A rectangle has a perimeter of 30cm the width of the rectangle is n cm the length of the rectangle is n+6cm
What’s the value of n

A Rectangle Has A Perimeter Of 30cm The Width Of The Rectangle Is N Cm The Length Of The Rectangle Is

Answers

Answer 1

Step-by-step explanation:

p=2(l+w)

30cm=2(n+6+n)

30cm\2=2n+6

15cm-6=2n

9cm=2n

n=4.5cm or w=4.5cm

l=w+6

l=4.5cm+6

l=10.5cm


Related Questions

write in slope intercept form
through (4,-1), parallel to y=x

Answers

Answer:

y=x-5 is parallel to y=x

Step-by-step explanation:

how do yo do this question I have to
Solve the System by Substitution:

y = x-2
x + y = 4

Answers

x=4-y would be your answer

Edward plans to put $75 into a savings account. He can place his money into an account represented by b(x) = 7x + 75, or into another account represented by c(x) = 75(1.06)x. Which account has the highest value in 2 years? Which account has the highest in 12 years?

Answers

Answer:

the answer is the option B

b(x) has the highest value in  years; b(x) has the highest value in  years

Step-by-step explanation:

x------> the time in years

b(x)----> the value in dollars of a saving account

c(x)----> the value in dollars of another account

we know that

Step 1

Find the value of each account for

so

----> b(x) has the highest value in  years

Step 2

Find the value of each account for

so

----> b(x) has the highest value in  years

what is a prime number​

Answers

Answer:

Step-by-step explanation:

Prime number is

Answer: Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11. By contrast, numbers with more than 2 factors are call composite numbers.

Step-by-step explanation:

Can someone please help me with this? I’ll give Brainliest!

Note: Show how you got the answer

Answers

Prediction should be Kaitlyn, because she uses more flour per cookie (divide the amount of cups by how many cookies there are in each batch)

Solve for X. The triangles are similar

Answers

Answer:

Step-by-step explanation:

B

B. 9

Step-by-step explanation:

35-25=10

65+10=75 (8x+3=75)

8x+3=75

8x=72

x=72/8

x=9

1. What is the area of a circle with a a diameter of 20 cm in terms of pi?

2. What is the area of a circle with a radius of a 8 yd using 3.14 as pi?

3. The area of a circle in terms of pi is 49pi. What is the radius of the circle?

Help needed and it would be appreciated

Answers

Answer:

1. 100pi cm

2. 200.96 yd

3. 7

Step-by-step explanation:

1.) diameter = radius multiple by two (D = r × 2)

&

radius = diameter divided by two (r = D ÷ 2)

So

20 ÷ 2 = 10 => A = pi (10)power 2 => A = 100pi

---------------------------------------------------------------------------------------------

2.) 3.14 × (8)power2 =200.96

---------------------------------------------------------------------------------------------

3.) A = 49pi => 49pi = pi(r)power2

[ cross out the pi from both sides]

And your left with

49 = (r)power2

[square root both sides to get rid of the power]

And your left with

7 = r

Please help me if you can​

Answers

Answer:

7. [tex]r^{19}[/tex]

Step-by-step explanation:

r^11 x r^8 =

r^11 + 8=

2^19

R^19 is the answer to your question

Which statements are true about points A, B, and C? Check all that apply.
theres more then one answer.


The coordinates of point A are (3, –3).

The coordinates of point B are (1, –3).

The coordinates of point C are (–2, 2).

Point C is the closest to the y-axis.

Points A and B are the same distance from the x-axis.

Answers

Answer:

A B C are all correct yuhh

Step-by-step explanation:

Rectangle describe in your own words​

Answers

Answer:

A shape with four sides with two being longer than the other two?

Step-by-step explanation:

Answer:

A geometric shape with two sets of paralel lines joined by 4 vertexes.

Select the reason why these triangles are
similar. If they are not, select "Not similar".
A. AA
B. SAS
C. SSS
D. Not similar

Answers

Answer:

B. SAS

Step-by-step explanation:

In the given diagram, it would be observed that each side of the bigger triangle are multiplied by a factor of [tex]\frac{1}{3}[/tex] to give the values of each corresponding sides of the smaller triangle. But the included angle of the two triangles are the same.

Therefore, the reason why the triangles are similar is because of side-angle-side (SAS) relations. The correct option is B.

Answer:

SAS

Step-by-step explanation:

Just Because.

Janice paid $820 plus 7% sales tax for her airfare. How much did she pay in total for her airfare?

Answers

Answer:

877.40

Step-by-step explanation:

Are adjacent angles ever congruent?

Answers

Yes adjacent angles can be congruent

help me please I need help in math I suck and I need good grades

Answers

Answer:

The answer to the question provided is 60.

the answer is D ) 60 , you have to do 109-49 and u get 60 !!

Which system of linear equations appears to have a solution of (-1, 4)?
4ty
2
2
2
4

Answers

Answer:D

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

A solution is (-1,4) means that point of intercept is (-1,4)

<=> when x=-1 so y = 4 for both equations

From the 4 possible answers, only graph D meets the requirement.

