Solve the single variable equation for n.
3(-n+4) + 5n = 2n.
Show your work.

a) n = 3
b) no solution
c) infinitely many solutions

Answers

Answer 1
-3n+12+5n=2n
for work

2n+12=2n
-2n. -2n

12=n

Related Questions

A Group of drivers were looking at their debts. Mike is in $250.00 of debt. Sammy has $145.00 of debt. Guy has a positive bank balance of $300.00. Joe has a positive bank balance of $350.00. Who has the most money?

Answers

Answer:

Joe has the most money

Step-by-step explanation:

Mike has a balance of -250

Gammy has a balance of -145

Guy has a balance of +300

Joe has a balance of +350

log(x+4)-log(x-2)=1
step by step please!​

Answers

Answer:

x

=

7

9

.

Step-by-step explanation:

x

=

7

9

.

Explanation:

Remember the rules of logarithms:

log

a

log

b

=

log

(

a

b

)

. Using this, we get

log

x

log

(

x

+

7

)

=

1

log

(

x

x

+

7

)

=

1

Now we remember that

log

c

=

d

c

=

10

d

. Essentially what we're doing there is taking 10 to the power of both sides, and since

10

x

and

log

x

are inverse functions, they cancel off.

f

1

[

f

(

x

)

]

=

x

. So we get

log

(

x

x

+

7

)

=

1

(

10

log

(

x

x

+

7

)

=

10

1

)

x

x

+

7

=

10

1

x

=

x

+

7

10

10

x

=

x

+

7

9

x

=

7

x

=

7

9

So

x

=

7

/

9

is our answer.

Identify an equation in point-slope form for the line perpendicular to y = x-7 that passes through (-2, -6).
A. y + 2 = -4(X+6)
B. V + 6 = -4(X+2) V
C. y +6 . ==1+2
D. 4-6-76-2​

Answers

Answer:

[tex]y +6 = -(x +2)[/tex]

Step-by-step explanation:

Given

Perpendicular to: y = x - 7

Passes through (-2,-6)

Required

Find the equation

An equation has the form:

[tex]y = mx + b[/tex]

Where

[tex]m = slope[/tex]

In [tex]y = x - 7[/tex]

[tex]m = 1[/tex]

Since the required equation is perpendicular to [tex]y = x - 7[/tex], then the relationship between their slopes is:

[tex]m_2 = -\frac{1}{m}[/tex]

Substitute 1 for m

[tex]m_2 = -\frac{1}{1}[/tex]

[tex]m_2 = -1[/tex]

The equation is then calculated using:

[tex]y -y_1 = m(x - x_1)[/tex]

Where

[tex]m_2 = -1[/tex]

[tex](x_1,y_1) = (-2,-6)[/tex]

So, we have:

[tex]y - (-6) = -1(x - (-2))[/tex]

[tex]y +6 = -1(x +2)[/tex]

[tex]y +6 = -(x +2)[/tex]

There are 4 doctors working in a clinic. Each doctor has 2 nurses assisting them. There are two receptionists, Jay and Molly, working at the reception. 1 How many people are working in the clinic? I​

Answers

Answer:

14 people

Step-by-step explanation:

-3(-4)
I need the value

Answers

Answer:

12

Step-by-step explanation:

3*4=12

the negatives cancel out.

the answer to -3(-4) would be 12.
same sign in multiplication means the answer would be positive!

hope this helps!! pls also mark me brainliest if you can :)) i am trying to level up. thank you!!

Use the Distributive Property to solve the equation -7​(x+2​)=21

Answers

Answer:

i hope i'm not too late to give you an answer.

the answer is x=-5

hope this helps<3

i wish you the best of luck :)

please answer ASAP. will give brainliest

Answers

Answer:

450

Step-by-step explanation:

Solve for x. Area = 100yd^2

Answers

Use the app named Socratic
socratic ain’t it trust it don’t let u see the awnser

can someone help!
-lee

Answers

Step-by-step explanation:

When multiplying 2 numbers with the same base number, we can directly add their indices.

For example, 2¹ * 2³ = 2^(1 + 3) = 2⁴.

Therefore 7³ * 7^? = 7^(3 + ?) = 7¹⁴.

=> 3 + ? = 14, ? = 11.

The blank should be filled with 11.

will mark you brainly.​

Answers

Answer:

number 1 - 14 books

Answer:

I think it's 30......

