Solve the system.

x+2y=0

2x-y=4

The solution is ___

Explain your choice of method.

Answers

Answer 1

Answer:

x = 8/5 and y = -4/5

The method used was SUSTITUION METHOD

Step-by-step explanation:

x = -2y

2(-2y)-y = 4

-4y-y = 4

-5y = 4

y = -4/5

then

x= -2(-4/5)

x = 8/5


Related Questions

Write the equation y = mx + b of a line given two points.
Ex 1.(3,3) and (4,-2)
Ex 2. (4,1) and (6,2)

Answers

Answer:

Ex 1. y= -5.00x + 18.00   Ex 2. y= 0.50x + -1.00

Step-by-step explanation:

(results are in decimal form, rounded to the nearest 100th)

Based on the table,
what is the best
prediction of the
number of clicks on
the advertisement if
1,500 people visit the
website?
F. 7
G. 137
H. 83
J. 105





PLEASE HELP
ILL GIVE YOU BRAINIEST

Answers

H. 83 would be the best prediction because when there was 510 visits there was 32 clicks so u multiply 32 times 3 and get 96 but since it’s 510 visits and not 500, 83 would be the most predictable :)

The linear relation is y = 0.049x + 8.606 then the value of y is 83. Then the correct option is H.

What is the linear system?

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.

The linear relation is given as

[tex]\rm y - 63 = \dfrac{63-60}{1106-1045} (x - 1106)\\\\y = 0.049x+8.606[/tex]

For x = 1500, then the value of y will be

[tex]\rm y = 0.049\times 1500+8.606\\\\y = 82.37 \approx 83[/tex]

More about the linear system link is given below.

https://brainly.com/question/20379472

what is 5 1/3 as an improper fraction??

Answers

Answer:

5/3

Step-by-step explanation:

PLS MAKE ME AS BRAINLIST

What is the area of a quadrilateral with vertices at (1,6),(7,6),(1,12),(7,12)?

Answers

Answer:

Let us consider the quadrilateral ABCD shown below. 

Let us consider the quadrilateral ABCD shown below. 

In the above quadrilateral, A(x1, y1), B(x2, y2), C(x3, y3) and D(x4, y4) are the vertices.

To find area of the quadrilateral ABCD, now we have take the vertices A(x1, y1), B(x2, y2), C(x3, y3) and D(x4, y4) of the quadrilateral ABCD in order (counter clockwise direction) and write them column-wise as shown below. 

Add the diagonal products x1y2, x2y3, x3y4 and x4y1 are shown in the dark arrows.

(x1y2 + x2y3 + x3y4 + x4y1) -----(1)

Add the diagonal products x2y1, x3y2, x4y3 and x1y4 are shown in the dotted arrows.

(x2y1 + x3y2 + x4y3 + x1y4) -----(2)

Subtract (2) from (1) and multiply the difference by 1/2 to get area of the quadrilateral ABCD.

So, area of the quadrilateral ABCD is

=  (1/2) ⋅ {(x1y2 + x2y3 + x3y4 + x4y1)

- (x2y1 + x3y2 + x4y3 + x1y4)}

Problem :

Find the area of the quadrilateral whose vertices are

(-4, -2), (-3, -5), (3, -2) and (2, 3)

Solution : 

Let A(-4, -2), B(-3, -5), C(3, -2) and (2, 3).

Plot A, B, C and D in a rough diagram and take them in counter-clockwise order.

Then,

(x1, y1)  =  (-4, -2)

(x2, y2)  =  (-3, -5)

(x3, y3)  =  (3, -2)

(x4, y4)  =  (2, 3)

Area of triangle ABC is 

=  (1/2) ⋅ {(x1y2 + x2y3 + x3y4 + x4y1)

- (x2y1 + x3y2 + x4y3 + x1y4)}

=  (1/2) x  {[20 + 6 + 9 - 4] - [6 - 15 - 4 - 12]}

=  (1/2) x  {[31] - [-25]}

=  (1/2) x  {31 + 25}

=  (1/2) x  56

=  28

So, area of the given quadrilateral is 28 square units.

