Solve this system of equations using the substitution method.
y=3x-13
2x+4y=4

Answers

Answer 1

Step-by-step explanation:

2x+4(3x-13)=4

2x+12x-52=4

14x=4-52

14x=-48

x= -48/14

I think I went wrong somewhere ,so could someone please check

Answer 2
answer would be (4,-1)

Related Questions

plzzzzzz i will give u a thank u and 5 stars

Answers

Answer:

the answer is 440 square inches.

you just have to multiply all the numbers.

Answer:

B. 440 square inches

Step-by-step explanation:

all you have to do multiply 5x8x11 = 440

pls help me!!!!!!!!!!!!!

Answers

Answer:

42 and 58

97 and 3

Step-by-step explanation:

6^2.6^4 plz plz plz p​

Answers

Answer:

6^6 = 46656

Step-by-step explanation:

I’m assuming your saying: 6^2 · 6^4, which is equivalent to 6^6 because if two numbers have the same base (in this case it’s 6), then you just add the exponents: add the exponents 2 + 4 = 6  ⇒  6^6

6^6 = 46656

13x = 2(5x+3) solve for x

Answers

Answer:

13x=2(5x+3)

13x=10x+6

13x-10x=6

3x=6

x= 6/3

x=2

Answer:

x=2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

13x=2(5x+3)

13x=(2)(5x)+(2)(3)(Distribute)

13x=10x+6

Step 2: Subtract 10x from both sides.

13x−10x=10x+6−10x

3x=6

Step 3: Divide both sides by 3.

3x/3=6/3

         

            Answer:

               x=2

have a nice day!!!

HELP ASAP I will mark brainliest

Answers

Answer:

(0,5)

(2,1)

(4,-3)

Plz mark me brainliest. have a great day!

A rectangular tile measures 3 inches by 4 inches. What is the fewest number of these tiles that are needed to completely cover a rectangular region that is 2 feet by 5 feet

Answers

1 foot = 12 inches.

Convert the dimensions of the region to inches:

2 feet = 24 inches

5 feet = 60 inches

Area of region = 24 x 60 = 1,440 sq. In.

Area of tile = 3 x 4 = 12 sq. In.

Number of tiles needed = 1440/12 = 120

120 tiles are needed.

Determine the value of x

Answers

Answer:

x=8

Step-by-step explanation:

Because I have big brains.

Write the equation of the line that passes through the points (-6, -9) and (7, 7).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.

Answers

Answer:

[tex]\displaystyle y + 9 = \frac{16}{13} ( x + 6 )[/tex]

Step-by-step explanation:

The point-slope form of the equation of a line is:

y - k = m ( x - h )

Where m is the slope and (h,k) is a point through which the line passes.

Given a line passes through points A(x1,y1) and B(x2,y2), the slope can be calculated with the equation:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

We are given the points (-6,-9) and (7,7), thus the slope is:

[tex]\displaystyle m=\frac{7+9}{7+6}=\frac{16}{13}[/tex]

Now we apply the point-slope formula using the point (-6,-9):

[tex]\mathbf{\displaystyle y + 9 = \frac{16}{13} ( x + 6 )}[/tex]

This equation is expressed in the required format

The equation of the line passing through the given points is required.

The equation of the line is [tex]y=\dfrac{16}{13}x-\dfrac{21}{13}[/tex]

The points are [tex](-6,-9)[/tex] and [tex](7,7)[/tex]

The equation is

[tex]y-y_1=\dfrac{\Delta y}{\Delta x}(x-x_1)\\\Rightarrow y+9=\dfrac{7+9}{7+6}(x+6)\\\Rightarrow y+9=\dfrac{16}{13}x+\dfrac{96}{13}\\\Rightarrow y=\dfrac{16}{13}x-\dfrac{21}{13}[/tex]

The equation of the line is [tex]y=\dfrac{16}{13}x-\dfrac{21}{13}[/tex]

Learn more:

https://brainly.com/question/1581995?referrer=searchResults

© Colin invests £14100 into his bank account.
He receives 9.0% per year simple interest.
How much will Colin have after 5 years?
Give your answer to the nearest penny where appropriate.

