Solve the system for x and y. 2y = x + 9 2y − 11 = 2x

Answers

Answer 1

The value of x is 2 and y is -7/2 in the equations 2y = x + 9 and 2y − 11 = 2x.

Define elimination method.

The elimination approach involves taking one variable out of the system of linear equations by utilizing addition or subtraction together with multiplication or division of the variable coefficients. Because it allows us to remove one of the variables and solve a more straightforward equation. The elimination approach may also be referred to as the addition method or the linear combination method in some texts. This is due to the fact that we'll be adding two equations together.

Given,

Equations,

2y = x + 9

2y − 11 = 2x

Rearranging variables and constant

Using elimination method,

x - 2y = 9

2x - 2y = 11

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

x = 2

Equating x = 2 in equation 1

x - 2y = 9

-2y = 9 - 2

-2y = 7

y = -7/2

The value of x is 2 and y is -7/2 in the equations 2y = x + 9 and 2y − 11 = 2x.

To learn more about elimination method, visit:

https://brainly.com/question/12090959

#SPJ1


Related Questions

which line has a constant proportionality of 4

Answers

Answer:

Line A

Step-by-step explanation:

Line A has a constant of proportionality (slope) of 4.

27 please I’ll try to give you brainliest

Answers

Answer:

Hexogen  

Step-by-step explanation:

HELP ME FIND THE OPPOSITE OF THIS PLEASE!!! I’ll mark brainliest

Answers

last one!!!!!!! its literally the opposite!!

Answer:

-3p^7 + 8p

Step-by-step explanation:

OPPOSITE: having a position on the other or further side of something; facing something, especially something of the same type.

2.

For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.


A. yes; y = -1/3x

B. yes; y = x – 3.3

C. yes; y = –3.3x

D. no

Answers

C. Because every y/x =-3.3 with no y-intercept.

Answer:

D. no

Step-by-step explanation:

im pretty sure its d. no

Please help, solve for x

Answers

Answer:

x = 7

Step-by-step explanation:

5(x + 5) = 10 x 6

5x + 25 = 60

5x = 35

x = 7

Find the surface area

Answers

Answer:

rectangular prism = cuboid

total surface area of a cuboid (tsa) = 2(lb+bh+hl)

l=length = 3cm

b=breadth = 6cm

h=height = 5cm

tsa = 2( 3*6 + 6*5 + 5*3 )

        2( 18 + 30 + 15 )

         2 * 63

       = 126 [tex]cm^{2}[/tex]

hope this answer helps you.....

Somebody help me pleaseee ???

Answers

Answer:

Step-by-step explanation:

Find the value of n in the figure below. Assume that the lines are parallel. What is the answer????​

Answers

Answer:

C

Step-by-step explanation:

75= to that equation

75-15=60/2=30

n=30

38=-5t²+40t+25 how would I solve for "t"?​

Answers

Answer:

Step-by-step explanation:

If DE is the midsegment of ABC what is the value of x AND y?

Answers

Answer:

3.) x = 4.5

4.) y = 7

Step-by-step explanation:

3 is an easier one than 4. By the triangle midsegment theorem, the midsegment of a triangle will be half of the base if it is parallel to it. AB is our base, so the equation is like this!

[tex]AB = 2(ED)\\9=2(ED)\\4.5=ED[/tex]

Now for 4, it actually is pretty easy. By the same triangle midsegment theorem, we automatically know that EC and EA are congruent, and CD and DB are also congruent. Meaning y equals 7.

But another way we can determine this (the long, kinda unecessary, but useful way) is through examining the relationship that triangles ABC and EDC have!  We know that they are similar triangles by SAS or AA. Meaning, their equation looks something like this...

[tex]4.5(7+y) = 9y\\31.5 + 4.5y = 9y\\31.5=4.5y\\7=y[/tex]

Like I said earlier, 7 is equal to y, but I figured I'd prove it so we are on the same page. Nothing wrong with double-checking ;)

Have a nice day. Feel free to Ask questions. Spread The Love.

does anyone wanna do my iready IM GIVING 77 POINTS OR MORE. i have 240 points in total sooooo yeah i can give a lot. its 8th grade iready.

