Rachel, Sam and Thomas applied for a common position at the company. Only one of them will be hired for the position. The probabilities that each of them is hired for the role are given by 1 out of 7, 2 out of 7, and 4 out of 7 respectively.
The probabilities that Rachel, Sam and Thomas can help boost the company’s revenue are given by 4 out of 5, 1 out of 2, and 3 out of 10 respectively if they are hired.
(a) Find the probability that Thomas is selected for the position given that the company’s revenue did not improve.
(b) Find the probability, p, that the company’s revenue will generally improve.
Rachel, Sam and Thomas interviewed at another company for another position. The probabilities that each of them is hired for the role are now given by x, 2x and 4x respectively.
It can be assumed that the hiring process for each individual candidate are independent of one another.
(c) Suppose there is no limit to the number of hires the company can make (i.e. the company can hire any one of them, any two of them, all three of them or no one at all). Find an inequality that must satisfied by x.

a)  Verified

b)  4 + √7 and 4 - √7

Given a cubic function with three roots, one of the roots is given as x = 2. The other two roots can be found by using the factor theorem. Using factor theorem, we have(f(x) = x³ - 10x² + 27x - 18)(x - 2) is a factor of f(x)if and only if f(2) = 0.So, we have f(2) = 2³ - 10(2²) + 27(2) - 18 = 0. Therefore, (x - 2) is a factor of f(x) and we can find the other two roots by factorizing the cubic function. Using long division method, we get f(x) = (x - 2)(x² - 8x + 9) Now, to find the other two roots, we solve the quadratic equation x² - 8x + 9 = 0 using the quadratic formula. x = (-b ± √(b² - 4ac))/2a. We have a = 1, b = -8 and c = 9. Substituting the given values in the above formula, we get x = (8 ± √(8² - 4(1)(9)))/2= (8 ± √28)/2= 4 ± √7. Therefore, the three roots of the cubic function are 2, 4 + √7 and 4 - √7.

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The actual width of the real igloo is 14 feet.

A ratio scale is simply a quantitative scale where there is a true zero and equal intervals between neighboring points.

The given scale tells us that 1 inch on the model igloo represents 2 feet on the real igloo.

If the scale of the model igloo is 1 inch to 2 feet, then we can use this ratio to convert the width of the model igloo (7 inches) to the width of the real igloo:

= 7 inches × 2 feet/inch

= 14 feet

Therefore, the width is 14 feet

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The principal is $467.69 rupees (rounded to two decimal places).

The concept of simple interest is a type of interest calculation based on a fixed percentage rate applied to an initial amount of money, called the principal, for a specific period of time

To find the principal, we can use the formula:

Total Interest = (Principal x Rate x Time) / 100

Where,

Rate = Annual Rate of Interest

Time = Period in years

Plugging in the given values, we get:

1222 = (Principal x 6.5 x 4) / 100

Simplifying the equation:

1222 = (26 x Principal) / 10

Multiplying both sides by 10/26:

Principal = $467.69

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Answer:

-5

Step-by-step explanation:

3n-6=-21

    +6   +6

3n=-15 --> divide both sides by 3

n=-5

The probability of picking two blue marbles is 1/21.

Probability is used to determine how likely it is that a random event would occur. The probability of a random event happening lies between 0 and 1. If it is certain the event would happen, the probability value is 1 and if it is certain that the event would not happen, the probability value is 0.

Probability of picking two blue marbles = (number of blue marbles / total number of marbles) x (number of blue marbles -1 / total number of marbles - 1)

Total number of marbles = 7

(2/7) x (2-1/7-1)

2/7 x 1/6 = 1/21

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The expοnential functiοn fοr the given table is y = 5(2)ˣ.

A functiοn is  relatiοn between  set οf inputs (called  dοmain) and  set οf οutputs (called  range), where each input is assοciated with exactly οne οutput. A functiοn is usually denοted by  symbοl like  f, and is written as f(x), where x is element οf dοmain.

we can use the general fοrm οf an expοnential functiοn, which is:

y = abˣ

where a and b are cοnstants that we need tο determine.

