USE ELIMINATION PLS! I WILL MAKE U BRAINLIST

USE ELIMINATION PLS! I WILL MAKE U BRAINLIST

Answers

Answer 1

Answer: (-4, -3) x= -4 y=-3

Step-by-step explanation:

2x-y=-15

-2x-4y= 30

x is already eliminated

-5y=15

/-5

y=-3

now plug in y to one of equations

2x+3=-15

-3       -3

2x=-8

/2

x=-4


Related Questions

Help me guys? Please

Help me guys? Please

Answers

Answer:

a :)

Step-by-step explanation:


CAN SOMOME PLEASE HELPPP!!

You rent an apartment that costs $1700 per month during the first year, but the rent
is set to go up 9% per year. What would be the rent of the apartment during the 12th
year of living in the apartment? Round to the nearest tenth (if necessary).

CAN SOMOME PLEASE HELPPP!!You rent an apartment that costs $1700 per month during the first year, but

Answers

Answer:

$4386.70

Step-by-step explanation:

The rent will increase 11 times before the 12th year

Required equation:

$1700*(1 + 0.09)^11 = $4386.70 (rounded)

kozol observes the strain on fremont's students at lunchtime, when all of the 3,300 students in attendance are served in one 30-minute meal period. one teacher calculates that the extended walk to the cafeteria and long food lines create a 10-minute window for students to eat. what often results is that many students go all day without a meal (176).

Answers

Kozol notices the stress on the 3,300 kids at Fremont during lunch, when the entire meal is provided in a single 30-minute period. One teacher estimates that the lengthy distance to the cafeteria and the lengthy queues for food provide children a 10-minute window during which to eat. As a result, many students frequently skip meals entirely (176).

Given,

Lunch was served to the pupils in this school in a single sitting, unlike the staggered luncheon sessions I saw at Walton High. 3,300 children cannot be fed at once due to physical limitations, the teacher explained. "The session lasts barely 30 minutes, and there is a very large line for children to obtain their food. They must wait in line for fifteen minutes before they can even walk there from their classes. They most likely have 10 minutes to eat their food. Many of them don't even try.

You've worked as a teacher, so you know what it's like for students to go a whole day without eating. Here at Fremont, the school day lasts eight hours.

Here,

Kozol notices the stress on the 3,300 kids at fremont during lunch, when the entire meal is provided in a single 30-minute period. One teacher estimates that the lengthy distance to the cafeteria and the lengthy queues for food provide children a 10-minute window during which to eat. As a result, many students frequently skip meals entirely .

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Given question is incomplete. Completed question is here;-

Unlike the staggered luncheon sessions I observed at Walton High, lunch was served in a single sitting to the students in this school. "It's physically impossible to feed 3,300 kids at once," the teacher said. "The line for kids to get their food is very long and the entire period lasts only 30 minutes. It takes them 15 minutes just to walk there from their classes and get through the line. They get 10 minutes probably to eat their meals. A lot of them don't try. You've been a teacher, so you can imagine what it does to students when they have no food to eat for an entire day. The schoolday here at Fremont is eight hours long."

From Kozol, Jonathan. The Shame of the Nation: The Restoration of Apartheid Schooling in America. New York: Crown, 2005. Print. The passage appears on page 176.

HELP ME ASAP NO LINKS
Which student's expression results in a quotient of 12.5?
KWAN
VERA
16.25 : 1.3
- 11.25 = (-9)
Mark only one oval.
0000
a. Kwan's only
b. Vera's only
c. Both Kwan and Vera's
d. Neither Kwan nor Vera's

HELP ME ASAP NO LINKS Which student's expression results in a quotient of 12.5?KWANVERA16.25 : 1.3- 11.25

Answers

Answer:

I wanna say its B. Vera's only

It should be B Vera’s only

The Statue of Liberty, Grand Canyon, and Empire State Building are all examples of __________ good.
A.
private
B.
public
C.
industry
D.
consumer


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

its c im pretty sure

Step-by-step explanation:

i got it right on my quiz

Please help ASAP!!! Thank you!

Please help ASAP!!! Thank you!

Answers

Answer:

It seems that you are correct :)

Step-by-step explanation:

For the right triangle shown, whih equation can be used to find the vaule of x

For the right triangle shown, whih equation can be used to find the vaule of x

Answers

Answer:

The answer is b

Step-by-step explanation:

Answer:

the answer is B

Step-by-step explanation:

Need help on 2 questions

Question 1: Compared to last month, there was a 50% increase in the number of houses sold this month.

Question 2: the runners time to complete the marathon was 10% less than the time to complete the last marathon.

