ratio of their altitudes would also be 2:1. Therefore, this statement is true.

Since all the statements are true, the correct answer is NONE.

The two-way table shows the number of students in a school who have rabbits and/or birds as pets:


Have Rabbits Do Not Have Rabbits Total
Have Birds 18 22 40
Do Not Have Birds 25 35 60
Total 43 57 100



How many more students have rabbits than birds?
3
7
22
25

Answers

Answer:

3

Step-by-step explanation:

There are a total of 18+22 = 40 people with birds.  There are a total of 18+25 = 43 people with rabbits.

This is a difference of 43-40 = 3 people.

There are 3 more students have rabbits than birds

What is Statistics?

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.

Have Rabbits      Do Not Have Rabbits       Total

Have Birds              18           22                        40

Do Not Have Birds 25          35                        60

Total                        43          57                       100

There are a total of 18+22 = 40 people with birds.  

So 40 people with birds.

There are a total of 18+25 = 43 people with rabbits.

So 43 people with rabbits.

This is a difference of 43-40 = 3 people.

Hence, there are 3  more students have rabbits than birds

To learn more on Statistics click:

https://brainly.com/question/30218856

#SPJ3

can someone please help me with this question

Answers

 since they are both negative just subtract the 2 numbers:

13.4 - 1.7 = 11.7 degrees warmer

*20 Pts* What are two fractions with different denominators that each have the LCD of 36?

Answers

You can use the fractions 3/18 and 5/12.

Hope this helps :)
you'd first need two numbers were you can only have them be multiples of 36 that cannot be reduced such as 1/1 and 1/36 or 1/18 and 1/12

what is the product? (x-5)(2x+3x-1)

Answers

I assume the first term of the trinomial is 2x^2, and you left out the exponent.

Multiply each term of the binomial by each term of the trinomial.
Then collect like terms.

[tex] (x - 5)(2x^2 + 3x - 1) = [/tex]

[tex] = x * 2x^2 + x * 3x + x * (-1) - 5 * 2x^2 - 5 * 3x - 5 * (-1) [/tex]

[tex] = 2x^3 + 3x^2 - x - 10x^2 - 15x + 5 [/tex]

[tex] = 2x^3 - 7x^2 - 16x + 5 [/tex]






Answer:

-18^x-45x on edge

Step-by-step explanation:

sorry if this is late just letting people know in the future

a rectangular deck has a area of 320 ft squared. the length of the desk is 4 feet longer than the width. find the dimensions of the desk. Solve by completing the square.

Answers

Because l•w= area, area= 320, l=w+4
width • (width +4)= 320

Distribute the multiplication over addition and move all to the left side.
w^2 +4w-320=0
(w-16)•(w+20)=0 yet, The product of two things is 0 if one is 0 or both are 0 so
w-16=0 so w=16 and
w+20=0 so w= -20

Now the width or length could not be negative so we discard the solution w=-20.

Answer
width= 16 inches
length =16+4=20

Verify
w•l=320
16•20=320✔️





How to make a box and whisker plot for 21,21,22,20,13,13,27,24

Answers

Hold up , I’m gonna draw it

What is -2(3x+12y-5-17x-16y+4) simplified?

Answers

28x + 8y + 2 is the simplified version.

Answer:

B. 28x + 8y + 2

Step-by-step explanation:

Express 5/8 as a percent. 62.5% 40% 58% 62% Express as a percent.

62.5%
40%
58%
62%

Answers

5/8 as a percentage is 62.5 

hope i helped :D
62.5% is your answer. 
divide 5 by 8 and you get 0.625. You will then move the decimal point two places to the right which will make it 62.5. 

What is the slope of a line that is parallel to y=5x+3

Answers

If a line is parallel to another line, the slope stays the same but the y intercept changes. For that line, 5 is the slope and 3 is the y intercept. So, 5 would be the slope for a line that is parallel to y=5x+3.
If a line is parallel to the line
[tex]y = 5x + 3[/tex]
the slope is equal to the slope of the line above. The slope of the line above is 5 (the number in front of the x represents the slope). Therefore the slope of a line that is parallel to the line above is 5.

how many times larger is 9x10(9) than 3x10 (-4)

Answers

Step-by-step explanation: Well you see here 9x10 isnt 9 its 90 and 3x10 isnt -4 its 30

The circumstance of a circle is 9pie cm. What is the diameter?

Answers

The diameter is 9.
Circumference=pi*diameter
9 pi/pi=9

Hope this helped☺☺
The diameter is 9 , this would help

Please help me with this



Simplify this expression:

3 2/3x-4/5(x-3 3/4)

Answers

(2 13/15) (x) + 3
I don’t think you need the parentheses

At 3 p.m., the outside temperature was 4 degrees F. The temperature then fell steadily by 2 degrees F every hour for the next four hours. What was the temperature at 7 p.m.?