Using the given values οf x and y in the table, we can fοrm fοur equatiοns as fοllοws:

2.5 = ab⁽⁻¹⁾

5 = ab⁰

10 = ab¹

20 = ab²

Dividing the secοnd equatiοn by the first equatiοn, we get:

5/2.5 = (ab⁰)/(ab⁽⁻¹⁾ )

2 = b

Substituting this value οf b in the οther equatiοns, we get:

2.5 = a(2)⁽⁻¹⁾

a = 5

10 = 5(2)¹

10 = 10

20 = 5(2)²

20 = 20

Therefοre, the expοnential functiοn fοr the given table is:

y = 5(2)ˣ.

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Lorie should deposit $6,986.05 today at 5.25% to have enough money to pay off the loan in 7 months.

To determine the amount that Lorie should deposit today to have enough money to pay off the loan.

We use the simple interest formula for accrued amount.

A = P( 1 + rt )

Where A is total amount, P is initial amount, r is interest rate and t is elapsed time.

Given that;

First, converting R percent to r a decimal

r = R/100

r = 5.25/100

r = 0.0525

Next, we put time into years for simplicity,

t = 7 months / 12 months

t = 7/12 year

Plug the values into the above formula.

A = P( 1 + rt )

P = A / ( 1 + rt )

P = $7,200 / ( 1 + ( 0.0525 × 7/12 ) )

P = $7,200 / ( 1 + 0.030625 )

P = $7,200 /  1.030625

P = $6,986.05

Therefore, the principal or initial amount is $6,986.05.

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The amount she should deposit today to have enough money to pay off the loan would be = $1,060

The cost of the small car that Lorie Reilly needs to buy for college = $7,200.(P)

The number of months that she plans to repay the money = 7 months = 0.58 yr.(T)

The rate at which the money needs to be deposited = 5.25%. (R)

The simple interest = Principal× Time × Rate /100

Simple interest = 7200× 0.58 × 5.25/100

= 21924/100

= $219.24

The amount she is expected to pay after 7 months = 7200+219.24 = 7419.24

The amount she should deposit today to have enough money to pay off the loan = 7419.24/7 = $1,060( approximately)

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The rent of the apartment during the 8th year would be approximately $2491.4.

To calculate the rent of the apartment during the 8th year, we need to apply the 11% increase per year for a total of 7 years (from the 2nd to the 8th year). Here's the calculation:

Rent for the 2nd year:

$1200 + (11% of $1200) = $1200 + ($132) = $1332

Rent for the 3rd year:

$1332 + (11% of $1332) = $1332 + ($146.52) = $1478.52

Rent for the 4th year:

$1478.52 + (11% of $1478.52) = $1478.52 + ($162.64) = $1641.16

Rent for the 5th year:

$1641.16 + (11% of $1641.16) = $1641.16 + ($180.53) = $1821.69

Rent for the 6th year:

$1821.69 + (11% of $1821.69) = $1821.69 + ($200.39) = $2022.08

Rent for the 7th year:

$2022.08 + (11% of $2022.08) = $2022.08 + ($222.43) = $2244.51

Rent for the 8th year:

$2244.51 + (11% of $2244.51) = $2244.51 + ($246.90) = $2491.41

Therefore, the rent of the apartment during the 8th year would be approximately $2491.4.

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Answer: To find the image of point L(-4,3) after a dilation with a scale factor of 3 and center at the origin, we need to multiply the coordinates of point L by the scale factor.

The formula for dilation is:

(x', y') = (kx, ky)

where (x, y) are the original coordinates, (x', y') are the coordinates of the image, and k is the scale factor.

In this case, k = 3 and the coordinates of point L are (-4, 3).

So,

x' = kx = 3(-4) = -12

y' = ky = 3(3) = 9

Therefore, the image of point L(-4, 3) after the dilation with a scale factor of 3 and center at the origin is (-12, 9).

