— 2х + y = 0
— 7х + 3y = 2

Answers

Answer 1
answer : x=-2 and y=-4 or (-2,-4)
1. y=2x
-7x+3y=2

2. substitute
-7x+3(2x)=2

3. -7x+6x =2

4. -x=2
x=-2

5. sub into original equation
y=2 (-2)
y=-4

Related Questions

READING Etu has read 12 of the 32 chapters in his assigned book. He
plans to finish the book by reading c chapters each for 8 days until the
book is due. Which equation best represents the situation?
A. 12 - 8c = 32
B. 12 + g = 32
C. 12 + 8C = 32
D. 12 - Q = 32

Answers

Answer:

12 +g=32

Step-by-step explanation:

32 chapters

12 chapters read

-------

20 chapters must read

=>

12+g =32

g=32 - 12

g=20

The equation that best represents the situation will be 12 + 8c = 32

Based on the information, Etu has read 12 of the 32 chapters in his assigned book and he plans to finish the book by reading c chapters each for 8 days until the book is due.

Therefore, the equation that best represents the situation based on the information will be 12 + 8c = 32

Read related link on:

https://brainly.com/question/16257169

PLEASE HELP BRAINIEST WILL BE AWARD

Answers

Answer:

Your answer would be C. Hold on lemme check.... Yes its C.

Step-by-step explanation:

Hope I helped LOL

Kinsley's age is 7 years less than twice Jacob's age. If Kinsley is 13 years old, how old is Jacob? Choose the answer below that is a viable solution to this problem.

Answers

Answer:

10

Step-by-step explanation:

K = 13 J = ?

2J - 7 = 13

2J = 20

J = 10

Answer: 10

Step-by-step explanation:

What is the scale factor of 7/2?

Answers

its 6 Step-by-step explanation:

The scale factor of the drawing of the house given the scale of the drawing is 1cm : 0.29m.

What is the scale factor?

A scale drawing is a smaller image of a larger image or object. The scale drawing is usually reduced at a constant dimension.

The scale factor is the ratio of the dimension of the scale drawing to the original object. The scale factor is the measurement used to convert the larger image into a smaller version of the original object.

The scale factor is usually written in this format - 1, a colon (:), then the matching length on the original image. e.g. 1 : 10

The scale factor of the drawing = original dimensions/dimensions of the scale drawing

2 / 7 = 0.29

The complete question is given below.

Colette made a scale drawing of a house. The scale of the drawing was 7 centimeters = 2 meters. What is the scale factor of the drawing?

To learn more about scale drawings, please check: brainly.com/question/26388230

#SPJ2

Use the drop down menus to complete the sentences


Under


the Ottomans saw great advancement in the arts, architecture, and law. He also expanded the


empire into


The Ottoman Empire created a complex and efficient


v system


Ottoman sultans also promoted religious


) Intro


Done


0000) ODDDDD


5 of 11

Answers

Answer:

1. Suleyman 'The Magnificient'.

2. Eastern Europe

3. government

4. tolerance

Step-by-step explanation:

1- Under Suleyman 'The Magnificient', the Ottomans saw great advancement in the arts, architecture, and law.

2- He also expanded the empire into Eastern Europe.

3- The Ottoman Empire created a complex and efficient system government.

4- Ottoman sultan also promoted religious tolerance.

What is the domain of the quadratic function given by f(x) = 2x2 + 2x - 4?
A) [0, +∞)
B) all real numbers
C) all negative real numbers
D) all positive real numbers

Answers

Answer: C

Step-by-step explanation:

Answer:

its B just took test

Step-by-step explanation:

67,240,000 in scientific notation

Answers

Ans: 6.724*10^7

Hope this can help

Plz help I will mark you brainlist plz ​

Answers

Lucia picked 7 apples in 1 minute

= 63÷ 9

= 7

So the correct answer option is b 7.

A square patio has an area of 120 square feet. How long is each side of the patio to the nearest tenth?

help!!

Answers

Answer:

20√3

Step-by-step explanation:

A = Area

s = no of sides

A =120 feet^2

s =?

[tex]A =s^2\\\\120=s^2[/tex]

Square root both sides of the equation

[tex]\sqrt{120} = \sqrt{s^2} \\\\20\sqrt{3} = s\\\\s = 20\sqrt{3} \:or \:34.6[/tex]

Answer:

11

Step-by-step explanation:

Area=side×side

120=side^2

side=√120

side=10.95

side=11

I kinda need help on pentagram May someone please help me I don’t understand this.

Answers

you just have to figure it where you can place 2 solid lines and get 10 triangles ( i can only get 9). Think about the pentagon in the middle of the triangles and see if somehow you can create more triangles using only the two straight lines.