In the above quadrilateral, A(x1, y1), B(x2, y2), C(x3, y3) and D(x4, y4) are the vertices.

To find area of the quadrilateral ABCD, now we have take the vertices A(x1, y1), B(x2, y2), C(x3, y3) and D(x4, y4) of the quadrilateral ABCD in order (counter clockwise direction) and write them column-wise as shown below. 

Add the diagonal products x1y2, x2y3, x3y4 and x4y1 are shown in the dark arrows.

(x1y2 + x2y3 + x3y4 + x4y1) -----(1)

Add the diagonal products x2y1, x3y2, x4y3 and x1y4 are shown in the dotted arrows.

(x2y1 + x3y2 + x4y3 + x1y4) -----(2)

Subtract (2) from (1) and multiply the difference by 1/2 to get area of the quadrilateral ABCD.

So, area of the quadrilateral ABCD is

=  (1/2) ⋅ {(x1y2 + x2y3 + x3y4 + x4y1)

- (x2y1 + x3y2 + x4y3 + x1y4)}

Problem :

Find the area of the quadrilateral whose vertices are

(-4, -2), (-3, -5), (3, -2) and (2, 3)

Solution : 

Let A(-4, -2), B(-3, -5), C(3, -2) and (2, 3).

Plot A, B, C and D in a rough diagram and take them in counter-clockwise order.

Then,

(x1, y1)  =  (-4, -2)

(x2, y2)  =  (-3, -5)

(x3, y3)  =  (3, -2)

(x4, y4)  =  (2, 3)

Area of triangle ABC is 

=  (1/2) ⋅ {(x1y2 + x2y3 + x3y4 + x4y1)

- (x2y1 + x3y2 + x4y3 + x1y4)}

=  (1/2) x  {[20 + 6 + 9 - 4] - [6 - 15 - 4 - 12]}

=  (1/2) x  {[31] - [-25]}

=  (1/2) x  {31 + 25}

=  (1/2) x  56

=  28

So, area of the given quadrilateral is 28 square units.

The area of the given quadrilateral with vertices at (1,6),(7,6),(1,12),(7,12) is 28 square units.

Let the quadrilateral be ABCD.

What is a quadrilateral?

Any closed figure made by 4 line segments joined end to end in series is called a quadrilateral.

We need the area of the quadrilateral whose vertices are;

(-4, -2), (-3, -5), (3, -2) and (2, 3)

Let; A(-4, -2), B(-3, -5), C(3, -2) and (2, 3).

Then, we have;

(x1, y1)  =  (-4, -2)

(x2, y2)  =  (-3, -5)

(x3, y3)  =  (3, -2)

(x4, y4)  =  (2, 3)

Area =  (1/2) ⋅ {(x1y2 + x2y3 + x3y4 + x4y1)

- (x2y1 + x3y2 + x4y3 + x1y4)}

=  (1/2) x  {[20 + 6 + 9 - 4] - [6 - 15 - 4 - 12]}

=  (1/2) x  {[31] - [-25]}

=  (1/2) x  {31 + 25}

=  (1/2) x  56

=  28

So,

The area of the given quadrilateral with vertices at (1,6),(7,6),(1,12),(7,12) is 28 square units.

Learn more about quadrilaterals here:

https://brainly.com/question/1365755

#SPJ5

10 POINTS!!!! for the most meaningful message along with a Brainliest

Answers

Answer:

If you always give without thinking of receiving something, you will get more than you need later.

-lorraine9fig

Step-by-step explanation:

Yes. I used my own quote.

"Challenges are what make life interesting and overcoming them is what makes life interesting"

-Joshua J. Marine

"Don’t Let Yesterday Take Up Too Much Of Today."

-Will Rogers

“You Learn More From Failure Than From Success. Don’t Let It Stop You. Failure Builds Character.”

– Unknown

“It’s Not Whether You Get Knocked Down, It’s Whether You Get Up.”

–Vince Lombardi

“Failure Will Never Overtake Me If My Determination To Succeed Is Strong Enough.”

– Og Mandino

“We May Encounter Many Defeats But We Must Not Be Defeated.”