Hope it will find you well

Answer:

Post a picture?

Which table represents the function y = 4x - 3?

Answers

Answer:

B

Step-by-step explanation:

Answer:

Second table (B)

Input: 0, 1, 2

Output: -3, 1, 5

Explanation:

Given the 2D linear equation y = 4x - 3,

y must represent the output because it is the dependent variable, so x must represent the input because it is a independent variable.

can you help me the first person will get brainliest

Answers

Answer:

put the equations in tiger math

Step-by-step explanation:

I can’t read it , nor see it ??

but other than that have a good day !! goodluck with everything

What is the slope of line P? And then what is the slope of line Q?

Answers

Slope of p = 3
Slope of q = -3
P= 3/1
Q= -3/1
Rise over run q is going to the left so it’s negative

solve the simultaneous equations
5x-2y=4
3x-6y=6

Answers

Hope this helps.
x=0.5
y=-3/4

5 12 14 will form a acute?
True or false

Answers

No it won't. it's false

cuz proofs here.

(5²)+(12²)= (169)

√(169) = 13

.. so if 13 was the number at 14

it would have been true.

currently the answer is false

Use the expression 14x + 28y + 21
(Answer both questions below)

Part A: What is the greatest common factor of the expression?

Part B: Factor the expression

Answers

Answer:

A) 7 is the greatest common factor of the expression.

B) factoring the expression [tex]14x + 28y + 21[/tex] we get [tex]\mathbf{7(2x+4y+3)}[/tex]

Step-by-step explanation:

We are given the expression: [tex]14x + 28y + 21[/tex]

Part A: What is the greatest common factor of the expression?

We need to find the greatest common factor of the expression.

The expression is divisible by 7

So, 7 is the greatest common factor of the expression.

Part B: Factor the expression

We need to factor the expression: [tex]14x + 28y + 21[/tex]

Taking 7 common:

[tex]14x + 28y + 21\\=7(2x+4y+3)[/tex]

So, factoring the expression [tex]14x + 28y + 21[/tex] we get [tex]\mathbf{7(2x+4y+3)}[/tex]

Find the value of x in the isosceles triangle

Answers

Step-by-step explanation:

Since all 3 sides of the triangle is equal, it is not only an isosceles, but an equilateral triangle.

x = 8sin60° = 6.928 or sqrt48.

That is a question about triangles.

In my answer I will show 2 ways to solve that question, ok? Let's go.

First way - Pythagoras's theorem

The line segment x divide the biggest triangle in 2 equals right triangles.

Let's choose one of them and note that is a triangule with hypotenuse equals to 8 and one cathetus equals to half of 8.

The Pythagoras's theorem says that:

[tex]\boxed{a^2 = b^2 + c^2}[/tex]

a is the hypotenuse and b and c are cathetus.

So, in our case, we know the hypotenuse and one cathetus, let's substitute that in the expression:

[tex]a^2 = b^2 + c^2\\8^2 = 4^4 + c^2\\64 = 16 + c^2\\c^2 = 64 - 16\\c^2 = 64 -16\\c^2 = 48\\c = \sqrt{48}\\c= 4\sqrt{3}[/tex]

Therefore, the value of x is [tex]4\sqrt{3}[/tex].

Second way - The equilateral triangle height

That way to solve the question is a consequence of the previous way.

That triangle has all the sides equals, so it is a equilateral triangle.The line segment x is the height of that triangle. And we can find the equilateral triangle height using that expression:

[tex]\boxed{h = \frac{S\cdot \sqrt{3} }{2} }[/tex]

h is the height and S is the triangle's side.

So, we know that the side of our triangle is 8. Let's change S value in the expression:

[tex]h = \frac{S\cdot \sqrt{3} }{2} \\h = \frac{8\cdot \sqrt{3} }{3} \\h = 4\sqrt{3}[/tex]

Thus, the value of x is [tex]4\sqrt{3}[/tex].

Note that in the 2 ways we find the same result, so that answer is correct.

I hope I've helped. :D

Enjoy your studies! \o/

Factor this polynomial.
-3x^2-16x- 5

Answers

Answer:

B. [tex]-(3x+1) (x+5)[/tex]

Step-by-step explanation

factored the equation to solve. Hope this helps!

i’ll give u brainliest!! what is the shape of 1, 2 and 3

Answers

Answer:

1.81.34

2.96.04

3.110.41

Step-by-step explanation:

Answer:

Shape 1: 96.04

Shape 2: 110.41

Shape 3: 75.43

Step-by-step explanation:

For shape 1, you can do 9.8*9.8 and get the answer of 96.04. For shape 2, you can do 6.1*18.1 to get the answer of 110.41. Finally for shape 3, you can find the whole circle and divide it by 4 because it is only a quarter of the circle. The radius being 9.8, you then get the area of 301.72. But since its only a quarter of a circle you divide by 4 and get 75.43.

HELP PLS ill mark u brainliest

Answers

Answer:

11

Step-by-step explanation:

Since angle 11 is next to angle 12, and they should add up to 180 degrees, which makes them supplementary angles.