Use the picture as an example.

Need help on 2 questionsQuestion 1: Compared to last month, there was a 50% increase in the number of

Answers

Answer:

oijfijfiosdoiviv

Step-by-step explanation:

A box contains 7 plain pencils and 1 pen. A second box contains 3 color pencils and 3 crayons. One item from
each box is chosen at random. What is the probability that a pen from the first box and a crayon from the
second box are selected?
Write your answer as a fraction in simplest form.

Answers

The probability of selecting a pen from the first box is 1/8 (since there is only 1 pen out of 8 items in the box). The probability of selecting a crayon from the second box is 3/6 (since there are 3 crayons out of 6 items in the box).

To find the probability of both events happening together, we multiply the probabilities:

P(pen and crayon) = P(pen) x P(crayon)

P(pen and crayon) = (1/8) x (3/6)

Simplifying the fraction 3/6 to 1/2:

P(pen and crayon) = (1/8) x (1/2)

Multiplying the numerators and denominators:

P(pen and crayon) = 1/16

Therefore, the probability of selecting a pen from the first box and a crayon from the second box is 1/16.

at this point of contact, is the number of field lines per unit of balloon surface area equal to the number of field lines per unit of box surface area?

Answers

a) The electric field magnitude on the balloon surface will be different from the electric field magnitude on the box surface.

b) the electric field lines intersect with the planar surface of the box, the field lines will be compressed or spread out depending on the angle of incidence.

At the point of contact between the spherical balloon and the wall of the cubical box, the electric field magnitude will not be the same on both surfaces. This is because the surface of the balloon is spherical, while the surface of the box is planar. The electric field lines emanating from the charged ball will be spherically symmetric around the ball and perpendicular to the surface of the balloon. However, when the electric field lines intersect with the planar surface of the box, the field lines will be distorted due to the change in direction of the surface. As a result, the electric field magnitude on the balloon surface will be different from the electric field magnitude on the box surface.

At the point of contact, the number of field lines per unit area will also be different for the balloon surface and the box surface. The electric field lines from the charged ball will be distributed uniformly over the surface of the spherical balloon, so the number of field lines per unit area will be constant over the entire surface. However, when the electric field lines intersect with the planar surface of the box, the field lines will be compressed or spread out depending on the angle of incidence. Therefore, the number of field lines per unit area on the box surface will not be the same as the number of field lines per unit area on the balloon surface.

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Question:

A small charged ball is suspended at the center of a spherical balloon that is nestled snugly inside a cubical cardboard box. On one side, the balloon touches the wall of the box. (a) At this point of contact, is the electric field magnitude on the balloon surface equal to the electric field magnitude on the box surface? Assume neither object is polarized. (b) At this point of contact, is the number of field lines per unit of balloon surface area equal to the number of field lines per unit of box surface area?

I won the grand prize at a store giveaway.The grand prize winner is guaranteed to win at least $500 in cash and prizes.List three possible dollar amounts in cash and prizes i can win?

Answers

$500
$300
$100
This are the prize you could win

A police car drives with a constant speed of 64 mph. How far can it travel in 2 hours?

Answers

Answer:

128 miles.

Step-by-step explanation:

The police car is driving at a constant speed of 64 mph so you simply have to multiply the rate by the time to get the distance.

64 * 2 = 128 miles

Hope this helps!  

PLEASE HELP!!

An automobile rental company charges $27 per day plus $0.11 per mile for an automobile rental.
(a) Elaine rented a car for one day and drove 135 mi. How much did she pay?
(b) Ramon paid $71.00 to rent a car for one day. How far did he drive?

Answers

For a you would have to multiply 0.11 by the amount of mi she drove which was 135mi that would give you $14.85 and then you would add the $27 since she rode the car for one day only and that would give you $41.85

And for b to start you would have to subtract $27 since he only rode for one day that would give you $44 then you would have to figure out how many mile he drove so you would divide 44 by 11 and that you give you 400 so he drove 400mi

Hope this helped

what is the median of 10,12,24,18,14,26,22

Answers

Answer:

18

Step-by-step explanation:

18

when two balanced dice are rolled, there are 36 possible outcomes. find the probability that either doubles are rolled or the sum of the dice is 6.

Answers

The probability that either doubles are rolled or the sum of the dice is 10 is 2/9.

What is probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of

Total possible outcomes= 36

Probability that either doubles are rolled or the sum of the dice is 10

= 6 (doubles) + 2 (sum is 10, without double (5,5))

=8

P( either doubles are rolled or the sum of the dice is 10)= 8/36

                                                                                           = 2/9

Thus, probability that either doubles are rolled or the sum of the dice is 10 is 2/9.