Step-by-step explanation:

The probability that this whole shipment will be accepted is 0.1813. The company will accept 82.87% of the shipments and will reject 17.13% of the shipments, so the likelihood of a rejected shipment is relatively low.

Probability is essentially the likelihood that something will occur. The entire number of potential outcomes must first be known in order to calculate the likelihood of a particular event.

P(E) = Number of favorable outcomes / Number of total outcomes

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As a result, the Moon orbits the Earth roughly 2.8 billion times while the Sun revolves once around the Milky Way's nucleus.

One cycle of the Sun around the Milky Way's nucleus is thought to take between 225 and 250 million years to complete. The synodic month, or the length of time it takes the Moon to complete one orbit of the Earth, lasts roughly 29.5 days.

We must divide the total time of one orbit of the Sun around the Milky Way by the amount of time it takes for the Moon to orbit the Earth once in order to determine how many times the Moon orbits the Earth during one orbit of the Sun around the Milky Way's centre.

The result is (Total time for one orbit of the Sun around the centre of the Milky Way)/(Time for one orbit of the Moon around the Earth) = (225 million years x 365.25 days per year)/(29.5 days per orbit of the Moon) = around 2.8 billion orbits of the Moon around the Earth.

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Step-by-step explanation:

let f(x) be y

y=x+2

make x the subject of the formula

x=2-y

Answer:

Step-by-step explanation:

The expression (x² + 9x + 14)/(2x) * (x² - 4x)/(x² - 49) ÷ (x-4)/(x-7) when simplified is 2x + 4

Given that

(x² + 9x + 14)/(2x) * (x² - 4x)/(x² - 49) ÷ (x-4)/(x-7)

To start with, we factorize the factors of the expression

The factored expressions are

(x² + 9x + 14)/(2x) * (x² - 4x)/(x² - 49) ÷ (x-4)/(x-7) = (x + 2)(x + 7)/(2x) * x(x - 4)/(x - 7)(x + 7) ÷ (x-4)/(x-7)

Cancel out the common factors to reduce the expression

So, we have

(x² + 9x + 14)/(2x) * (x² - 4x)/(x² - 49) ÷ (x-4)/(x-7) = (x + 2)/(2) * (x - 4)/(x - 7) ÷ (x-4)/(x-7)

Express division as product

(x² + 9x + 14)/(2x) * (x² - 4x)/(x² - 49) ÷ (x-4)/(x-7) = (x + 2)/(2) * (x - 4)/(x - 7) * (x - 7)/(x - 4)

Evaluate the quotient

(x² + 9x + 14)/(2x) * (x² - 4x)/(x² - 49) ÷ (x-4)/(x-7) = (x + 2)/(2)

So, we have

(x² + 9x + 14)/(2x) * (x² - 4x)/(x² - 49) ÷ (x-4)/(x-7) = 2x + 4

Hence, the solution is 2x + 4

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The function for the value of the account after t years is:[tex]\rm V(t) = 4700 \times e^{(0.068t)[/tex].

The percentage growth per year (APY) is 7.03%.

The formula for the value of an account with continuous compounding is given by:

                                              [tex]\rm V = Pe^{(rt)[/tex]

where:

V is the value of the account after t years

P is the initial principal amount invested (in this case, $4,700)

e is the mathematical constant (approximately equal to 2.71828)

r is the annual interest rate expressed as a decimal (in this case, 0.068)

t is the time period in years.

Therefore, the function for the value of the account after t years is:

[tex]\rm V(t) = 4700 \times e^{(0.068t)[/tex]

To find the annual percentage yield (APY), we use the formula:

[tex]APY = 100 \times (e^r - 1)[/tex]                        

where r is the annual interest rate expressed as a decimal (in this case, 0.068).

[tex]APY = 100 \times (e^{0.068} - 1)[/tex]

= 7.03%

Therefore, the percentage growth per year (APY) is 7.03%.

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I you place the 37 foot ladder against the top of the 15 foot building, it will reach a height of 52 feet.

