A system of equations and its solution are given below system

System A
Solution: (-2,1)

To get system B below, the second equation in a system A was replaced by sum of that equation and the first equation in system A mutiplied by -2.

System B
5x - y = -11

A) The second equation in system B is 7x = 30. The solution to system B will be the same as the solution to system A.

B) The second equation in system B is 7x = 30. the solution to system B will not be the same as the solution to system A.

C) The second equation in system B is -7x = 14. The solution to system B will be the same as the solution to system A.

D) The second equation in the system B is -7x = 14. The solution to system B will not be the same as the solution to system A.

Answers

Answer 1
It is b and I hope you have a wonderful day

Related Questions

what is the missing angle?

Answers

Answer:

the missing angle is 73

how do I write 3.1 x 10-⁶ +1.9 x 10-³ in scientific notation form?​

Answers

Answer: 1.9031 x 10^-3

Pleaseeeeeeeeeeeeeeeee solve this

Answers

Answer:

x=25

Step-by-step explanation:

All angles in a triangle add up to 180°, so add all the angles together

(2x+15)+(x+10)+(3x+5)=6x+30

So that means... 6x+30=180°

Get rid of the 30, so... 180-30=150

6x=150°

Divide each by 6

6x/6=x

150/6=25

x=25

Sorry if that was hard to understand!!

Which expression does the number line represent? A number line going from 0 to StartFraction 9 Over 4 EndFraction in increments of one-fourth. Arrows go from 0 to three-fourths, from three-fourths to six-fourths, and from six-fourths to nine-fourths.

Answers

Answer: 9/4 divided by 3/4

Step-by-step explanation: i took the test

Answer:

D

Step-by-step explanation:

2021 moment

HELP ME PLEASE 10 POINTS PLEASE PLEASE

Answers

Answer:

That picture is quite blurry. If you could add a new image in the comments, I could help you ASAP.

Step-by-step explanation:


If you divided $63.65 evenly among five children, how much would each
child get?

Answers

Answer$12.73

Step-by-step explanation:

$63.65/5(children) = $12.73

Answer:

$12.73

Step-by-step explanation:

$63.65/5=$12.73

What is the value of x ?
A. Square root of 216
B. Square root of 666
C. Square root of 441
D. Square root of 225

Answers

It’s obviously a 14.6969

Mrs adeolu spent 1/4 of her monthly income at a shopping mall 1/3 at a open market and 2/5 of the remaining amount at a mechanic workshop. if she had 225,000 naira left .
find her monthly income
find the amount spent at the open market

Answers

Answer: it's c

Step-by-step explanation:

What is the solution for -x+10<4??

Answers

Answer:

x=6

Step-by-step explanation:

subtract 10 on both sides you will get -x<-6 divide both sides by a negative 1 that is how you get 6

Identify the domain of these ordered pairs from least to greatest:

Answers

Answer:

(0,5)

Step-by-step explanation:

you are supposed to take the lowest and highest numbers of the x values and then that would be your domain

14 out of 22 students surveyed enjoyed playing baseball. If 308 students are surveyed, how many would you expect to say they enjoy playing baseball?

Answers

Answer:

124

Step-by-step explanation:

14 -22=8

8= the number of students that didn't like playing baseball

Somehow 8 = 800%

if you subtract 800%-308 it gives you -124

124 students don't like playing baseball

simplify the following expression: -4x^5y^4x x 5xy^7z^4

Answers

Answer:

-4x^12y^11z^4

Step-by-step explanation:

Let f(x) = 12 over the quantity of 4 x + 2 . Find f(−1). (1 point) a −6b −2c 2d 6

Answers

Answer:

f(-1) = -6

Step-by-step explanation:

f(x) = 12 / ( 4x+2)

Let x = -1

f(-1) = 12 / ( 4*-1+2)

     = 12 / (-4+2)

     = 12 / -2

    = -6

answer the questions lots of points

Answers

Answer:

Radius is half of diameter; the distance around a circle.

Step-by-step explanation:

Answer:

Radius is half of diameter  the distance around a circle

The sum of three numbers is 36. The first number is two times the second number, and the second number is
four less than the third number. What are the numbers?
o (8, 12, 16)
12<8, 16)
(12, 16,8)
o (16, 8, 12)

Please help out

Answers

Answer:

o (16, 8, 12)

Step-by-step explanation:

1st number: 8*2 =16

2nd number:12-4=8

3rd number: given

Answer:

16,8,12

Step-by-step explanation:

its 16,8,12 because:

8x2=16

12-4=8

youre welcome

Please please please please help

Answers

Answer:

y=1

Step-by-step explanation:

Answer:

y=1 I not the greatest at math but I am 100% sure this is correct. :)

use the slope formula (m=y2-y1/x2-x1) to find the slope of a line given two points. (1, 6) and (-3,0) (7,2) and (0,-5) (-7,-3) and (-6,-4)

Answers

Answer:

See Below

Step-by-step explanation:

A) 3/2

B) 1

C)  -1

Using the slope formula, and plugging-in values

We want to find the slopes of different lines, given that we know two points on each line.