Answers

Answer:

6350

Step-by-step explanation:

srry if it's wrong :(

if you know plzz tell me! asap
question number 8

Answers

Answer:D

Step-by-step explanation:

Write the polynomial as a
product of linear factors,
x^4-5x^2-36

Answers

9514 1404 393

Answer:

  (x +3)(x -3)(x +2i)(x -2i)

Step-by-step explanation:

The factoring to quadratics makes use of the fact that -36 = (-9)(4).

  x^4 -5x^2 -36

  = x^4 -9x^2 +4x^2 -36

  = x^2(x^2 -9) +4(x^2 -9)

  = (x^2 +4)(x^2 -9)

The form for factoring the difference of squares comes into play here. Of course -4 = (2i)^2.

  = (x^2 -(2i)^2)(x^2 -3^2)

  = (x -2i)(x +2i)(x -3)(x +3) . . . factored to linear terms

Please look at photo. Make sure to regroup and write your answer in simplest form.

Answers

Answer:

8 2/11

Step-by-step explanation:

Add the fractions 5/11 + 8/11 = 13/11

Then add the the whole numbers 4 + 3 = 7

then you 7 and 13/11

Simplify to get 8 2/11

The unlabeled graph shows the relationship between two customary units of measure. Only two pairs of units can be represented by the graph .
Describe the relationship for each pairs.

Answers

Answer:

e

Step-by-step explanation:

e

Analyzing an Error
A student simplifies (6b + 4r) – (2b + r) and says that the result is 4b + 5r. Explain the error and describe the correct steps to simplify the expression.

Answers

Answer:

4b +3r

The student did not subtract both terms in the second parentheses

Step-by-step explanation:

(6b + 4r) – (2b + r)

Distribute the minus sign to all terms in the second parentheses

6b + 4r – 2b - r

Combine like terms

6b -2b   +4r -r

4b +3r

The student did not subtract both terms in the second parentheses

Answer:

4b+3r

Step-by-step explanation:

(6b+4r)-(2b+r)

Distribute the negative symbol across the second set of parenthesis.

6b+4r-2b-r

Add like terms

4b+3r

Error: the student added r instead of subtracting it. They most likely only distributed the negative to the 2b.

HELPPPPP MEEEEEE, I WILL MAKE BRAINLYLST IF U GET IT RIGHT AND RESPOND QUICK

Answers

Answer:

Its C. or option 3

Step-by-step explanation:

How do I solve this using long division?

Answers

Answer:

You can't.

Step-by-step explanation:

When you divide it you get x+5.

Answer:

(x - 2)(x + 5)

Step-by-step explanation:

                     

                    x   +5

          ----------------------

  x - 2 | x² + 3x - 10

             x² - 2x   ↓

          ------------------------

                   5x    - 10

                   5x    - 10

           ------------------------

                              0 ← remainder = 0

quotient = x + 5

Then x² + 3x - 10 = (x - 2)(x + 5 )

How would this triangle be classified?

Answers

Isosceles right. Since it has two sides of the same length (congruent) and a right angle marking.

Answer:

d) isosceles right

Step-by-step explanation:

2 sides of the triangle are equal and one side isn’t and thats an isosceles triangle And one angle is equal to 90 degrees.

coin
coin
2.
You have a bag of 17 marbles.
Four are blue, 6 are green, 2 are
red, and the others are yellow.
What is the probability of drawing
a red marble, putting it aside, and
then drawing a green marble?

Answers

Answer:

3/68

Step-by-step explanation:

8. Graph the following linear equations.
a. y = 2x - 3

Answers

that should be what it looks like. I would just give you the points but I feel like it was easier to do this way

hii please help i’ll give brainliest if you give a correct answer tysm

Answers

Answer:

The correct answers are:

A

D

E

Step-by-step explanation:

6 faces

2 triangles

4 squares

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Which ordered pair does not represent a point on the square?

Answers

Answer:

D

Step-by-step explanation:

-2, 1 is not a point in the square but - 2, 2 is so the answer should be D -2,1

If my answer helped, kindly mark me as the brainliest!!