If you place a 37 foot ladder against the top of a 15 foot building, then the ladder will reach a height of 52 feet (37+15=52). To calculate this, you can use the formula for addition, which is x + y = z, where x is the height of the building, y is the height of the ladder, and z is the total height the ladder will reach. In this case, x = 15 and y = 37, so the total height the ladder will reach will be z = 15 + 37 = 52. This means that if you place the 37 foot ladder against the top of the 15 foot building, it will reach a height of 52 feet.

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Thus, to the closest dollar, the total sales revenue included in the master budget for September was as follows: master budget sales income = $11.71 multiplied by 40,000 Sales master budget.

Let's first get the precise variable cost per unit:

Real variable cost is $7.43 per unit.

Let's next determine the revenue from the flexible budget:

$400 000 in flexible budget revenue

Let's now determine the actual sales revenue:

$383,000 was the actual sales revenue.

Let's figure out the overall variance for the flexible budget:

Overall variance for the flexible budget is $17,000.

Given that the flexible-budget variance is unfavourable (U), we can infer that actual revenue was lower than anticipated.

a... a.. a.. a.. a

Variance in sales volume is 40,000 x ($9.58 - $10.00 + $7.43)

Variance in sales volume = 40,000 x $6.01

Variance in sales volume = $240,400

Let's figure out the overall flexible-budget variation for variable costs:

Variance in the flexible budget for all variable costs is $-106,800.

Let's now determine the precise number of units sold using the sales volume variance.

The budgeted amount of units sold that were sold:

With the actual number of units sold compared to the projected amount (34,132.94), we can determine the budgeted price per unit as follows:

$11.71 is the planned price per unit (rounded to nearest cent)

Thus, to the closest dollar, the total sales revenue included in the master budget for September was as follows:

master budget sales income = $11.71 multiplied by 40,000

Sales master budget

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Answer:

45

Step-by-step explanation:

The number that is needed in the missing cell on the figure in the sequence of numbers, is 4.

The pattern of the numbers on the figure is such that the number on top of two numbers is acquired by subtracting the smaller of the two numbers below the number from the larger number.

This is why 2 is placed on top which was reached with :

= 5 - 3

= 2

The number that is missing can therefore be reached by subtracting 3 from 7 :

= 7 - 3

= 4

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If sequence 23,19,15, the nth term of the sequence 23, 19, 15 is given by the formula aₙ = 23 - 4(n-1).

To find the explicit formula for the nth term of the sequence 23, 19, 15, we need to look for a pattern in the sequence. We can observe that each term in the sequence is obtained by subtracting 4 from the previous term. Therefore, we can write the recursive formula for this sequence as:

a₁ = 23

aₙ = aₙ-1 - 4, for n ≥ 2

To find the explicit formula, we need to use the recursive formula to eliminate the dependence on the previous term. We can do this by repeatedly substituting the recursive formula into itself, until we get an expression for an in terms of a1:

a₂ = a1 - 4 = 23 - 4 = 19

a₃ = a₂ - 4 = (a₁ - 4) - 4 = a1 - 8 = 23 - 8 = 15

a₄ = a₃ - 4 = (a₁ - 8) - 4 = a1 - 12 = 23 - 12 = 11

From this pattern, we can see that each term can be written as:

aₙ = a₁ - 4(n-1)

Substituting a1 = 23, we get the explicit formula:

aₙ = 23 - 4(n-1)

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Step-by-step explanation:

For the equation y=8-2, complete the table and plot the ordered pairs on the graph.