We will get:

a) 3/2

b) 1

c) -1

Now let's see how to find the slopes.

We know that if a line passes through the points (x₁, y₁) and (x₂, y₂), then the slope can be computed as:

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

Using that equation we can find the slopes for this problem.

a) (1, 6) and (-3,0)

The slope will be:

[tex]a = \frac{6 - 0}{1 - (-3)} = \frac{6}{4} = \frac{3}{2}[/tex]

b) (7,2) and (0,-5)

The slope will be:

[tex]a = \frac{2 - (-5)}{7 - 0} = 1[/tex]

c)  (-7,-3) and (-6,-4)

The slope will be:

[tex]a = \frac{-3 - (-4)}{-7 - (-6)} = -1[/tex]

If you want to learn more, you can read:

https://brainly.com/question/16180119

I’m in 7th grade and falling behind in math. I have a 74 any suggestion to keep focused any free apps?

Answers

Answer:

study bunny

plantie

evernote

google calendar

bear

trello

Step-by-step explanation:

these are all free with premium versions

Answer:

well if you have to do some fractions and you dont know that answer and you need the answer right away and you need to show your work. Just look up fraction cauculator  or u can look up a mixed fraction cauculator. I hope this helps. :)

and the other thing that helps me stay focus is i listen to music it always helps me consatrats

ILL MARK BRAINLIST IF YOU GET IT RIGHT .which expression is equivalent to s - t?

Answers

Answer:

s(6)×t(6)

hope this helps

They are variables
Are there supposed to be answer choices?

What value of x is in the solution set of 9(2x + 1) < 9x – 18?
-4
-3
-2
-1

Answers

Answer:

c = -3

Step-by-step explanation:

What is the average rates of change of f(x) = x2-5 over the interval [-2,0].

Answers

it’s going to be 4.

if 1/4 of the pie was eaten what fraction of the original whole pie remains

Answers

Answer:3/4

Step-by-step explanation:

3/4 of the pie remains

Which of the following is true about the expression c5+(−9c2)+40c+7d7e3−5c3+4d?

A. There are no negative coefficients.

B. The coefficient of the first term is 0.

C. The coefficient of the third term is c

D. The coefficient of the fourth term is 7.

Answers

Answer:

D. The coefficient of the fourth term is 7.

Step-by-step explanation:

Took the test got it right

The true statement about  c⁵ + (- 9c²) + 40c + 7d7e³ - 5c³ + 4d is

D. The coefficient of the fourth term is 7.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, An expression c⁵ + (- 9c²) + 40c + 7d7e³ - 5c³ + 4d.

There are negative coefficients - 9.

The coefficient of the first term is 1.

The coefficient of the third term is 40.

The coefficient of the fourth term is 7 is true.

learn more about numerical expressions here :

https://brainly.com/question/29199574

#SPJ2

Write , or = to make the statement true. 9.008 ___ 9.08

Answers

Answer:

9.008 < 9.08

Step-by-step explanation:

9.08 is greater because you compare the number 9 and 9 are the same, 0 and 0 still the same, but then 0 and 8 you know eight is greater. was this helpful enough

Claire and Richard are both artists. Claire uses the polynomial 50x^2+250 to decide how much to charge.Richard uses the polynomial 49x^2+350 to charge how much to charge for his painting.In each polynomial x is the height of the paintings feet. To the nearest tenth what height will both Claire and Richard charge for the same amount for a painting?

Answers

Answer:

The height of the painting has to be 10 feet for both Claire and Richard to charge the same amount.

Step-by-step explanation:

The polynomial expression representing the charge for Claire's paintings is:

C = 50x² + 250

The polynomial expression representing the charge for Richard's paintings is:

R = 49x² + 350

Here x represents the height of the paintings feet.

Now compute the value of x such that both Claire and Richard charge the same amount as follows:

C = R

50x² + 250 = 49x² + 350

50x² - 49x² = 350 - 250

x² = 100

x = 100

Thus, the height of the painting has to be 10 feet for both Claire and Richard to charge the same amount.

What is a point.? endless flat surface,line that cross, an exact location a, straight path

Answers

Answer:

an exact location should be the right answer

Which of the following is true of the angle measures in the diagram below.

Answers

Answer:

B

Step-by-step explanation:

Answer:

it's B

Step-by-step explanation:

the sum of two interior angle of a triangle are always equal to the degree of the adjoined angle to the 3 angle

sorry i don't know how to explain this better

Which graph shows the solution to the inequality −2(2x+3)≤26?
pls help

Answers

Answer:

the answer is c

Step-by-step explanation:

Evaluate the following expression when x = -1, y = 2, z = -3, and
w = 4.
x² - y²

Answers

Answer:

-3

Step-by-step explanation:

-1*-1=1

2*2=4

1-4

=-3

Will give BRAINLIEST if right!

Find f(1/2) for f(x) = -3x^3 + 2x^2

Answers

F(x)= 1/8


Explanation:



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