Step-by-step explanation:

31-1=30 books..

The range is the highest number subtract the lowest number!!

Sorry if this doesn't help.

How do I graph y = −x+7?

Answers

the slop is -1 and the y-intercept is (0,7) so then go on the graph and plot a point on the y- axis line at 7. Then go right 7 units and down 7 units and that should be it :)

y=-x+7 (let x=7)

y=-7+7

y=0

(7,0)

y=-x+7 (let y=4)

x=3

(3,4)

then the graph will be passing through (7,0),(3,4)

HEKP PLEASE; what is movement competence ?
1 when we move in safe manner
2 when we move with confidence
3 when our movement is effective
4 all the above

Answers

Answer:

I think its maybe 2 you might want to check tho

Can someone help me with this please hurry

Answers

Answer:

1 obtuse

2straight

3acute

4adjacent

5linear pair

6 50 degrees

7 82 degrees

how do i do
x^2 - 7x - 34 = 10
^ = power to
can u answer this now please its urgent i only got 2 mars how do i get the other 2 marks and the bottom bit of the question got me 2 marks thew top bit didnt get me anything

Answers

Answer:

x = 11 / x = - 4

Step-by-step explanation:

x² - 7x - 34 = 10

x² - 7x - 34 - 10 = 10 - 10

x² - 7x - 44 = 0

x² + 4x - 11x - 44 = 0

x (x + 4) - 11 ( x + 4) = 0

(x - 11)(x + 4) = 0

(x - 11) = 0 / (x + 4) = 0

x = 11 / x = - 4

Hope that helps! (If it doesn't, please tell me what you want me to answer or explain, or how I can improve the answer.) :)

In golf, the lower your score the better. Negative scores are best of all. Teri scored +1 on each of the first three holes at a nine-hole miniature golf course. Her goal is a total score of -9 or better after she has completed the final six holes. Let h represent the score Teri must avereage on each of the last six holes in order to meet her goal. Write a 2-step inequality you can use to find h

Answers

Answer:

h ≤ - 2

Step-by-step explanation:

Given :

Score on each of first 3 holes = +1

Total number of holes = 9

Target score - 9 or better ≤ - 9

Number of holes left = 9-3 = 6

h = average score on each of last 6 holes to meet target score ;

3 * (+1) + (number of holes left * average score) = target score

3 + (6 * h) ≤-9

3 + 6h ≤ - 9

6h ≤ - 9 - 3

6h ≤ - 12

h ≤ - 2

Can anyone help me please?

Answers

Answer:

147cm²

Step-by-step explanation:

As pi is 3 and radius is 7cm

Putting these on the equation will give us

e

3 x 7² = 147cm²

The sum of two intergers is 9. Their difference is 5. What are the two intergers?​

Answers

Answer: x + y = 9

x - y = 2

x = 5 + y

5 + y + y = 9

5 + 2y = 9

2y = 9 - 5

2y = 4

y = 2

----------

x = 9 - 2

x = 7

----------

Step-by-step explanation:

The area of a rectangle is 84 inches. It has a length of x−2 and a width of x+3. What are the dimensions of the rectangle?

Answers

Call the width of the rectangle x. Call the length of the rectangle x + 2. The area of the rectangle would be the length times the width. We know this is 15 square inches. Set up the equation and solve for x.

(x +2)x = 15
x2 + 2x = 15
x2 + 2x - 15 = 0
Factor the quadratic equation:
(x - 3)(x + 5) = 0
x = 3 or x = -5
Since length can't be negative, discard the answer -5.
If x = 3, then the width is 3 and the length is x + 2 or 5. 5 x 3 = 15 which equals the area.

Answer:

8 inches by 13 inches

Step-by-step explanation:

A recipe for 24 cookies calls for 4 tablespoons of sugar. If you make 40 cookies and use 5 tablespoons, will the cookies taste the same? Explain

Answers

Answer:

Step-by-step explanation:

No, because they wouldn't contain the same amount of sugar per cookie  

for the first recipe - 24 cookies with 6 tablespoons  

thats 6/24 so 0.25 tablespoons of sugar per cookie  

for the second recipe - 36 cookies with 10 tablespoons  

thats 10/36 so 0.276 tablespoons per cookie  

the cookies in the second recipe would be slightly sweeter than the cookies in the first  

No because the ratio will be different.
The 24cookies per 4 sugar tbsps calls for 1 tbsp for every 6 cookies. This makes the ratio 6:1.
If u divide 40/5, you will get a ratio of 8:1. This means 1 tbsp of sugar in every 8 cookies. Making the cookies less sugary

Is 150% of 32 less than 100, greater than 100 but less than 150, or greater than 150?

