Select the correct answer.
A system of equations and its solution are given below.

System A





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

System B



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 = 14. The solution to system B will 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 not be the same as the solution to system A.
D.
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.

Answers

Answer 1
Okay so I really could be wrong but ima say C it makes most sense to me

Related Questions

WILL MARK BRAINLIEST ONLY HAVE 30 MINUTES

Answers

Answer:

Step-by-step explanation:

the answer is 21

Answer:

its 21

Step-by-step explanation:

you add 9 +12= 21 inches

The students at Midtown Middle school sold flowers as a fundraiser in September and October. In October, they charged $1.50 for each flower. The October price was a 20% increase of the September price. Part A: What was the price of the flowers in September? Part B: The seventh-grade class earned 40% of the selling price of each flower. In September, they sold 900 flowers. In October, they sold 700 flowers. Did they earn more money in September or October? How much more?

Answers

Let the price of flowers in September be x, then (100 + 20)/100 * x = $1.50
120/100 * x = $1.50
1.2x = $1.50
x = $1.50/1.2 = $1.25
The price of flowers in September is $1.25

Total money realised in September = $1.25 x 900 = $1,125
40% earned = 0.4 x $1,125 = $450

Total money realised in October = $1.50 x 700 = $1,050
40% earned = 0.4 x $1,050 = $420

The class earned more money in September and they earned $30 more than in October.

Buddy and Michael get into a
snow fight with some boys on the
way home from school. It seems
as though Buddy can throw 4
times as many snowballs as the
boys can. If Buddy throws 1200
snowballs, how many did the boys
throw? Write an equation and
solve.

Answers

Answer:

1500

Step-by-step explanation:

1200/4=300

1200+300=1500

Answer:

This means the boys throw 300 snowballs while Buddy throws 1200 snowballs

Step-by-step explanation:

Equations

Let's call

x = number of snowballs the other boys throw.

4x = number of snowballs Buddy throws.

We know Buddy throws 1200 snowballs, thus

4x = 1200

Divide by 4:

x = 1200/4

x = 300

This means the boys throw 300 snowballs while Buddy throws 1200 snowballs

HELP PLEASEEE !!! 50 POINTS

Answers

Answer:

haha

Step-by-step explanation:

first off thats not 50 points

Answer:

Step-by-step explanation For the first on 5 and -4 all u do is divide y over x so it wpuld be -4/5 which would be -0.8

just keep doing the process of dividing y over x

the second 1 would be 0/3 which is 0

just keep doing this process

given that y varies inversely with x, and y = 100 when x + 3, find x if y = 60

Answers

Step-by-step explanation:

xy = k, where k is a real constant.

y = 100 when x = 3, therefore (3)(100) = k.

=> k = 300.

Hence when y = 60, x(60) = (300), x = 5.

Answer:

cchhgfhhfhçhuyffffffcghhhh

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

1) find the gradient of the graph so change in y divided by change in x so 2/3
2) The point the graph crosses the y axis is the y-intercept so +1
3)slope means gradient in the equation y=Mx+c m is the gradient therefore the answer is 1/2
4) y=mx+c the y intercept is c therefore -1
The slope of the graphed line

Choose two points and substitute them into the formula y2-y1 divided by x2-x1

(3,0) and (0,1)

1-0 divided by0-3 which is 1/-3

The slope of the graphed line is 1/-3

The y intercept of the graphed line is (0,1)

The slope of the equation is 1/2

The y intercept of the equation is (0,-1)

55/(4+1)+3-three cubed​

Answers

Answer:38

Step-by-step explanation:

Answer: 14

Step-by-step explanation:

First you have to do 4+1=5, then you do 55/5 and get 11, once you do that you do 11+3=14.

  I hope that this helps!!!

Figure ABCD is a kite. Find the
value of x.

Answers

Answer:

x=5

Step-by-step explanation:

i think you posted this question twice, but here it is:

in order for this figure to truly be a kite, AD and AB have to be equal.