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Two friends, Francisco and Zoe, had just bought their first cars. Zoe uses 14 gallons of gas to drive 390.6 miles in her car. The graph below represents the number of miles, y, that Francisco can drive his car for every x gallon of gas.

Answers

Using linear function to solve this problem, for every 1 gallon of gas, Francisco travelled 27.9 miles

Linear Function

A linear function is a function that represents a straight line on the coordinate plane. For example, y = 3x - 2 represents a straight line on a coordinate plane and hence it represents a linear function. Since y can be replaced with f(x), this function can be written as f(x) = 3x - 2. A linear function is of the form f(x) = mx + b where 'm' and 'b' are real numbers. Isn't it looking like the slope-intercept form of a line which is expressed as y = mx + b? Yes, this is because a linear function represents a line, i.e., its graph is a line. where m is slope of the line and b is the y - intercept

We can use the data given in writing out our equation

y = Number miles coveredx = number of gallon

390.6 = 14x

If 14 gallons = 390.6 miles

 1 gallon = x miles

x = 390.6 / 14

x = 27.9 miles

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After a 60% reduction, you purchase a new sofa drink machine on sale for $312.
What was the original price of the sofa drink machne?

Answers

Search up 0.60 x 312= 187.2, 187.2 + 312 = 499.2

help me pls i have a test soon

help me pls i have a test soon

Answers

Answer:

I believe it is true, false, true, true.

Step-by-step explanation:

there are no green marbles, there are way more yellow marbles then even blue and red combined, you could get a blue one being the odds 5/16, and there are only 2 red marbles so it is unlikely that you choose red. I hope this helps!

Answer:

true false true true

Step-by-step explanation:

there is no green marbles

you are most likely to get a yellow

blue marble is gonna be selected

there's only 2 red marbles low chance of getting choose.

What is 44 to the second power?

Answers

Answer:

1936

Step-by-step explanation:

You would have to multiply 44 by itsself 2 times

44 x 44 =

1,936

Example:

55 to the third power

Multiply 55 3 times since its to the 3rd power

55 x 55 x 55 =

166375

jennifer has three more dimes than nickels and three times as many quarters as nickels. if she has $7.50, how many quarters does she have? www.wyzant

Answers

Jennifer has 48 nickels, which means she has 144 quarters.

Let's call the number of nickels Jennifer has "n".

Since Jennifer has three more dimes than nickels, she has n + 3 dimes.

And since she has three times as many quarters as nickels, she has 3n quarters.

We can start by figuring out the total value of the nickels and dimes in terms of cents:

n * 5 cents + (n + 3) * 10 cents = 750 cents

Expanding the right side of the equation and solving for n:

5n + 10n + 30 cents = 750 cents

15n + 30 cents = 750 cents

15n = 720 cents

n = 48

So Jennifer has 48 nickels, which means she has 3 * 48 = 144 quarters.

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please help factorise 7ab+a

Answers

The answer would 8ab

Answer:

= a(7b + 1)

Step-by-step explanation:

7ab + a

a(7b + 1).

Which term is a word for a fee that is paid for the use of another person's money? ​

Answers

Answer:

Step-by-step explanation:

Interest

Write and equation to represent the function.
Input(x). 1. 2. 3. 4
Output(y). 6. 10. 14. 18

Answers

Answer:

in explanation

Step-by-step explanation:

Input to output so for the input when it is 1=6 because it starts at 5 and then 8 what I mean is when the input comes out the output is going to be 3 more greater than last time.

So 1=6 so 6 is 5 more then

2 to 10=8 so 5 more went to 8 more.

Next is 3 and 14 so 3 more again because 8 + 3=11 so in that case that next number is 4 it will be 14 more

So 14 more than 4=18 and that is the output.

Also for the output it adds 4 for the numbers 6 + 4=10 + 4=14+ another 4=18.


And input is just plus 1.

Hope it helps have a great day:)

What number is represented by the expanded form shown? write the number in the place-value chart.

What number is represented by the expanded form shown? write the number in the place-value chart.

Answers

Using the conversion of expanded form, 7 comes tens place, 8 comes in ones place, 6 comes hundredth place after decimal and 3 comes thousandth place after decimal.

In the given question,

We have to check what number is represented by the expanded form.

The given expanded form is

70+8+6/100+3/1000

The tenths place is represented by the first digit following the decimal. The hundredths place is represented by the digit that follows the decimal. Up until there are no more digits, the remaining ones keep the place values filled in. the quantity.

We have to check in which place what number comes.