– Maya Angelou

“The Only Limit To Our Realization Of Tomorrow Will Be Our Doubts Of Today.”

– Franklin D. Roosevelt

Solve for x.And please show me how u got the answer
9
12
4x - 2)
3x + 2

Answers

Answer: -7

Step-by-step explanation:

3x + 2 + 12 = 4x -2 + 9

3x + 14 = 4x + 7

-4x  -14    -4x  -14

-1x = 7

x= -7

What is the rule for reflecting across the x-axis?​

Answers

Answer:

See below

Step-by-step explanation:

If we want to reflect across x-axis, we'll change the y-coordinate of the        co-ordinate to it's opposite (If it's negative, it will become positive and vice versa) while the x-coordinate will remain the same.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AnonymousHelper1807

You have been working hard and saving money to buy your first used car - woo hoo! But you still need more money. (It's an expensive car!) You borrow $10,000 from the bank at a 9% rate for 5 years. How much interest will you pay on this loan? Write your answer as a number with no dollar sign.

Answers

Answer:

4500

Step-by-step explanation:

10000 x .09 x 5

if I have a 40 in a class and get 100% on something thats 40% of my grade. whatsmy new grade PLEASE ANSWER like please please please please answer

Answers

Answer: depends on how your class is weighted, and specifically how many points the thing is, and your point score.

Step-by-step explanation:

i guess 60%? it's too vague

Hmm l can’t figure it out

Use the graph to write a linear function that relates y to x .

Answers

Answer:

2y = x + 2

Step-by-step explanation:

Looking at the graph, we can see from one point to the next (from right to left), the x-value rises by 2 and the y-value by 1;

From this we can work out the gradient between two points using the formula, i.e. the change/difference in y divided by the change/difference in x:

[tex]m = \frac{dy}{dx} = \frac{1}{2}[/tex]

Joining the points gives a straight line, which means a constant gradient of ¹/₂

Use the line equation formula to get the function:

y - y₁ = m(x - x₁)

m = ¹/₂

x₁ = 0

y₁ = 1

y - 1 = ¹/₂.(x - 0)

y - 1 = ¹/₂.x

2y - 2 = x

2y = x + 2

The base of a parallelogram is 15.25 cm, side length is 12.25 cm, and height is 6.8 cm.
what is the area? answer has to be cm

Answers

Answer:

The area is 103.7 cm

Step-by-step explanation:

Multiply the base by the height:

15.25 * 6.8 = 103.7

Please help me I've been dying for twelve minutes.

Answers

1 goes on the first on -1 goes on the second

- 1/125 goes on the last one and -125 the third one

Write an exponential function to model the situation. Then find the value of the function after 5 years to the nearest whole number. A populaton of 330 animals that decreases at an annual rate of 22%.

Answers

Answer:

Results are below.

Step-by-step explanation:

First, we need to establish the decrease function in the given population:

FV= PV/(1+g)^n

FV= future value

PV= present value

g= decrease rate

n= number of periods

Now, for the given information:

PV= 330

g= 22% = 0.22

n= 5 years

FV= 330 / (1.22)^5

FV= 122

Find the slope between the following two points: (3, 1), (5, 4).

Answers

Answer:

3/2 or 1.5

Step-by-step explanation:

[tex]slope = \frac{4 - 1}{5 - 3} \\ \\ = \frac{3}{2} \\ \\ = 1.5[/tex]

1.5 is the answer to your problem

Please help!!!! Thank youuu I’ll make brainlisy

Answers

Answer:

A

Step-by-step explanation:

it isn't a straight line, so it is nonlinear

I really need help with the first one, so I can do the rest of anyone could help I’d be so grateful.