Answers

-4 degrees Fahrenheit

Describe the composition of an atom.

Answers

Hi there,
Atom is made up of electrons,protrons and neutrons.
Nucleus is ,ade of protrons and neutrons which is located in centre of the atom and electrons revolve
around it in specific orbits.
Hope it helps.

The atom consists of a tiny nucleus surrounded by moving electrons. The nucleus contains protons, which have a positive charge equal in magnitude to the electron's negative charge.

Find the required annual interest rate to the tenth of a percent for $5200 to grow to $6500 if interest is compounded quarterly for five years

Answers

It must be invested at 4.5%.

The compound interest formula is

A=p(1+(r/n))^(nt), where A is the total amount including interest earned, p is the principal invested, r is the rate, n is the number of times per year the interest is compounded, and t is the number of years.

With our information we have:

6500=5200(1+(r/4))^(4×5)

6500=5200(1+(r/4))^20

Cancel 5200 by dividing:
6500/5200 = [5200(1+(r/4))^20]/5200
1.25=(1+(r/4))^20

Using a calculator, take the 20th root of each side:

1.25^(1/20) = [(1+(r/4))^20]^(1/20)
1.011219651 = 1+(r/4)

Subtract 1 from each side:
1.011219651-1 = 1+(r/4)-1
0.011219651=r/4

Multiply each side by 4:
0.011219651×4 = (r/4)×4
0.0448786 = r
0.045 = r

Final answer:

After rearranging the formula and solving for the interest rate, the required rate is found to be approximately 4.7%.

Explanation:

The subject of this question is finding the required annual interest rate that will grow a principal amount of $5,200 to $6,500 when compounded quarterly over five years. To solve this, we shall use the compound interest formula:

A = P(1 + r/n)^(nt)

Where:A is the amount of money accumulated after n years, including interest.

P is the principal amount (the initial amount of money).

r is the annual interest rate (decimal).

n is the number of times that interest is compounded per year.

t is the time the money is invested for, in years.

We are given:

A = $6,500

P = $5,200

n = 4 (since interest is compounded quarterly)

t = 5 years

We need to solve for r. First, we rearrange the formula to isolate r:

(1 + r/n) = (A/P)[tex]^({1/(nt))}[/tex]

Then we can insert our known values and solve for r:

(1 + r/4) = ($6,500/$5,200)^(1/(4*5))
Calculate the right-hand side:

(1 + r/4) = (1.25)[tex]^({1/20)}[/tex]
Find the 20th root of 1.25:

(1 + r/4) ≈ 1.01168
Subtract 1 from both sides:

r/4 ≈ 0.01168
Multiply both sides by 4:

r ≈ 0.04672

Convert the decimal to a percentage:
r ≈ 4.672%
Round to the nearest tenth of a percent:

r ≈ 4.7%
Therefore, the required annual interest rate to the tenth of a percent for $5200 to grow to $6500 with interest compounded quarterly for five years is approximately 4.7%.

What the answer to simplifying( 6 to the power of negative 2) by (3 to the power of negative 3) and (3•6) to the power of 4

Answers

6^-2 = 36. 3^-3 =-27. 3*6^4 = 3888

PLEASE HELP!!!!!


The vertex angle of an isosceles triangle is 40 degrees less than the sum of the measures of the base angles. Determine the measure of the vertex angle.

Answers

◆ Triangles ◆

Hey !!

Check the attachment.

Hence , the Vertex measures 70°
Hope it helps you :)
Let the base angles be x as both are equal in a isosceles triangle
Now, x+x+(x-40)=180. Since sum of angles of a triangle
2x+(2x-40)=180
2x+2x-40=180
4x=180+40
4x=220
x=220/4
x=55

Now,they asked us vertex angle which is 40 degrees less than sum of base angles
Therefore x+x-40=vertex angle
2x-40=vertex angle
2(55)-40=vertex angle
110-40=vertex angle
Vertex angle =70 degrees

find the circumference of a circle with an area of 530.93

Answers

A = π r^2
r^2 = A/π
r^2 = 530.93 / 3.14
r^2 = 169.08
    r = 13

C = 2 π r
C = 2 (3.14)(13)
C = 81.64

answer
81.64 m

puppys mass 4500 grams kittens is 450,000milligrams who has the greater mass

Answers

The puppy has greater mass: 450,000 milligrams = 450 grams, and 450<4,500
4500 grams is the option.
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