Mathematics High School

If 4 is added to double the number n, the result is the same as
if n were quadrupled. What is the value of n?
(A) 2
(B) 4
(C) 6
(D) 8
(E) 10

Answers

Answer 1
I think it’s A because 4*2 is 8 and if n were quadrupled it would be 2
Answer 2

Answer:

A) 2

Step-by-step explanation:

For this problem, you can create an equation.

2n+4=4n

Then, divide by 2.

n+2=2n

Finally, subtract n from both sides.

2=n

Related Questions

Given: 9-4x = -19
Prove: x = 7

Answers

Answer:

Easy

Step-by-step explanation:

-19-9=-28

-28/-4=7

thus x=7

Kyle has $200 to spend on a camera and a camera case. If he wants to spend three times as much on his camera as on the case, what is the most he should spend on the camera case?

Answers

Answer:

$50

Step-by-step explanation:

I took $200 divided by 4 (he wants to spend 3 times as much) so he would spend $50 on case and $150 on camera

x divided by six eqauls twentyfive

x/6=25

Answers

Answer:

x = 150

Step-by-step explanation:

x / 6 = 25

x = 25 (6)

x = 150

Answer: x=150

Step-by-step explanation:

Write the equation of each line in slope-intercept form. A line that passes through
(-4, 8) and (4, 6)

Answers

Answer:

[tex]y=-\frac{1}{4}x+7[/tex]

Step-by-step explanation:

Write in slope-intercept form,  y = m x + b .

Answer:

4y=x+20

Step-by-step explanation:

gradient

8-6/-4-4

= 1/4

y-6=1/4(x-4)

4y-24=x-4

4y=x+20

18. Supongamos que tras una encuesta se ha concluido que si se elige al azar a una persona, la probabilidad de que esté a favor de la retransmisión de partidos de fútbol es de 0,8; de que esté a favor de la existencia de canales de televisión de pago, de 0,4;y de que esté a fa vor de la retransmisión de partidos de fútbol y tam bién de la existencia de canales de pago, de 0,3 a) Calcula la probabilidad de que una persona esté a favor de la retransmisión de partidos de fútbol o de la existencia de canales de televisión de pago.

Answers

Responder:

0,9

Explicación paso a paso:

Sea P (MuT) la probabilidad de que una persona esté a favor de retransmitir partidos de fútbol o la existencia de canales de televisión de pago

probabilidad de que esté a favor de retransmitir partidos de fútbol sea P (M) = 0,8

Probabilidad de que esté a favor de la existencia de canales de televisión de pago P (T) = 0,4

La probabilidad de que esté a favor de la retransmisión de partidos de fútbol y también de la existencia de canales de pago sea P (MnT) = 0,3

Usando la fórmula de notación de conjuntos

P (MuT) = P (T) + P (M) - P (MnT)

Sustituir los parámetros dados

P (MuT) = 0,4 + 0,8-0,3

P (MuT) = 1,2-0,3

P (MuT) = 0,9

De ahí que la probabilidad de que una persona esté a favor de retransmitir partidos de fútbol o la existencia de canales de televisión de pago es de 0,9.

Answer:Responder:

0,9

Explicación paso a paso:

Sea P (MuT) la probabilidad de que una persona esté a favor de retransmitir partidos de fútbol o la existencia de canales de televisión de pago

probabilidad de que esté a favor de retransmitir partidos de fútbol sea P (M) = 0,8

Probabilidad de que esté a favor de la existencia de canales de televisión de pago P (T) = 0,4

La probabilidad de que esté a favor de la retransmisión de partidos de fútbol y también de la existencia de canales de pago sea P (MnT) = 0,3

Usando la fórmula de notación de conjuntos

P (MuT) = P (T) + P (M) - P (MnT)

Sustituir los parámetros dados

P (MuT) = 0,4 + 0,8-0,3

P (MuT) = 1,2-0,3

P (MuT) = 0,9

De ahí que la probabilidad de que una persona esté a favor de retransmitir partidos de fútbol o la existencia de canales de televisión de pago es de 0,9.

Step-by-step explanation:

Please help me!, 40 points!

Answers

Answer:

what is the question

Step-by-step explanation:

Answer:

What is the question?

Step-by-step explanation:

what is x5/3x + 1/3x=10+7/3x

Answers

Answer:

x=6/25      or     decimal = x=-0.24

Step-by-step explanation:

R
$
Landon invests $3000 into stocks. The
account has a rate of 10% and is com-
pounded annually. How much money is
in the account after 5 years? How much
interest did he earn?

Answers

1,500$ in interest was earned 4,500 is in the account total

Solve using the standard algorithm.
a. 0.3 + 0.82 = ____________

b. 1.03 + 0.08 = ___________

Answers

Answer:

A= 1.12

B= 1.11

Step-by-step explanation:

A.     0.82                 B.      1.03    

+       0.3                        +  0.08

   ______                     _______

      1.12                            1.11

Please answer this, i really need it its my last question

Answers

Answer:

y=-4 to 4

x=-1 to -7

Step-by-step explanation:

15-7m=-5-2m solve the equation

Answers

Add 5 to each side and add 7m to each side and you get 20=5m and the you divide 5 on each side so m=4

What is the vertex of the graph shown?

Answers

Answer:

(0,2)

Step-by-step explanation:

To find vertex all you have to do is look were the bend part of the line is on the x-axis or y-axis iin this case its on the y-axis

Brainiest would be noice

High Hopes^^

Barry-

You and your sister help your neighbor rake their lawn. Your sister can rake at a rate of 2
square meters per minute, and you can rake at a rate of 4 square meters per minute. You
start at the same time. After how many minutes will you rake 8 square meters more than
Your sister?