Answers

Answer:

1) a = 1 ; b = 5 ; c = 0

2) a = 1 ; b = 3 ; c = 10

3) a = -5 ; b = -7 ; c = 2

4) a = 1 ; b = 2 ; c = -9

5) a = -7 ; b = 6 ; c = -1

6) a = 4 ; b = -10 ; c = -7

Step-by-step explanation:

a , b & c are just coefficients of the equation

Answer: [tex]x^{2}[/tex] =5x=0  

Step-by-step explanation:

For a soccer practice, the coach set up four cones, labeled W, X, Y, and Z, to mark the edges of the rectangular field. Suppose the field is drawn on a coordinate plane, where the x- and y-values represent the position, in yards, from the center of the field, which is located at (0, 0). The location of the cones are as follows. Cone W is located at (-38, -53). Cone X is located at (-38, 53). Cone Y is located at (38, 53). Cone Z is located at (38, -53). What is the perimeter of the field? A. 364 yards B. 8,056 yards C. 182 yards D. 38 yards

Answers

Answer:

A. 364 yards

Step-by-step explanation:

The distance between two points  [tex]A(x_1,y_1)\ and\ B(x_2,y_2)[/tex] on the coordinate plane is given as:

[tex]|AB|=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

The cone W, X, Y and Z form a rectangle.

The perimeter for the rectangle = 2(length +  breadth)

[tex]Length=|WX|=\sqrt{(-38-(-38))^2+(53-(-53))^2}=106 \\\\Breadth=|XY|=\sqrt{(38-(-38))^2+(53-53)^2}=76[/tex]

Perimeter = 2(length + breadth) = 2(106 + 76) = 364 yards

Slope:

Y-Intercept:

Equation:
pls help

Answers

Answer:

Slope: 4

Y-interecept: -2

Step-by-step explanation:

To find the slope, use rise over run. Go up from the y-intercept and over until you hit another exact point.

To find the y-intercept, just find the point that is on the y-axis.

y intercept is -2 and the slope is 3

Can some one tell me where they go? Please and thank you!!

Answers

Answers:

A. 4 inches = pencil
B. 6 feet = tablecloth
C. 1 meter = person’s leg
D. 5 yards = ladder
E. 6 centimeters = insect
F. 2 millimeters = grain of rice
G. 3 kilometers = foot race

hope this is right :)
can you give brainliest plz

Answer:

The same as the top also thanks for the points and did you get a warning for your last post

Step-by-step explanation:

2 (x+4) = 2 (x-6) Solve the equation

Answers

Answer: x=16 this is the answer without the 2 in the beginning of the equation with the 2 there's no solution

Step-by-step explanation:

Which statement is true?
Question 9 options:

A)

|–45| = 45 and |–96| = 96.

B)

–|–45| = 45 and –|–96| = –96.

C)

|–45| = 45 and |–96| = –96.

D)

|–45| = –45 and |–96| = –96.

Answers

Answer:

d can be right answer....

A is a right answer (if the number is negative between lines it gone be positive out of em )

7(1 - y) = -3(y - 2)

Answers

Answer:

7 - 7y = -3y - (-6)

Step-by-step explanation:

the LCM of 6 and 9 is _____.

Answers

Answer:

18

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Name the property that proves these triangles are congruent

Answers

Answer:

SAS or Side-Angle-Side

Step-by-step explanation:

What number is 7.2% of 35?

Answers

Answer:

2.52

Step-by-step explanation:

35 x 7.2 = 2.52 :D

I will give brainliest to whoever answers it correctly
An arithmetic sequence is represented by the explicit formula A(n) = 8 - 6(n - 1) What is the recursive formula? Group of answer choices

Answers

Answer:

A(1) = -4A(n) = A(n - 1) - 6

Step-by-step explanation:

GivenAP with the explicit formula A(n) = 8 - 6(n - 1)To find Recursive formulaSolution

Recursive formula is the formula A(n) = A(n - 1) + d

Based on the explicit formula we have:

A(n) = 8 - 6(n - 1) = 8 - 6n + 6 = 2 - 6nA(n - 1) = 2 - 6( n - 1) = 2 - 6n + 6 = 8 - 6n

The common difference is:

d  = A(n) - A(n - 1) = 2 - 6n - (8 - 6n) = 2 - 6n - 8 + 6n = - 6

The first term is:

A(1) = 2 - 6(1) = 2 - 6 = -4

So the recursive formula is:

A(1) = -4A(n) = A(n - 1) - 6

PLEASE HELP ME !?!?!?!?