Answers

Answer:

YAY

Step-by-step explanation:

I need help with this question please

Answers

Answer:

D

Step-by-step explanation:

Hector took 1 hour and 25 mintues to finish the test. (D)!

I need help please i don’t understand

Answers

9514 1404 393

Answer:

  no

Step-by-step explanation:

The dimensions will be those of a rectangular mirror if the diagonal measure is the hypotenuse of the right triangle with the given side lengths.

The Pythagorean theorem would require for some width w ...

  w^2 +24^2 = 30^2

  w^2 = 900 -576 = 324

  w = √324 = 18

A rectangular mirror with a length of 24 inches and a diagonal of 30 inches will have a width of 18 inches, not 16.

__

The attachment shows that a width of 16 inches is not consistent with a right-angle corner.

_____

Additional comment

If you reduce the given numbers to lowest terms by dividing them by 2, they become 8, 12, 15. That is, the two shortest sides are even and the longest is odd. Any set of integer dimensions for a right triangle must have an even number of odd numbers (0 or 2). These numbers cannot be a Pythagorean triple, so cannot make a right triangle.

The theoretical probability of spinning a 9 is_?

Answers

Answer:

The theoretical probability of spinning a sum of 9 is 4/36 or 1/9.

Step-by-step explanation:

Answer: 0%

Step-by-step explanation:

4 centigrams =
milligrams

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{4 centigrams = [blank] milligrams}[/tex]

[tex]\mathsf{4 \times \dfrac{10}{1}}[/tex]

[tex]\mathsf{= \dfrac{4}{1}\times\dfrac{10}{1}}[/tex]

[tex]\mathsf{=\dfrac{4\times10}{1\times1}}[/tex]

[tex]\mathsf{4\times10=\bf 40}\leftarrow\large\textsf{NUMERATOR}[/tex]

[tex]\mathsf{1\times1 = \bf 1}\leftarrow\large\textsf{DENOMINATOR}[/tex]

[tex]\mathsf{= \dfrac{40}{1}}[/tex]

[tex]\mathsf{\dfrac{40}{1}=40\div1=\bf 40}[/tex]

[tex]\boxed{\boxed{\large\textsf{Answer: 4 centigrams = \huge\bf{40 milligrams}}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

[tex]\frak{Amphitrite1040:)}[/tex]

What are the roots of the quadratic?
a) -3 and 0
b) -3 and 1
c) -1 and 3
d) -1 and -3

Answers

The answer is b) -3 and 1. (don’t take my word and wait for another answer) :)
Answer would be B) -3 and 1

a triangle has a 40° angle, a 120° angle and a side 2.5 centimeters in length. which of the following statements are true about the triangle?

Answers

Answer:

C

Step-by-step explanation:

A triangle is 180 degrees so 120+40 is 160

180-160=20

Help?!!!!!!!!!!!!!!!!!

Answers

It is 15.6 because you divide 82 and 5.25 then you get 15.6

Answer:

A.

Step-by-step explanation:

Divide 82 by 5.25 ([tex]5\frac{1}{4}[/tex] in decimal form). [tex]\frac{82}{5.25}=15.619047619047619047...[/tex], which can be rounded to 15.6 inches , so the answer is A. Hope this helps!

Please mark me as brainliest!

NI -
16
2
Which of the following is equivalent to
O 6
08
O 12
O 64

Answers

Answer:B

Step-by-step explanation:

The equivalent expression is 8.

Option B is the correct answer.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

[tex](16^{3/2})^{1/2}[/tex]

This can be written as,

= [tex]16^{3/2 \times 1/2}[/tex]

= [tex]16^{3/4}[/tex] ______(1)


Now,

16 = [tex]2^4[/tex] ______(2)

Now,

From (1) and (2),

= [tex]2^{4 \times 3/4}[/tex]

= 2³

= 8

Thus,

The equivalent expression is 8.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ7

What is the perimeter of the trapezoid

Answers

Answer:12

Step-by-step explanation:

np

Simply by dividing 3/5 (-4/9) ???!!

Answers

Hopes this helps:

Answer: -27/20

Please only answer this if ur not just guessing.
sally and belvedere are collecting shirt with a ratio of 4:10. if they collected 462 shirts altogether, how many shirts did sally collect?