If f(1) = 5, then (1,5) is an ordered pair of function f. True False​

Answers

Answer:

I think true

Step-by-step explanation:

i am not sure but f(1)=5 hereA=1 andB=5 so i belif this is true function

Answer:

yes it is true

Step-by-step explanation:

Find the length of the given segments and determine if they are congruent Simplify DE and RS

Answers

Answer:

The answer is below

Step-by-step explanation:

The complete question is contained in the image.

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

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

Point D is at (7, 0) and E at (0, -2) hence the distance between the two points is:

[tex]|DE|=\sqrt{(0-7)^2+(-2-0)^2}=\sqrt{49+4}=\sqrt{53}=7.28[/tex]

Point R is at (-7, -7) and S at (3, -3) hence the distance between the two points is:

[tex]|RS|=\sqrt{(3-(-7))^2+(-3-(-7))^2}=\sqrt{100+16}=\sqrt{116}=10.77[/tex]

Since |RS| ≠ |DE|, therefore they are not congruent

What is the solution set of the equation
3 – 2x] = 5?
(-1, 4)
B. {1, –4]
C. {-1}
D. [4]

Answers

Answer:

[C] -1

Explanation:

3 - 2x = 5

Subtract 3 from both sides

3 - 2x - 3 = 5 - 3

Simplify

-2x = 2

Divide both sides by -2

-2x / -2 = 2 / -2

x = -1

The product of 4 and a number plus 17 is 15

Answers

Answer:

the answer is -0.5.

Step-by-step explanation: First subtract 17 from 15 to know what u need to get. Know that u get -2, we have to figure out what to do to get -2 out of 4. First to get positive 2, multiply by 0.5, than since we need to get negative 2, add a negative in front. Hence, the answer is -0.5 .

your equation would read

4•x+17=15

so 4 times what plus 17 is 15?

4•-0.5+17=15

James is 6 times older than his friend Zach . If Zach added 8 to his age and multiplied this sum by 3 . Write an equation that can be used to solve for zachs age in the box below , use Z as the variable .

Answers

Given that:

James is 6 times older than his friend Zach, if Zach added 8 to his age and multiplied this sum by 3 .

To find:

The equation that can be used to solve for zach's age.

Solution:

Let the age of zach be Z.

Zach added 8 to his age = Z+8

And multiplied this sum by 3 = 3(Z+8)

James is 6 times older than his friend Zach = 6Z

Now,

[tex]6Z=3(Z+8)[/tex]

[tex]6Z-3Z=24[/tex]

[tex]3Z=24[/tex]

Divide both sides by 3.

[tex]Z=8[/tex]

Therefore, the required equation is [tex]6Z=3(Z+8)[/tex] is age of zach is 8 years.

Evaluate the following expression. 5^-1/5^0

Answers

Answer: 0.2

Step-by-step explanation:

YOU KNOW WHAt , it okay if u don't answer I give up I've been asking for help and hardly people that are answering .. but just help if u can

Answers

Answer:

18. A' (0, 0)

     B' (0, -4)

     C' (5 ,-5)

     D' (5, -1)

19. lines of symmetry:

Letter G- no lines

Letter E- horizontal through the middle line

Letter O- vertical and horizontal

Letter M- vertical through the middle

Letter T- vertical through the middle

Letter R- no lines

Letter Y- vertical through middle

20.

Figure 1- 4

Figure 2- 8

Figure 3- 5


Find the x-intercent(s) and the coordinates of the vertex for the parabola y = -x + 2x + 15. If there is more than one x-intercept, separate them with commas

Answers

Answer:

1

Step-by-step explanation:

Hannah pays $39 per month for her cellular phone which includes 1 hour of use.
After the first hour, she pays 20% per minute. How much will her monthly bill be
if she uses her phone 2.5 hours?

Answers

Answer:

$57

Step-by-step explanation:

1h = $39

so the first hour costs $39

2.5h -1h =1.5h=90mins

0.20x90=18

so 1h30mins after the initial 1h cost $18

so all together it costs $18+$39= $57


find the midpoint of the line using the midpoint formula.
Midpoint of AB:______

Answers

Answer: MP=(1,1)

Step-by-step explanation:

[tex]MP= (\frac{x_1+x_2}{2})(\frac{y_1+y_2}{2})[/tex]

[tex]MP= (\frac{-2+4}{2})(\frac{-3+5}{2})[/tex] -2+4=2  -3+5=2

[tex]MP= (\frac{2}{2})(\frac{2}{2})[/tex] 2/2=1

[tex]MP= (1,1)[/tex]    

Answer:

(1,1)

Step-by-step explanation:

please just answer this and explain how to solve...i’m not grasping the work :/

Answers

[tex]\bf Step-by-step~explanation:[/tex]

We are given that BA is perpendicular to BD, so that must mean that m∠ABD is a right angle, or 90º. This means: (8x - 10) + (4x + 52) = 90º, since both of the angles add up to become a right angle. We have to solve for x in order to find m∠CBD.