Answers

I’m sorry but it’s shows a black screen

Which of the following lines is perpendicular to a line with a slope of 5?
y= 1/5x +5
y= 5x +5
y= -1/5x +5
y= -5x +5

Answers

Answer:

Y=-5x+5

Step-by-step explanation:

you just change it negative and if it was a fraction you'd change the sign the opposite still but.... flip the fraction :))

Is the following a function?

Answers

Answer:

yes

Step-by-step explanation:

you can times them all by 3

BRAINLIEST PLEASE

#3) Find the equation of the linear relationship represented in the table below.
x
у
-7.
5
-3
1
1
-3
5
-7

Answers

It’s alright the app is alright but it is a little bit more than a few other side effects and green beans in my life but I don’t think it’s alright you can start the game and start it
Other Questions
Describe the differences between the establishment and free clauses of the First Amendment 11) The Economy in the United States was very weak after WW1 true or false Was Pi-Ramses cold or hot? ExplainIf legit, I'll give brainiest! Which of the following would be the most effective way to say no?I cant...I dont want to...We might get in trouble...I dont think thats a good idea... The sharper the sound is the smaller the frequency of a vibrating body true or false The selling price for a used car at Smith's Auto Market was $17,700. Smith marks up the buying price by 18%. What was the buying price of the car?$ Suppose a triangle with angles measuring 30, 35, and 115 is translated 1 unit left and 1 unit up on a coordinate grid.Which would be the measure of an angle of the resulting triangle?25355565 Associate the items in column A to the items in column B.4:12 AM?Il est quatre heures vingt.4:20 A.M.12Il est quatre heures etquart.4:15 AM2Il est quatre heures etdemie.4:30 AM2Il est quatre heures douze.SUBMIT Please help! 50 points! Consider the equation 4t + 10 = 34(A) Write a real-world problem that can be solved using the equation.(B) What does t represent in your scenario? why is it important to have well formulated research Beth cooks 2 pounds of pasta. She serves 5 pound of pasta on each plate.What is the total number of plates Beth serves with the 2 pounds of pasta? What is the equation of a line when it is translated vertically down 4 units? Because in secession I see no remedy for the actual and present evils complained of, and because the prospective evils depicted so gloomily may never come; and if they should, the inalienable right to resist tyranny and oppression might then be exercised as well and as successfully as now. - "A Protest against the Ordinance of Secession, James G. Taliaferro What "prospective evils" is Taliaferro referring to? Check all that apply.Lincoln might bring an end to slavery and injure the economy. The federal government might interfere more in state issues. Lincoln might persecute Southern leaders who oppose him. Southerners' voices might not be heard by the federal government. Federal tariffs will likely be eliminated.Politicians from the South might be replaced by Northern politicians.Answer:A, B, and D Which idea about weavers presented In the excerpt from the Condition of working class in England in 1844 contrast with an idea in the excerpt from sybil or the two nations A. Weavers spun their own yardB. Weaver pit in few hours C. Weaver earned a good living D. Weaver had lived in rural areas [tex]\sqrt{x} 5*\sqrt{x} 8[/tex] write an equivalent expression for 6x + 18. Refer to the Newsela article Can Eating Less Meat Cool the Climate?The author of the PRO argument states that livestock are responsible for much of the worlds greenhouse gas emissions.Which approach does the author of the CON argument take to address this idea?Better farming practices will reduce greenhouse gas emissions from livestock more quickly than reducing meant consumption. The claim that livestock are responsible for any greenhouse gas emissions is an unproven theory.Studies by Carnegie Mellon University show that shifting to a plant-based diet will decrease greenhouse gas emissions.The findings of the GLEAM report on livestock and greenhouse gas emissions are questionable because the study was meant to influence the livestock industry. What geographical term was used to describe how Hannibal moved his 40,000 troops, 8,000 horses and 37 war elephants across to Spain, Ian has 3/4 of an hour to work on math problems before he leaves for track practice each problem takes 1/12 of an hour how many problems will ian be able to finish before leaving help, please! Describe some of the issues that Carranza faced when reforms were taking place. What document was created to enforce these reforms?