Answers

Answer:

4 minutes

Step-by-step explanation:

Min. Sister. You

1. 2. 4

2. 4. 8

3. 6. 12

4. 8. 16

4 minutes
If you started at the same time, and both your sister and you stay at the same constant rate, you would have raked 8 more squared meters than her after 4 minutes.
Zero minutes:You rated 0, she raked 0
One minute:You raked 4, she raked 2
Two minutes:You raked 8, she raked 4
Three minutes:You raked 12 she raked 6
Four minutes:You raked 16 she raked 8

3.5 in/year=cm/day
help

Answers

Answer:

.024 cm/day

Step-by-step explanation:

can you guys help, plz i dont understand it

Answers

Answer:

21x+6

Step-by-step explanation:

Please help!!!!!!!!!​

Answers

Answer:

bottom one

Step-by-step explanation:

What is the result when x^3+2x^2– 11x + 8 is divided by x - 1?

Answers

Answer:

result is x^2+3x-8 sorry for the photo quality

I need help asap please ​

Answers

Answer:

its correct

Step-by-step explanation:

Answer:

I can help

Step-by-step explanation:

but i don't see the rest of the question lol

Mia can purchase a 40-ounce jar of peanut butter for $5.20 or a 15-ounce jar for $2.70. How much does Mia save per ounce by buying the 40-ounce jar? Pleaseeee help hurry in time.

Answers

$5.20/40=0.13
$2.70/15=0.18
0.18-0.13=$0.05

If has a decimal approximation of 3.4, then is between which two integers? In your final answer, include all calculations.

Answers

Answer: It is between 3 and 4.

Step-by-step explanation:

Integers are whole numbers and its opposite, for example,  -5,-4,-3,-2,-1, 0, 1,2,3,4, 5 ,....

Meaning that 3.4 is not an integer so it fall between two integers and those integers has to be positive because 3.4 is a positive number.  

3.4 is slightly greater than 3  but is less than 4.

Meaning that 3.4 is between the integers 3 and 4.

Battery wholesaler produces 5200 batteries. Of those batteries produced, 8% are defective. How many batteries are defective?

40
416
650
41,600

Answers

Answer:

416

Step-by-step explanation:

Took the quiz. :<C

what is the graph of y= -4x -1?

Answers

Here is the graph if u need coordinates let me know

Answer:

The y-intercept is -1

The slope is -4 so you will go down 4 and over 1 to the right.

The line is negative

So it will be pointing Northwest and Southeast \ that way.

Step-by-step explanation:

Did you understand this??

George is in a book club. He earns 6 points for every 9 books he reads, and he needs to earn 24 points to receive a free book. How many points does he earn per book?​

Answers

Answer:

36 books

Step-by-step explanation:

9=6

6*4=24 (9*4=36)

What is the area, in square meters, of the shape below? Express your answer as a fraction in simplest form

Answers

Answer:

[tex]\frac{5}{12}[/tex]m²

Step-by-step explanation:

Given parameters:

   Base  = [tex]\frac{5}{3}[/tex]m

   Height  = [tex]\frac{1}{2}[/tex]m

Unknown:

Area of the triangle = ?

Solution:

The area of a traingle is given as:

   Area  = [tex]\frac{1}{2}[/tex] x base  x height

Insert parameters and solve;

   Area =  [tex]\frac{1}{2}[/tex] x  [tex]\frac{5}{3}[/tex] x  [tex]\frac{1}{2}[/tex] = [tex]\frac{5}{12}[/tex]m²

Answer:

Step-by-step explanation:

5/10

simplify this surd expression

Answers

4 square root 6. 4 on the outside 6 in the inside :)

Answer:

4√6

Step-by-step explanation:

3x + 5y + z = 2
x + 2y + 3z = 6
2x + 4y + 2z = 9

Answers

X = 2 - 5y - z / 3

X = 6 - 2y - 3z

X = 9 - 4y - 2z / 2

Jacob has unlocked 6 less than
twice as many game levels as
Shannon. If Jacob has unlocked 14
levels, how many levels has
Shannon unlocked?

Answers

Answer:

Shannon has unlocked 40 levels.

Step-by-step explanation:

14 + 6 = 20

20 * 2 = 40

Michael invests USD 20 000 at 9.6% p.a. compounded monthly.
How long will it take for his investment to reach USD 25 000?

Answers

Given :

A = 25000

P = 20000

r % = 9.6 % = 0.096

n = 12

To Find :

The time taken say t.

Solution :

We know, compound interest is given by :

[tex]A=P(1+\dfrac{r}{n})^{n.t}[/tex]

Taking log both sides :

[tex]A=P(1+\dfrac{r}{n})^{n.t}\\\\log\ \dfrac{A}{P}= n.t\times log( 1+\dfrac{r}{n})\\\\t =\dfrac{1}{n}\times \dfrac{log\ \dfrac{A}{P}}{log(1+\dfrac{r}{n})}\\\\\\t=\dfrac{1}{12}\times \dfrac{log\ \dfrac{25000}{20000}}{log(1+\dfrac{0.096}{12})}\\\\\\t=2.33\ years[/tex]

Hence, this is the required solution.

What is the value of x?

Answers

Answer:

  x = 32

Step-by-step explanation:

Each angle of the equilateral triangle is 60°.

  (2x -4)° = 60°

  x -2 = 30 . . . . . . divide by 2°

  x = 32

__

  5y° = 60°

  y = 12 . . . . . . . . . divide by 5°

i need help with geometry

Answers

5 because if the next line has one more than the previous one it will be 5

Answer:

5

Step-by-step explanation:

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