Answer:

The person above me is right

Solve for b.
-t = 9(t - 10)
(WILL GIVE BRAINLIEST)

Answers

Answer:

Do you mean solve for t?

If you do, the answer is 9.

Step-by-step explanation:

If we expand the equation out, we get:

-t = 9t - 90

If we move the -90 over to the left side and the -t to the right side, we get:

90 = 10t

Dividing both sides by 9, we get:

t = 9

T=9
The anser is this and its easy first multiply

7 1/2 divided by 3/4 ?
= 5
= 4
= 7
= 10

Answers

Answer:

10

Step-by-step explanation:

I need this awser noww and I forget how to do it !! please help!

SIMPLIFY:
[tex]6 \sqrt{2} \times 5 \sqrt{2} [/tex]

Answers

Answer:

6√2 × 5√2 = 60

Step-by-step explanation:

6√2×5√2

6×5×√2×√2

30×(√2)². since √2²=2

30×2

60 Answer

HOPE IT HELPS YOU

MARK ME AS BRAINEST

Using the formula of A=Pi x r^2 or r= d/2

Answers

9514 1404 393

Answer:

  9π ≈ 28.3 square meters

Step-by-step explanation:

Using the given formula for the area of the circle, we find its area to be ...

  A = πr^2

  A = π(3 m)^2 = 9π m^2 ≈ 28.3 m^2

The dog has about 28.3 square meters to run around in.

1) Positive, negative, zero or undefined?

Answers

Answer:

I would say zero or undefined

Step-by-step explanation:

Answer:

c, zero slope

Other Questions
Have you heard about baby Jeongin? If so, feel free to share your thoughts and don't hold back. What is the relationship between escapism and video gameusage explored in the text?. A body falls from rest with an acceleration of 10m/s square. what is the velocity after 5s?How far has it fallen by them. Based on this passage, which full viewpoint could aprepared speaker share in a discussion?AbcDespite her pessimism, Kahlo's love of life prevailed.Her broken bones healed, and her spirits improvedwhen she was able to leave her bed and walk. Still inpain and limping, Kahlo decided not to return toschool. "I felt I had energies for anything exceptstudying to become a doctor," she wrote in one of hermany notes to Gomez.O Frida Kahlo would have been a great doctor if shehad stayed in school.o I think that Frida Kahlo was very driven to succeedas a painterO Frida Kahlo was a well-respected and verysuccessful painter.O I think that Frida Kahlo's excitement about lifeallowed her to get past the pain. A ball falls through the air at terminal velocity. Which of the following are forces that should be included in a free bodydiagram? (select all that apply)air resistanceforce of motiongravityforce of fall Which sentence option correctly uses a semicolon? O A. Marcus decided to quickly check on Soo she lives just across the street. O B. Marcus, decided to quickly check on Soo she lives just across the street. O C. Marcus decided to quickly check on Soo she lives; just across the street. O D. Marcus decided to quickly check on Soo; she lives just across the street. Explain 9/11.Don't copy from Wikipedia! Identify the complete sentence.A. Anne E. Kelley, a professor at the University of Wisconsin.B. Kelley studies the effects of the chemicals in chocolate.C. Including something called phenylethylamine.D. May actually prevent several serious diseases. which section of passage 1 has a point of view most similar to all of passage 2? I ready-help. Read the following excerpt fromThe Jungle Bookby Rudyard Kipling. Now, Tabaqui knew as well as any one else that there is nothing so unlucky as to compliment children to their faces; and it pleased him to see Mother and Father Wolf look uncomfortable. Which detail indicates the point of view of the narrator who is revealing Tabaquis thoughts? compliment children it pleased him Mother and Father Wolf look uncomfortable MARKIN PEOPLE AS BRAINLIST THANK YOU 16 points:)Research Careers in Science - Geneticist. Find out what you can on how someone would study to be a geneticist. Write up a summary of what you learned :) What effect did the Edict of Worms have on the life of Martin Luther? x=5^m Make m the subject PLEASE HELP!!!!!!!!!!!!!!!!!!!1 A basketball player makes 145 out of 180 free throws. We would estimate the probability that the player makes the next throw to be Which of the following statements best illustrates how value was created for eggs? when a farmer sells a chicken who is no longer producing eggs when a chef raises the price of his omelet to match a competitor's price when a consumer throws away cracked eggs and only uses the good ones when a baker uses eggs to create cookies and cakes A beaver runs at a speed of 2.0\,\dfrac{\text m}{\text s}2.0 s m 2, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction with 45\,\text J45J45, start text, J, end text of kinetic energy. The theory of Copernicus contained six hypotheses: The sun is at the ____of the planets. The Earth is____of the planets. All the planets ____around the sun. Each planet revolves around the sun in its own___and at different___. The moon___around the Earth. The stars are___part of the solar system.(fill in the blanks) -4x + 12 = -6xStep 1: Add 4x to both sides:12 = -6x + 4xStep 2: Combine like terms:12 = -2x The illegal copying of program