So:

4x=x+15

now we must solve the equation:

3x=15

x=5

There are 9 times as many cubes in the black bag as in the green bag. The green bag has 12 cubes. How many cubes are in the black bag?

Answers

Answer:

108 cubes

Step-by-step explanation: 9 times 12 equals 108

9 • 12 = 108 cubes

Answer:

108

Step-by-step explanation:

9×12=108

That's it!

plzzzzzzz help help help. A sum of money put out at compund interest in increased by Rs.180 at the end of first year and by Rs. 188.10 at the end of second year. find out the sum and rate of interest​ . plzzzzz help​

Answers

Answer:

This is the answer. Do it fast. All the best

The price of some Beats by Dre were reduced from $125 to $100. By what percentage was the price of the Beats reduced?

Answers

Answer:

10% of 100=10

20%of 100=20

5% of 100=5

50%=50

125

La serie de el 2 12 32 62 al 1902

Answers

Answer:

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determine the value of x for which r parallels s. then find measure of angles one and two

measure of angle one= 30-4x
measure of angle two= 50-44x ​

the value for which r parallels s is .....

measure of angle one.....
measure of angle two ......

Answers

Answer:

[tex] m\angle 1 = 28\degree

m\angle 2 = 28\degree [/tex]

Step-by-step explanation:

[tex]\because line\: r || line\: s\\

m\angle 1 = m\angle 2\\(corresponding \: \angle s) \\

\therefore 30 - 4x = 50 - 44x\\

\therefore 44x - 4x = 50 - 30\\

\therefore 40x = 20\\

\therefore x = \frac{40}{20}\\

\therefore x = 0.5\\

m\angle 1 = 30 - 4x = 30 - 4(0.5) = 30 - 2 \\

m\angle 1 = 28\degree \\

\implies m\angle 2 = 28\degree [/tex]

Find the equation of the graphed line.

a. y= - 6x-7
b. y = 6x -7
c. y = - 6/7 × -6
b. y = - 7/6x - 7 ​

Answers

The last one hope this helps
Y=Mx+b b is always on the y intercept so that canceled out c and b is canceled out Bc the Mx is negative and it can’t just be 6 Bc there is no point on where it clear like right on the point if u can understand that so that just leaves u with d y=-7/6x-7

Joey makes 20 less dollars than Jeremy. If they make a total of $72, how much does
Joey make? You must write two let statements and an equation to solve this problem.

Answers

Answer:

Joey makes 52 dollars

Step-by-step explanation:

Compare continuous functions f, g, and h, and match the statements with the function they best describe.

Drag each description to the correct location on the table.

Answers

Answer: see attached

Step-by-step explanation:

 From the given properties of the functions,

Function 'f' is decreasing in the longest interval [-0.8, 0.6]Lowest y-intercept → y = -1 (function g)Highest y-intercept → y = 3 (function h)Function 'h' in increasing in the longest interval → (-∞, ∞)

 Functions given in the picture are 'f', 'g' and 'h'.

From the graph given for function 'f',

y - intercept = 1

Increasing in the interval → (-∞, -0.8] and (0.6, ∞)

Decreasing in the interval → [-0.8, 0.6]

From the table given for the function 'g',

Decreasing in the interval → [-2, 2]

y-intercept = -1

For function 'h',

h(x) = 4x³ + 3

Table of the input-output values for function will be,

x           h(x)

-2         -29

-1            -1

0            3

1             7

2           35

Therefore, function 'h' will increase in the interval → (-∞, ∞)

y-intercept → y = 3

Therefore, from these properties of the functions we conclude,

Function 'f' is decreasing in the longest interval [-0.8, 0.6]Lowest y-intercept → y = -1 (function g)Highest y-intercept → y = 3 (function h)Function 'h' in increasing in the longest interval → (-∞, ∞)

Learn more,

https://brainly.com/question/13508893

2,704 rounded to the nearest thousand

Answers

Answer:

3000,

Step-by-step explanation:

5 or above round up, 4 and below keep it the same

Can someone help me with this please

Answers

Answer: 19

Step-by-step explanation:

[tex]a-4b\\\\=7-4(-3)\\\\=7-(-12)\\\\=7+12\\\\=19[/tex]

who wants brainlest?

what is 5 + 5
(hardest question in the galaxy)

what is the name of that oger in shrek?
(very hard)

what is the name of the most popular web browser?
hint: not internet explorer
(starts with a g)

bonus question:
(heart)
who is the 2nd most popular robl0x yt channel
(pls sub to him)
and pewds

if you want to compete in the next brainlest competition, you could friend me or, follow my questions to keep yourself updated...........

