WILL GIVE BRAINLIEST
Given the system of equations presented here:

4x + y = 4
2x + 6y = 24

Which action creates an equivalent system that will eliminate one variable when they are combined?

Multiply the first equation by −4 to get −16x − 4y = −16.
Multiply the second equation by −4 to get −8x − 24y = −96.
Multiply the first equation by −2 to get −8x − 2y = −8.
Multiply the second equation by −2 to get −4x − 12y = −48.

Answers

Answer 1

Answer:

Multiply the second equation by −2 to get −4x − 12y = −48.

Step-by-step explanation:

Given:

4x + y = 4 (1)

2x + 6y = 24 (2)

Multiply the second equation by −2 to get −4x − 12y = −48.

4x + y = 4 (1)

−4x − 12y = −48 (3)

Variable x can be eliminated by adding the equations

4x + (-4x) + y + (-12y) = 4 + (-48)

4x - 4x + y - 12y = 4 - 48

0 - 11y = -44

-11y = -44

Divide both sides by -11

y = -44/-11

= 4

y = 4

Answer 2

Answer: Multiply the second equation by −2 to get −4x − 12y = −48.

Step-by-step explanation:


Related Questions

Althea traveled 280 miles at a speed of 70 miles/hour. How much time did she take to cover this distance?

Answers

I think it would be four hours!! Let me know if it’s right or wrong! Have a good day!

A student records the sexes and breeds of a dog in animal shelter. Which kind of data is the student recording

Answers

Answer:

sexes and breeds duh

Step-by-step explanation:

Answer:

data of the dogs

Step-by-step explanation:

Is the relation a function?​

Answers

Answer:

No it is not because of the 3 it is repeating and it is not a function

Step-by-step explanation:

Choose a system and make a case for why you would
or would not choose to solve that system by substitution

Answers

Answer:

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other.

Step-by-step explanation:

I need help with my homework this is hard pls help thx!
z=m-x solve for x

Answers

Answer:

x = m - z

Step-by-step explanation:

z = m - x       add x to both sides

z + x = m - x + x

z + x = m            subtract z from both sides

z - z + x = m - z

x = m - z

Answer:

-z + m = x

Step-by-step explanation:

z = m-x

subtract the m from both sides

z-m = -x

you can't have a negative x so multiply everything by -1

-1(z-m = -x)

-z + m = x

Plsss help I’ll give u brainlest and 10 points

Answers

The answer would be B I hope this helps.

If my current slope is 7 what is the perpendicular slope?
A- -7
B-7
C- -1/7
D- 1/7

Answers

The correct answer is: B-7

Answer

-7

Step-by-step explanation:

opposite of 7

9. Which graph can be used to find the solution to the system of equations?
y = x-1
9y = 6x – 15

Answers

I used desmos and plotted the equations in. I would find which graphs cross one another at (-2,-3)

5x-3 /4=2x+3

Pls help

Answers

Answer:

x=-5

Step-by-step explanation:

5x-3/4=2x+3

First, multiply by 4

5x-3=4(2x+3)

Next, distribute.

5x-3=8x+12

Subtract 5x

-3=3x+12

Subtract 12

-15=3x

x=-5

Hope this helps :D

5x-3/4=2x+3
You do reseprocal/cross multiplication
5x-3=4(2x+3)
5x-3=8x+12
5x-8x=12+3
-3x=15
x=15/-3
x=-5

PLZ HELP I NEED THE ANSWER

Answers

Answer:

D I belive

Step-by-step explanation:

Answer:

i think its a

Step-by-step explanation:

21 boys and 14 girls. What is the ratio of girls to boys in Ms. Hawthorne's class?

Answers

Answer:

14 to 21

Step-by-step explanation:

reverse of 21 to 14 = 14 to 21

The perimeter of this rectangle is 156 cm.
What is the length and width of the
rectangle?
2x + 1
3x + 2

Answers

Answer:

x = 15

Therefore, the length and width are 31 and 47.

Step-by-step explanation:

Perimeter = (2x + 1) + (2x + 1) + (3x + 2) + (3x + 2) = 156

Simplified,

10x + 6 = 156

Subtract 6 from both sides, then divide by 10.

10x = 150

x = 15

To find the length and width, substitute 15 (the value of x) into the individual equations.