Оо

Size

O

X

y

< Previous

-3

-2

-1

0

2

3

binomial distribution

Question: Suppose that 20% of all copies of grade 7 Science textbook fail a certain binding strength test. Let X denote the number among 15 randomly selected copies that fail the test.b. What is the probability that at least 8 fail the test?To find the probability that at least 8 fail the test, we will use the binomial probability formula.The binomial distribution is a statistical distribution that describes the probability of success or failure in an experiment or survey with two possible outcomes.Suppose a trial consists of n independent experiments, each of which has two possible outcomes: either success with probability p or failure with probability q = 1 – p. If X is the number of successes in n trials, then X is said to follow a binomial distribution with parameters n and p. The probability that X = x is given by;P(X = x) = nCxpx(1-p)n-xwhere nCx = n! / x! (n-x)! is the binomial coefficient which counts the number of ways that x successes can be chosen from n trials.Using the formula, we have;P(X >= 8) = P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12) + P(X = 13) + P(X = 14) + P(X = 15)Here n = 15, p = 0.2 and q = 0.8P(X >= 8) = P(X = 8) + P(X = 9) + P(X = 10) + P(X = 11) + P(X = 12) + P(X = 13) + P(X = 14) + P(X = 15)= 15C8 (0.2)^8 (0.8)^7 + 15C9 (0.2)^9 (0.8)^6 + 15C10 (0.2)^10 (0.8)^5 + 15C11 (0.2)^11 (0.8)^4 + 15C12 (0.2)^12 (0.8)^3 + 15C13 (0.2)^13 (0.8)^2 + 15C14 (0.2)^14 (0.8)^1 + 15C15 (0.2)^15 (0.8)^0= 0.0094 + 0.0267 + 0.0524 + 0.0864 + 0.1174 + 0.1312 + 0.1184 + 0.0352= 0.5771Therefore the probability that at least 8 fail the test is 0.5771 (rounded to four decimal places).Answer: 0.5771

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Answer: So pretty much what you do is you put a dot on the positive 3 then move over one and put another on the 7 and you just keep doing that with all of them

Step-by-step explanation:

Answer:

1a) x=40°

2a) x=30°

Step-by-step explanation:

Use the fact that the sum of the angles of a triangle is always 180°.

So for 1a), x + x+40 + x+20 = 180

Simplify to

3x + 60 = 180

3x = 120

x = 40

apply the same logic to all the others.

For circles, the sum of the angles is 360°, so for 2b)

5x+3x+4x = 360 =>

12x = 360

x = 30°

Step-by-step explanation:

the given pair (3, 2) is the length of the translation ?

it is really totally simple : you need to add the x value of the translation to the x-cordinate of each point. the same for the y value and the y- coordinates.

A' = (1 + 3, 4 + 2) = (4, 6)

B' = (2 + 3, -2 + 2) = (5, 0)

C' = (-3 + 3, 2 + 2) = (0, 4)

The relationship between the number of times Trevor turns the crank, x, and the height the box has been lifted, y, is a linear equation y = (3/5)x.

What is a linear equation?

A linear equation is an algebraic equation in which each term is either a constant or a product of a constant and a variable raised to the first power (i.e., the variable is not squared or cubed). The general form of a linear equation with one variable, x, is:

ax + b = 0

Now,

We are given that there is a proportional relationship between the number of times Trevor turns the crank, x, and the height the box has been lifted, y. Let k = constant of proportionality.

Then, we can write the equation as:

y = kx

We also know that Trevor turns the crank 5 times to lift a box 3 feet.

Now

3 = k(5)

Solving for k, we get:

k = 3/5

Substituting this value of k in the equation, we get:

y = (3/5)x

Therefore, the equation for the relationship between the number of times Trevor turns the crank, x, and the height the box has been lifted, y, is y = (3/5)x.

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Answer:  the answer is that you will have $3630 in the account at the beginning of the 7th year.

Step-by-step explanation:

I = Prt

Using this formula:

I = Prt

I = 3000 x 0.035 x 6

I = $630

Therefore, the total amount in the account at the beginning of the 7th year will be

Total = Principal + Interest

Total = $3000 + $630

Total = $3630

As portrayed in the show, his biggest flaw is not knowing how to be a man. He had spent his life avoiding her responsibility, but she came anyway. He unnecessarily bows to Daenerys after she agrees to fight the Night King.