Answers

it doesn’t let me type the correct answer i’m confused

Answer:

10

shrek

g00gle

denis or flamingo?

Step-by-step explanation:

The weight of body is 420 N. Calculate is mass
0.34 m 11.67,000 g 1,72.800 s 1 day
LOSSARY
the ratio of mass and volume
the rate of change of velo
the rate of displacement of be​

Answers

Answer:

42.857 kg

Step-by-step explanation:

Given that :

Weight of body = 420N

Recall : Weight (W) = mass(m) * acceleration due to gravity(g)

Thus ;

Mass, m = Weight, W / acceleration due to gravity

Acceleration due to gravity is a constant, g =, 9.8 m/s²

Mass = 420N / 9.8m/s²

Mass = 42.857142kg

In a large population, 61 % of the people have been vaccinated. If 3 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated

Answers

Answer:

0.94

Step-by-step explanation:

Computation for what is the probability that AT LEAST ONE of them has been vaccinated

Based on the information given this is a binomial Distribution therefore Let;

Number of people represent n= 3 people

Population represent p = .61

Using this formula

Probability(AT LEAST ONE vaccinated) = 1 - [ 1*(1-Population vaccinated^People randomly selected)]

Let plug in the formula

Probability(AT LEAST ONE vaccinated) = 1 -[1*(1-.61^3)]

Probability(AT LEAST ONE vaccinated) = 1 - [1×(1-.61^3)]

Probability(AT LEAST ONE vaccinated) = 1 - (1×.39^3)

Probability(AT LEAST ONE vaccinated) = 1 - 0.059319

Probability(AT LEAST ONE vaccinated) = 0.940681

Probability(AT LEAST ONE vaccinated) = 0.94

Therefore the probability that AT LEAST ONE of them has been vaccinated is 0.94

Explain why Josue is correct?

Answers

Because she did the math :)

Suppose a small cannonball weighing 16 lb is shot vertically upward with an initial velocity
v_0 = 300v 0​ =300 ft/s.(a) Suppose air resistance is ignored. If the positive direction is upward, then a model for the state of the cannonball is given by d^2s/dt^2 = -gd 2 s/dt 2 =−g.Since ds/dt = v(t)ds/dt=v(t) the last differential equation is the same as dv/dt = -gdv/dt=−g, where we take g = 32g=32 ft/s^2 2 . Find the velocity v(t)v(t) of the cannonball at time tt.(b) Use the result obtained in part (a) to determine the height s(t)s(t) of the cannonball measured from ground level. Find the maximum height attained by the cannonball.

Answers

Answer:

a) v(t)=-32t+300

b) s(t)=-16t^{2}+300t

[tex]s_{max} =\frac{5625}{4}ft=1406.25 ft[/tex]

Step-by-step explanation:

A good way to start solving this problem out is to draw a diagram of the situation (see attached picture).

a)

For part a, we need to find an equation for the velocity of the cannon ball. We have an equation of its acceleration:

[tex]a=\frac{dv}{dt}=\frac{d^{2}s}{dt^{2}}=-g[/tex]

we know that:

[tex]g=32 ft/s^{2}[/tex]

so we got the following differential equation:

[tex]\frac{dv}{dt} =-32[/tex]

we can find the function for velocity by integrating, so we get:

[tex]v =\int\limits {-32} \, dt[/tex]

which yields:

v(t)=-32t+C

we need to find the value of C. The problem tells us that v(0)=300 ft/s so we can use this to find c:

300=-32(0)+C

so

C=300

therefore the equation for velocity is:

v(t)=-32t+300

b)

For part b) we need to find an equation for the height of the cannonball. We know that:

[tex]v=\frac{ds}{dt}[/tex]

so:

[tex]\frac{ds}{dt}=-32t+300[/tex]

so we can integrate this equation to find the function for height of the ball, so we get:

[tex]s=\int\limits {-32t+300} \, dt[/tex]

which yields:

[tex]s(t)=-\frac{32t^{2}}{2}+300t+C[/tex]

which can be simplified to:

[tex]s(t) =-16t^{2}+300t+C[/tex]

We know the height is measured from the ground level, this means that s(0)=0 so we can find C with this information:

[tex]0=-16(0)^{2}+300(0)+C[/tex]

so C=0, therefore our equation is:

[tex]s(t)=-16t^{2}+300t[/tex]

in order to find the maximum height attained by the cannonball, we can set the velocity function equal to zero and solve for t, so we get:

0=-32t+300

-32t=-300

[tex]t=\frac{300}{32}[/tex]

[tex]t=\frac{75}{8} s[/tex]

and substitute it into our position function so we get:

[tex]s(\frac{75}{8})=-16(\frac{75}{8})^{2}+300(\frac{75}{8})[/tex]

which yields:

[tex]s_{max} =\frac{5625}{4}ft=1406.25 ft[/tex]

Which country boarders the Horn of Africa in the West?​

Answers

The answer is Ethiopia.

There are 4 countries in the horn of Africa.They are Eritrea,Ethiopia,somalia and Djibouti

solve the equation for x
−6x+2=8

Answers

Answer:

x = -1

Step-by-step explanation:

−6x+2=8

Subtract 2 from each side

−6x+2-2=8-2

-6x = 6

Divide by -6

-6x/-6 = 6/-6

x = -1

Answer:

X=-1

Step-by-step explanation:

Perfrom inverse operations

subtratc 2 fro m both sides

-6x=6

x=-1

5. If a = -6 and b = 7, then 4a(3b+5)+2b=?
A. 638
B. -485
C. 850
D.-610

Answers

Answer:

D.-610

Step-by-step explanation:

-6 ×4 =-24

7 times 3 =21

Can someone help solve this please

Answers

Answer:

9

Step-by-step explanation:

Answer:

Step-by-step explanation:

(x+3)/8 = (x+6)/10

x+3 = 8(x+6)/10

x+3 = 4(x+6)/5

x+3 = (4x+24)/5

x +3 = 4x/5  + 24/5

x - 4x/5 =  (24/5)-3

x/5 = 9/5

x = 9

An aquarium holds 12 liters of water.

How many aquariums can we fill with 48 liters of water?

Include fractions of aquariums, if applicable.

Answers

Answer:

4 aquariums

Step-by-step explanation:

because each aquarium can hold 12 liters and if there is 48 liters total you divide 48 by 12 and get a total of 4 aquariums

The temperature on the moon vary from -173*C to 127C find the difference between the maximum and minimum temperatures

Answers

Answer:

300°

Step-by-step explanation:

Difference means to subtract:

127 - (-173) = 300

Therefore, the temperatures have a difference of 300°.

Answer: 300

Step-by-step explanation:

The max temp is 127C

The min temp is -173C

The difference between the maximum and minimum temperatures = max temp - min temp= 127-(-173) = 127+173=300

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag
the item to the trashcan. Click the trashcan to clear all your answers,
Express in exponential form.
logo0.001 =3

Answers

In order to write log10(0.001) = -3 in index form, we have [tex]10^{-3} = 0.001[/tex].

Exponential form of logarithm

The logarithm of a number refers to the power to which a given base is raised to give the number. In this case, the base is 10 and the index is 3. Our task is to write log10(0.001) = -3 in index form.

Recall that;

[tex]a^{x}[/tex] = P

Hence, to write  log10(0.001) = -3 in index form we have to write, [tex]10^{-3} = 0.001[/tex]

Learn more about logarithm: https://brainly.com/question/7302008

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