2(15) + 1 = 31

3(15) + 2 = 47

Evaluate (27)-2
-2/3
Express your answer as a fraction in simplest form.
The solution is

Answers

Note: The expression you have written sounds a little unclear, but I am assuming your expression is (27)-2-2/3.

So, I am solving the question based on assuming the expression as (27)-2-2/3, which would still clear your concept.

Answer:

The expression in the simplest form is:

[tex]\left(27\right)-2-\frac{2}{3}=\frac{73}{3}[/tex]

Step-by-step explanation:

Given the expression

[tex]\left(27\right)-2-\frac{2}{3}[/tex]

simplifying the expression in the simplest form

[tex]\left(27\right)-2-\frac{2}{3}[/tex]

[tex]=25-\frac{2}{3}[/tex]

[tex]=\frac{25\cdot \:3-2}{3}[/tex]

[tex]=\frac{73}{3}[/tex]

Thus, the expression in the simplest form is:

[tex]\left(27\right)-2-\frac{2}{3}=\frac{73}{3}[/tex]

What is the third term of the expression
4x+8y+12xy

Answers

Answer:

12xy

Step-by-step explanation:

Each term is separated by a function sign. In this case, an addition symbol.

FREE 9 = Tucson


...



..

Answers

Answer:

Tuscon. btw DIE MAX!

Step-by-step explanation:

Answer:yo the rule is

R% x P x T

which in this question is:

r%= 9%

p= 630

t=8

so

630 x 8 x 9% = 453.6

that's the final answer and in order to make sure make

630+453.6=1083.6

Step-by-step explanation:

What is the fifth term in the sequence 17.3, 34.3, 51.3, 68.3...?

A 77.7
B 85
C 85.3
D 89.7​

Answers

The fifth term in the sequence would be C.

Lashonda has bought 18 pounds of dog food. She feeds her dog 2/3 pounds for each meal. For how many meals will the food last? Write your answer in simplest form.

Answers

Answer:

she have feed 26 or 27

Step-by-step explanation:

I am confused it's 26 or27

The complex numbers z1 and z2 are graphed. Which point represents z1 – z2?

Answers

Answer:

A EDGE 2020

Step-by-step explanation:

I got it wrong twice and it gave me the answer :)

The point represents z₁ - z₂ will be A. Then the correct option is A.

What is a complex number?

The complex number is the combination of the real part and the imaginary part. Then the complex number is given as

⇒ a+bi

The complex numbers z₁ and z₂ are graphed.

The expression of z₁ and z₂ are given below.

z₁ = 4 – i

z₂ = –3 – 2i

Then the difference between z₁ and z₂ will be

z₁ - z₂ = (4 – i) – (–3 – 2i)

z₁ - z₂ = 4 – i + 3 + 2i)

z₁ - z₂ = 7 + i

Then the correct option is A.

More about the complex number link is given below.

https://brainly.com/question/10251853

#SPJ2

Help me pls ASAP thank you

Answers

The answer is A. X> -6 because the arrow shows which way the line is going

what’s the answer to (7−4n)⋅6

Answers

42 - 24n
I think and I hope this helps
simplified it would be 28n*6

PLZ help me with this :(


Part 1: Simplify √250


Part 2: Classify the number above as rational or irrational


Level 3 (Proficient: 85%)


Part 1: Simplify √150x*5


Part 2: Is the follow expression rational or irrational and why? 2√4+7


Level 4 (Distinguished: 100%)


Part 1: Simplify 13√750x*5 y*8


Part 2: Create two unique expressions each involving 1 square root and at least 1 operation (adding, subtracting, multiplying, dividing). Make 1 results in a rational number and the other result in an irrational number. Explain your reasoning for both.

Answers

Explanation:

Level 2

Part 1: √250 would be simplified to 5√10, because you need to find two factors that equal 250. 25 multiplied by 10 are two factors that you can utilize. Because 25 is a perfect square, it could be reduced to 5. Because 10 isn't a perfect square, you leave it as a radical.

Part 2: √250 is an irrational number because it's a non-terminating decimal and you cannot convert it into a fraction, so it wouldn't be rational.

Level 3

Part 1: √150x^5 would be simplified to 5x^2√6x. Again, find two factors that equal the product, 150. 25 multiplied by 6 are two factors that are useable. Just like the first question, 25 is a perfect square, so it can be reduced to 5. 6 is not a perfect square, so you would leave as a radical. Now, moving onto x^5. You can factor out x^4, because it's a perfect square. x^4 can become x^2. Move x^2 next to 5 and x would be left in the radical with 6.