Answers

Answer:

Here Is Your Answer 150% Is Greater Than 100 But Less Than 150

1
Which of the following best describes the equation below?
y = 4

Answers

Please describe the question

pantown Practice & Protein 01/04/2021)
35 PS 9
Question Help
Think About the Process Karen purchased a DVD player on sale. The original selling price was
$175.90. The sale price was $150.75. What is the first step in finding the percent markdown? Find the
percent markdown

Answers

Answer:

It would be a 14% markdown. If needed more precise it'd be 14.29% round if you need.

What is the sum of 38 and (−16)? please help me if you are here thank you for at least reading my question :)

number
--------
number

Answers

Answer:

22

Step-by-step explanation:

38 - 16 = 22

Find the independent variable and dependent and write an equation (gr 9 hw) 1) To fix a car, Fix-it Auto charges a base fee of $20 plus $40 per hour. 2) The cost of a banquet at Jean's Banquet Hall is $450 for the rental of the hall and $15 per guest. 3) An author earns a royalty of $1.25 for each book sold. 4) Marie has $500 in her bank account. Each week she plans to deposit $20.

Answers

Answer:

Step-by-step explanation:

Using the regression equation :

y = mx + c

y = dependent variable ; x = independent variable ; m = slope ; c = intercept

1.) base fee = $20 ; hourly charge = $40

Hourly charge = independent

Total charge = dependent

Total charge = 40x + 20

x = Number of hours

2.) rental fee = $450; charge per guest = $15

Total rental fee = dependent

Independent = $15 = charge per guest

Number of guest = x

Total fee = 15x + 450

3.)

Royalty earned = dependent variable

Cost per book = $1.25 = independent

Royalty earned = $1.25 * number of books

4.)

Amount deposited per week = $20 = independent variable

Amount in account = dependent variable

y = 500 + 20x

x = number of weeks

A ball is thrown from a point 6 metres above the ground. The graph shows the height of the bake above the ground in metres. Estimate the speed of the ball in m/s after 1 second. You must show working.

Answers

Answer:

1.38

Step-by-step explanation:

1.7-0.4=1.8

1.8/1.3=1.38

On graph place point at (1,8) and draw a triangle

The speed of the ball is 2 m/s.

What is Speed?

The speed of the object is calculated as,

Speed = Distance / Time

Given that;

A ball is thrown from a point 6 meters above the ground.

The graph shows the height of the bake above the ground in meters.

Now,

Draw the line perpendicular to both the x - axis and y - axis for 0 to 1 second.

So, we get;

Value of y - coordinate = 2 m

Value of x - coordinate = 1 m

Thus, Speed of the ball = Distance / Time

                                    = 2 / 1

                                    = 2 m/s

So, The speed of the ball is 2 m/s.

Learn more about the speed visit:

https://brainly.com/question/3004254

#SPJ2

. The length of a square board is (5x+3). Find the area of the board. Hint: Formula A=l*w

Answers

Answer:

64

Step-by-step explanation:

Answer:

A = 25x^2 + 30x + 9

Step-by-step explanation:

A = (5x+3) * (5x+3) or A = (5x+3)^2

A = 5x*5x + 5x*3 + 5x*3 + 3*3

A = 25x^2 + 15x + 15x + 9

A = 25x^2 + 30x + 9

Picture is above ^^^^^

Answers

Answer:

the first one

Step-by-step explanation:

Simplify the expression.
7m+6+2m+7

Answers

Answer:

[tex]9m + 13[/tex]

Step-by-step explanation:

1. Collect like terms.

[tex](7m + 2m) + (6 + 7)[/tex]

2. Simplify.

[tex]9m + 13[/tex]

There for the answer is, 9m + 13

Determine which letter best represents the expression divide 15 by B a. B divided by 15 b. 15 divided by be

Answers

Answer: 15/b

Step-by-step explanation:

Which transformation of LMN produces the image L,M,N

Answers

Can you provide an image with this question?

I need help for this too for the person who asked for a picture here you go.

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