Answers

Hey how you doing hope you have a wonderful day

Answer:

132

Step-by-step explanation:

the ratio for saly is 4 out of 14. so 4/14 is 0.28571429. and if you multiply that by the total collected shirts which is 462, you get 132 :)))

10 points

2. You weigh six packages and find the weights to be 29, 19, 69, 24, 64,

and 59 ounces. If you include a package that weighs 219 ounces, which

will increase more, the median or the mean?

Answers

Answer:

mean

Step-by-step explanation:

mean of six packages = (29+19+69+24+64+59)/6 = 44 ounces

Median of these six packages (19,24,29,59,64,69) = (29+59)/2 = 88/2= 44 ounces

Now, if we includes a package that weighs 219 ounces

The new mean = (29+19+69+24+64+59+219)/7 = 69

New median (19,24,29,59,64,69, 219) = 59

Hence, we say that the mean increases more than the median

What is the measurement of angle 2?
A- 20 degrees
B- 30 degrees
C- 70 degrees
D- 110 degrees

Answers

Answer:

∠ 2 = 70°

Step-by-step explanation:

∠ 2 and 70° are vertical angles and are congruent, then

∠ 2 = 70°

70 degrees since it was reflected

Help i dont know how to do it, pls explain also how did you get ur answer so i can gain information how to do it next time. Thank you​

Answers

You can found the coordinates along the sides MQ and NQ

The distance for MQ is 6, and for NQ is 8

Then you can just use the Pythagorean Thm since it is a right triangle

6^2+8^2=MN^2
36+64= MN^2
100= MN^2
MN=10

So it would be D

At a movie theater, a large popcorn cost $8.00 and small drinks cost $3.75 each. If you
buy d drinks and a large popcorn, what expression would represent your bill?

Answers

Answer:

large popcorn: $8

small drink: $3.75

= $8 + $3.75

= $11.75

Answer:

$11.75d

Step-by-step explanation:

add 8.00 and 3.75

you get 11.75 since U don't know how much it is for the drink, then U put d 11.75 so when U find d, you'll know that U can add it with your sum.

What is 1.154701 as a rational denominator?

Answers

Answer:

Convert to a mixed number by placing the numbers to the right of the decimal over

1000000

. Reduce the fraction. Then, convert the mixed number to an improper fraction by multiplying the denominator by the whole number and adding the numerator to get the new numerator. Place this new numerator over the original denominator.

1154701/1000000

Step-by-step explanation:

If x=12 and y=6x , what is the value of 8x2y ?

Answers

Answer:

13824 is the answer

Step-by-step explanation:

8*12*2*6*12

sub in the numbers
8(12)2(6x)
=192(6x)
=1152x

EFGH is a parallelogram. Find m

Answers

Answer:

70°

Step-by-step explanation:

Sum of angles in a parallelogram is 360°

Opposite angles are equal

2(16x - 2) + 2(8x + 14) = 360°

32x - 4 + 16x + 28 = 360°

32x + 16x + 28 - 4 = 360°

48x + 24 = 360°

48x = 360 - 24

48x = 336

x = 7

m< E = 8x + 14

Substitute for x

= 8(7) + 14

= 56 + 14

= 70°

Resuelva y responda a la pregunta: Andrés es mayor que su hermano Alex. Dentro de 3 años, la edad de Alex será la edad que tiene ahora Andrés y, dentro 9 años, la edad de Andrés será el doble de la edad que Alex tiene ahora. ¿Qué edades tienen los hermanos?

Answers

Answer:

Andrés tiene 15 años y Alex tiene 12 años.

Step-by-step explanation:

Como el enunciado dice que dentro de 3 años, la edad de Alex será la edad que tiene ahora Andrés puedes escribir una ecuación que indique que la edad de Andrés es igual a la edad de Alex más 3:

x=y+3, donde:

x es la edad de Andrés

y es la edad de Alex

Además, como se indica que dentro 9 años, la edad de Andrés será el doble de la edad que Alex tiene ahora puedes escribir una ecuación que indique que la edad de Andrés más 9 es igual a dos veces la edad de Alex:

x+9=2y

Ahora puedes reemplazar x=y+3 en x+9=2y y despejar y:

y+3+9=2y

12=2y-y

y=12

Finalmente, puedes reemplazar el valor de y en x=y+3 para encontrar el valor de x:

x=y+3

x=12+3

x=15

De acuerdo a esto, la respuesta es que Andrés tiene 15 años y Alex tiene 12 años.