PART 1

[tex]\bf Step~1:[/tex]

Equation: (8x - 10) + (4x + 52) = 90

Let's add the like values together first.

[tex]\bf 8x+4x=12x\\-10+52 = 42[/tex]

[tex]\bf 12x+42=90[/tex]

[tex]\bf Step~2:[/tex]

Let's subtract 42 from both sides of the equation to isolate the variable we are solving for, x. Our goal is to isolate it completely to get a value that is equal to x.

[tex]\bf12x+42(-42)=90(=42)\\12x=48[/tex]

[tex]\bf Step~3:[/tex]

Divide both sides by 12 to get our final answer for x.

[tex]\bf\frac{12x}{12} =x\\\\\frac{48}{12}= 4\\\\x=4[/tex]

PART 2

Now that we have x, we simply plug it into our equation for m∠CBD.

[tex]\bf Step~1:[/tex]

[tex]\bf4x+52\\4(4)+52[/tex]

[tex]\bf Step~2:[/tex]

Multiply 4 and add 52.

[tex]\bf 4*4=16\\16+52=68[/tex]

[tex]\large\boxed{\bf Our~final~answer: mCBD=68}[/tex]

Find the midpoint of the segment with endpoints at A(3, 11) and B(7,3).
(5,7)
(7,5)
(3,9)
(9,3)

Answers

Answer:

The answer is

(5,7)

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

[tex]M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )[/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

A(3, 11) and B(7,3)

The midpoint is

[tex]M = ( \frac{3 + 7}{2} \: , \: \frac{11 + 3}{2} ) \\ = ( \frac{10}{2} \: , \: \frac{14}{2} )[/tex]

We have the final answer as

( 5 , 7)

Hope this helps you

Ashley's salary was $30,000 per year. If it went up by $1,500 What is the percent increase?

Answers

Answer: 1.5% increase

Step-by-step explanation:

Vote me brainliest!!!

Tyrone makes a scale drawing of his backyard. The scale from the backyard to the drawing is 2 ft to 1 in. The width of the patio on the drawing is 8 in. What is the width of Tyrone's actual patio?

Answers

Answer:

16:8 width

Step-by-step explanation:

Jori has 7 boxes of books, with each box holding the same number of books. He has 126 books in all. How many books are there per box? 10 books per box 18 books per box 27 books per box 28 books per box​

Answers

Answer:

18 because 126 divided by 7 is 18.

Step-by-step explanation:

Answer:

18 books per box

Step-by-step explanation:

I took the Understanding Unit Rates test. Have a nice day

Please help meeeee!!!! Rewrite each number in exponential notation using 2 as the base: 8= 16= 32= 64= 128= 256=

Answers

Step-by-step explanation:

[tex]a^n=\underbrace{a\cdot a\cdot a\cdot...\cdot a}_{n}[/tex]

[tex]8=2\cdot2\cdot2=2^3\\\\16=2\cdot2\cdot2\cdot2=2^4\\\\32=2\cdot2\cdot2\cdot2\cdot2=2^5\\\\64=2\cdot2\cdot2\cdot2\cdot2\cdot2=2^6\\\\128=2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2=2^7\\\\256=2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2=2^8[/tex]

A store sells two brands of hand lotion. Brand X costs $3.25 for 5 fluid ounces.

Brand Y costs $6.00 for 8 fluid ounces. How much less per fluid ounce does

Brand X cost than Brand Y? Show your work.

Answers

Answer:

[tex]\frac{3,25}{5}=0,65 \\[/tex] for brand x for 1 fluid ounces

[tex]\frac{6}{8}=0,75[/tex] for brand y

0,75-0,65=0,1

Brand x costs $0,1 less

Step-by-step explanation:

Answer:

0.10 less

Step-by-step explanation:

First you need to find how much for one fluid ounce, so for Brand X you would divide 3.25 by 5 to get 0.65 and for Brand Y 6.00 divided by 8 to get 0.75. Now you know how much for 1 ounce of each brand so next you just have to subtract 0.65 (Brand X) from 0.75 (Brand Y) to get that Brand X costs $0.10 less than brand Y.

Hope this helps :)

can anyone help me with this geometry question?

Answers

Answer:

49-31 gets you da answer

yw

Step-by-step explanation:

g (x) = 2/5x +4 NEED AWNSER

Answers

Answer: 5

Step-by-step explanation:

Adding a whole to a fraction

Rewrite the whole as a fraction using  5  as the denominator :

        4       4 • 5

   4 =  —  =  —-   = 5

        1          5  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

hope this helps

plz mark brainlesit

3.) Which is more: $2,600 semímonthly OR $1.400 biweekly?
I

Answers

Answer:

1,400

Step-by-step explanation:

biweekly has more money ( assuming that 1.400 meant 1,400)

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