Answer:

3,2

Step-by-step explanation:

This is because if u look closely you can see that all of these escept the (3,2) will be on the square. Hope this helps

Jordan was given the expression 2x2^-3 x 2^-5 How should he write the expression as a fraction? Describe the exponent rules Jordan should use to simplify the expression

Answers

Answer:

[tex]2*2^{-3} * 2^{-5} =\frac{1}{128}[/tex]

Step-by-step explanation:

Given

[tex]2*2^{-3} * 2^{-5}[/tex]

Required

Write as a fraction

To do this, Jordan has to apply the following rules

Negative Exponent rule:

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

So, the expression is:

[tex]2*2^{-3} * 2^{-5} = \frac{2}{2^3 * 2^5}[/tex]

To solve further, we apply the product rule of exponent

[tex]a^m * a^n = a^{m+n}[/tex]

So, the expression is:

[tex]2*2^{-3} * 2^{-5} =\frac{2}{2^{3+5}}[/tex]

[tex]2*2^{-3} * 2^{-5} =\frac{2}{2^8}[/tex]

Evaluate the exponents

[tex]2*2^{-3} * 2^{-5} =\frac{2}{256}[/tex]

Divide the numerator and denominator by 2

[tex]2*2^{-3} * 2^{-5} =\frac{2/2}{256/2}[/tex]

[tex]2*2^{-3} * 2^{-5} =\frac{1}{128}[/tex]

determine whether it is a solution to u <8

Answers

Answer:

Actually, it is

Which of the following would NOT be
considered an outlet which would
need a "manager of communications"
position behind the scenes?

A. movies
B. Newspaper
C. Radio
D. Television

50 POINTS

Answers

I think it’s B but I’m not sure. It seems (most likely) to be newspaper

There are eight girls and four boys what is the probability of selecting a boy

Answers

Answer:OK

Step-by-step explanation:

The graph on the left represents a system of
equations.

How can the solution be located?

Which integers is the x-coordinate between?

Which integers is the y-coordinate between?

What is the solution approximated to the tenths
place?


Answers

The graph on the left represents a system of equations.

How can the solution be located?

✔ find the intersection

Which integers is the x-coordinate between?

✔ 0 and 1

Which integers is the y-coordinate between?

✔ 2 and 3

What is the solution approximated to the tenths place?

✔ (0.4, 2.8)

The required solutions are as follows,
(1) The intersection point
(2)  0 and 1
(3) 2 and 3
(4) [0.4, 2.8]

What are simultaneous linear equations?

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.


here,
(1)
How can the solution be located?
The intersection of the two lines is the point of the solution,

(2)
Which integers is the x-coordinate between?

The x coordinate lies between 0 and 1 shown in the graph,

(3)

Which integers is the y-coordinate between?
The y coordinate lies between 2 and 3 shown in the graph,

(4)
What is the solution approximated to the tenth place?
From the graph, it is given as [0.4, 2.8]

Thus, the required solutions are as follows,
(1) The intersection point
(2)  0 and 1
(3) 2 and 3
(4) [0.4, 2.8]

Learn more about simultaneous equations here:
https://brainly.com/question/16763389
#SPJ5

question 6 and the answers for the 4 blank boxes plz i give for 22 points

Answers

D- < G- = E- = and I can’t read i it is cut off


PLEASE Find the scale factor that was used
Will give brainliest!!
Check provided photo.

Answers

Answer:

1/4

Step-by-step explanation:

Scale factor = 3/12 = 1/4

i will give brainlist need help

Answers

Answer:

the answer is 20

Step-by-step explanation:

just solved it

Answer:

8 oranges

Step-by-step explanation:

12 apples in ratio 3:2

Simplify ratio

12/3 = 4

4 x 2 = 8 oranges

Factor the Algebraic expression 21a + 9​

Answers

Answer:

3(7a + 3)

Step-by-step explanation:

3 is the greatest common factor between 21 and 9

put 3 outside the parenthesis and divide both numbers by 3

3(7a + 3)

Answer:

3(7a+3)

Step-by-step explanation:

Find the common factor

3 multiplied by 7 equals 21, and 3 times 3 equals 9

Take the common factor out of the parenthesis

3( _a+_)

and put in 7 and 3 in the appropriate spots

3(7a+3)

double check

3 times 7 is 21, 3 times 3 is 9

3(7a+3)= 21a+9

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