Other Questions
Look at the pictures below. What type of arch, vault, or dome is each? Does the Supreme Court hear criminal cases? What is intelligent apps example? 1. CRM systems incorporate solicitation, sales, relationship management, and customer support applications. The term open source means that the source code of the program is not available to the public. 2. 3. Process effectiveness is the ratio of outputs to inputs. Employees might steal data, but Predictive tools help identify employees who 4. may steal data 5. The cache and main memory are nonvolatile, meaning their contents survive when power is off. 6. In order to keep track and organize your data, if you have single theme use a database while multiple themes use a spreadsheet. ERP systems do not have the ability to integrate various other systems and functions with them. 7. The cloud is elastic leasing of pooled computer resources over the internet. 8. 9. Attributes in a data model have Entities that describe the characteristics of the attribute. Order tracking and account tracking are business processes concerning the 10. operations department. 11. The primary purpose of an ERP system is integration A DBMS and database are synonymous terms that can be used 12. interchangeably. . Two companies can have the same domain name, but the IP addresses should be different. 2 which thesis statement would best fit a definition essay if the government decides to offer a subsidy to the solar industry to help people buy solar panels, that would be an example of . on the other hand, if the federal reserve took steps to expand the amount of credit available in the economy, that would be an example of . Which of these is the most important part of the proposal? What type of organization is a political action committee? What is the best definition of a phrase?A). A group of words with a subject and a verb; if removed, the sentence meaning is affected.B). A group of words with a subject and a verb; if removed, the sentence meaning is not affected.B). A group of words without a subject and a verb; if removed, the sentence meaning is affected.D). A group of words without a subject and a verb; if removed, the sentence meaning is not affected.PLEASE HELP. Analytically examine thi tatement ""Management tart from Planning and end up with controlling|"" After-dinner speeches are always presented after a dinner has been served for a large gathering assembled. What is the most common tooth infection? What did Zinn argue? how would you round 34.9279 if there was 3 sig figs and 4 sig figs What is the roots of 3x 10x 8 0? use the method of example 9.5.10 to answer the following questions. (a) how many 14-bit strings contain exactly six 1's? the number of 14-bit strings that contain exactly six 1's equals the number of ways to choose the positions for the 1's in the string, namely, . (b) how many 14-bit strings contain at least eleven 1's? (c) how many 14-bit strings contain at least one 1? (d) how many 14-bit strings contain at most one 1? to locate the first or next record that meets a specific set of criteria, which access action will meet that need? You will often hear people say that anyone can be funny. Learning how to be funny can be done, but it is not something that will come naturally to everyone. There are some tricks to the trade. In order to be funny you have to captive audience that wants to be entertained. For in stance, you are not golf to tell a joke of crack wise to your boss after you dropped the ball on a million dollar account this is not a wise time. However, a properly executed unexpected joke can set the of the party Real life situations are often the funniest things that you can offer up. Look at some of the most successful comedians in the world. Bill Costy, Richard Priot, Eddie Murphy and Kris Rock, all they really do is tell stories about their lives that make us fall out of our chairs Granted they have a way of doing it, but our lives supply us with your humor everyday. Another thing that evokes laughter is a little pain and suffering. This is a time honored traditional and is the root of slapstick humor. Quick wit is also something that you will find every useful when you are trying to be funny. Making a comment on the obvious with statement that reflects the direct opposite is always a bit. Think Chandler Bing on friends. His sarcasm would have the fans in stitches on every show. Does it take work to be funny? Sure it does, but it beat the heck out of being boring!1. The best title for the passage is _______ In order to be funny______ 2. According to the passage, which of the following is true?3. Which of the following statements is not true according to the passage?4. The phrase fall out of our chairs in paragraph three refers to ________________5. The purpose of the author when he writes the passage is to ________________ A mass is pulled on a frictionless inclined planeWhat is it's speed at the bottom of the incline? As ownership of the corporation is diffused, shareholders' ability to monitor managerial decisions: a. increases.b. decreases.c. remains constant. d. is eliminated.