Part 2: It's rational because 2√4 is simply just 2 x 2 because √4 is a perfect square. 4+7=11. 11 can be converted into a fraction, so it wouldn't be irrational.

Level 4

Part 1: 13√750x*5 y*8 would be simplified to 65x^2y^4√30x. Find two factors that equal 750, which are 25 and 30. You know the drill, 25 is reduced to 5 and 30 stays as a radical. Multiply 13 and 5 to get 65. Factor out x^4 out of x^5 to get x^2. x^8 is a perfect square that can be reduced to x^4.

Part 2: Two unique expressions are 4√16+3 and 5√8 x 34. √16 is a perfect square, so it can become 4. 4 x 4 is 16 and 16 + 3 = 19. 19 is a rational number. 5√8 is irrational, so right off the bat, you'll know it's an irrational expression.

[tex]\frac{1}{2} w -5\ \textless \ -2[/tex]

Answers

It would probably be W<6

The schools says they will take the students to see the movie with more than 30% of the votes. Which type of movie will the 7th graders be seeing? Explain your reasoning.
7th grade movie votes:
drama-3
comedy-8
action-4

Work:
Fraction Drama:
Fraction Comedy:
Fraction Action:
Convert to Percent:

Answers

So if everyone voted there would be only 15 ppl in the class. So 15= 100%
Now put that on the bottom for your fractions 3/15 8/15 4/15 because you need to find the percentage of the whole 7th grade.
Now to get each% divide the top number by the bottom.
3/15=.2
8/15=.53
4/15=.25
Then times each decimal by 100 to get the decimal converted to percentage.
So 53% voted for comedy.

can someone please help me with this thank you. Factor completely 64x2 – 49. (1 point) 0 (7x – 8)(7x + 8) O (7x – 8)(7x – 8) O (8x – 7)(8x - 7) O (8x - 7)(8x + 7)​

Answers

Answer:

Explanation:

64x^2 - 49
= (8x)^2 - 7^2
= (8x - 7)(8x + 7)

Answer:

(8x-7)(8x+7)

Step-by-step explanation:

64x²-49

(8x)²-7²

(8x+7)(8x-7) (using a²-b²=(a+b)(a-b)

Or

(8x-7)(8+7)

*BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST**

Determine whether or not each expression below is a perfect square. Explain why the expression is or is not a perfect square. If it is not a perfect square, find the perfect square that seems “closest” to the given expression and show how the perfect square can be adjusted to be the given expression.

1. A(x)=x^2+6x+13

2. A(x)=2x^2+8x+14

Answers

Step-by-step explanation:

These aren't a perfect square bec. 1 st and 3rd terms must be perfect square

A(X) = X^2+6X +13 be perfect square if 13 Changed to 9

= X ^2+6X +9

A(x)= 2X^2+8X +14 be perfect square

= 4X ^2+ 8X + 16

Josh made $242 for 11 hours of work.
At the same rate, how much would he make for 7 hours of work?

Answers

Answer:

If 11hrs= $242

   7hrs=7x242/100

             154

Josh will made $154

Step-by-step explanation:

Which pair shows equivalent expressions?

A. 2x + 10 = -2(x - 5)
B. -2(x + 5) = 2x -10
C. -2x - 10 = -2(x + 5)
D. -2(x - 5) = -2x - 10

Answers

Answer:

It's C

Step-by-step explanation:

When you multiply - 2 to what you have in the brackets you get - 2x - 10

Hope this helps, have a wonderful day

Please answer correctly !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!

Answers

Answer:The ratio is 1:5

Step-by-step explanation:

Answer:

it is 1:5 because if you divide both sides by 4, you get 1:5

Step-by-step explanation:

Kevin spends $11.25 on lunch every week during the school year. If there are 35.5 weeks during the school year, how much does Kevin spend on lunch over the entire school year?

Answers

Answer:

399.37

Step-by-step explanation:

multiply the amount each week by the amount of weeks to get the answer :)

WHOEVER KNOWS HOW TO DO THIS ( in the picture above ) AND COULD GIVE ME ALL THE ANSWERS, ILL VENMO YOU $55 DOLLARS !!
FOR ALGEBRA
JUST DM ME ON INSTA :
VANESSACAMTON

Answers

Answer:

The answer would be -6x - 4 + -4. hope this is accurate!

Step-by-step explanation:

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