Perhaps Jon's biggest lingering flaw can be seen in book five: he's not a very good communicator. He struggled to sell his long-term ideas to his subordinates, and he also struggled to balance being overly friendly with them and alienating them, and he chose the latter. Other characters portray him as gruff, hard to read, and lacking in articulation, which isn't great when you're trying to bring about sweeping social reform. This is especially serious when you are dealing with people who are ready to kill you to prevent the implementation of the aforementioned social reforms.

I always say that Robb and Jon have the opposite problem: Robb is very good at selling himself, selling his ideas and thinking short term.

Jon is better at long-term strategic thinking and big-picture thinking, but lacks Robb's ability to really bring people to him.

Then of course, perhaps paradoxically, you have the underlying temper that he sometimes explodes (think of him heaving Thorne's throat with one hand, strangling Iron Emmett, etc.). He also felt very self-pity and defensive about his half-blood identity, both before and after joining the Night's Watch, while considering himself socially and militarily superior to his brothers in the Night guard. He needs someone to line him up (Donal Nye in the book, Tyrion in the show).

Then you have his flaws, which others might interpret as strengths. Lots of people criticized Jon for getting too involved in politics, like helping Stannis, throwing Creeker Stark in an ice prison, and getting Aryskar Stark to marry Saigon. Effective and ruthless efficiency, in the eyes of some, could on the other hand be described as a senseless (insidious?) intervention, the Pink Letter is Jon's intervention, which catches up with him. I also don't think the fictional character Harry Potter is that exciting.

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Answer:

x = 4

Step-by-step explanation:

log a + log b = log ab

log(base b) x = y, then b^y = x

log₂2x + log₂4 = 5

log₂ (2x × 4) = 5

log₂ 8x = 5

8x = 2^5

8x = 32

x = 4

The probability of Natalie sitting between Dave and Robbie: 1/6

Probability is a branch of mathematics that looks at the likelihood of a particular event occurring. It is used to determine the chance that a certain outcome will occur, such as the probability of rolling a particular number when a six-sided die is thrown. Probability can also be applied to more complex scenarios, such as determining the likelihood of a particular stock's price increasing over a certain period of time. The probability of an event is typically expressed as a number between 0 and 1, where 0 indicates that the event will not occur and 1 indicates that the event is certain.

Dave, Frida, Natalie, Robbie:
1. Dave, Frida, Natalie, Robbie
2. Dave, Natalie, Frida, Robbie
3. Frida, Dave, Natalie, Robbie
4. Frida, Natalie, Dave, Robbie
5. Natalie, Dave, Frida, Robbie
6. Natalie, Frida, Dave, Robbie

Probabilities:
1. the probability of Dave and Natalie sitting together: 1/6
2. the probability of sitting boy, girl, boy, girl or girl, boy, girl, boy: 1/2
3. the probability of the two boys sitting in the middle: 1/6
4. the probability of Frida and Natalie sitting together: 1/6
5. the probability of Robbie sitting between the girls: 1/6
6. the probability of Natalie sitting between Dave and Robbie: 1/6

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Option C is correct. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.

What is equations ?

An equation is a mathematical statement that shows the equality of two expressions. It usually contains one or more variables and is solved to find the value of the variable(s) that make the equation true. Equations are used extensively in mathematics, physics, engineering, and many other fields to describe relationships between quantities and to solve problems.

The given system of equations is:

System A:

x + y = 5

3x - 2y = -35

And the solution to this system is (-7, 2).

To obtain System B, we need to manipulate the equations in System A. Let's start by isolating y in the first equation:

y = 5 - x

Now we can substitute this expression for y into the second equation and simplify:

3x - 2(5 - x) = -35

3x - 10 + 2x = -35

5x = -25

x = -5

Now that we have x = -5, we can substitute it back into either of the original equations to solve for y:

x + y = 5

-5 + y = 5

y = 10

So the solution to System B is (-5, 10).

Comparing the two solutions, we see that they are not the same. Therefore, the correct answer is A. To get System B, the second equation in System A was replaced by the sum of that equation and the first equation multiplied by 3. The solution to System B will not be the same as the solution to System A.

Therefore, Option C is correct. To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by -3. The solution to system B will be the same as the solution to system A.

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