Firstly we see the number 70. In the number we can see that 7 is in tens place. So in the chart in place of tens 7 come.

Now we can see that 8 is in ones place. So 8 comes in ones place in chart.

Now we check next number 6/100. As we can see that 6 is divide by 100 so it represent decimal value. Since it is divided by 100 so 6 comes in hundredth place after decimal.

Now we check number 3/1000. As we can see that 3 is divide by 1000 so it represent decimal value. Since it is divided by 1000 so 3 comes in thousandth place after decimal.

The completed chart is below.

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What number is represented by the expanded form shown? write the number in the place-value chart.

Nick consumes chocolate over two periods. He has 20 chocolate bars which can be consumed in either period. He cannot buy more chocolate bars and left over chocolate bars do not gain or lose value. Let c 1

be the amount of chocolate bars consumed in period 1 and let c 2

be the amount of chocolate bars consumed in period 2. Unfortunately for Nick, there is a .25 probability that someone will steal his chocolate before he ever gets a chance to eat it. Ian the insurance broker offers to replace any stolen chocolate as long as Nick pays Ian F upfront for the insurance. Nick's utility is U(c 1

;c 2

;F ′
)=c 1

c 2

−F ′
where c 1

and c 2

are the actual amounts of chocolate consumed and F ′
is the amount spent on insurance ( 0 if no insurance is purchased, F if insurance is purchased). Nick maximizes his expected utility. Find the threshold price F ∗
for insurance where Nick is indifferent over buying insurance. What happens if F>F ∗
? What happens if F ?

Answers

The threshold price F * for insurance is F * = c1c2. If F >F *, it would not be rational for Nick to purchase insurance. If F < F *, it would be rational for Nick to purchase insurance as it provides a net benefit.

To find the threshold price F *  for insurance where Nick is indifferent over buying insurance, we need to determine the point at which Nick's expected utility is the same whether he purchases insurance or not.

Let's consider the two scenarios:

1. No insurance purchased (F' = 0):
In this case, if Nick consumes c1 chocolate bars in period 1 and c2 chocolate bars in period 2, his utility function becomes U(c1;c2;0) = c1c2.

2. Insurance purchased (F' = F):
If Nick purchases insurance by paying F upfront, his utility function becomes U(c1;c2;F) = c1c2 - F.

Now, let's find the threshold price F * by comparing the expected utilities for both scenarios:

1. No insurance:
The expected utility without insurance is the utility multiplied by the probability of not having his chocolate stolen (1 - 0.25 = 0.75):
E(U(c1;c2;0)) = 0.75 * (c1c2)

2. Insurance:
The expected utility with insurance is the utility multiplied by the probability of not having his chocolate stolen, minus the cost of insurance (F), multiplied by the probability of having his chocolate stolen (0.25):
E(U(c1;c2;F)) = 0.75 * (c1c2) + 0.25 * (c1c2 - F)

To find the threshold price F *, we set the expected utilities equal to each other and solve for F:
0.75 * (c1c2) = 0.75 * (c1c2) + 0.25 * (c1c2 - F)

By simplifying the equation, we get:
0 = 0.25 * (c1c2 - F)

Solving for F gives us:
F = c1c2

Therefore, the threshold price F * for insurance is F * = c1c2.

Now let's consider the scenarios when F > F * and F < F *:

- F > F *:
If the price of insurance (F) is greater than the threshold price (F *), it means that the cost of insurance is higher than the expected loss from chocolate being stolen. In this case, it would not be rational for Nick to purchase insurance because he would be paying more than the potential loss.

- F < F *:
If the price of insurance (F) is less than the threshold price (F *), it means that the cost of insurance is lower than the expected loss from chocolate being stolen. In this case, it would be rational for Nick to purchase insurance as it provides a net benefit by reducing the potential loss.

In summary, the threshold price F * for insurance is F * = c1c2. If F > F *, it would not be rational for Nick to purchase insurance. If F < F *, it would be rational for Nick to purchase insurance as it provides a net benefit.

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Find m(-10) if m(t) = -(t + 6).
Find a(-6)if a (n)=7+n
Any help is greatly appreciated.​

Answers

So notice how the variable inside the parentheses after the function changes into a number (t changes to -10 and n changes into -6). This means to change every variable within the function into the number inside the parentheses that the variable turned into.
So, for m(-10) if m(t) = -(t + 6):
m(-10) = -((-10)+6)
Remember, flip the equation since it's a negative outside the parentheses.
m(-10) = (10 – 6); m(-10) = 4
Same for the second equation.
a(-6) if a(n) = 7 + n
a(-6) = 7 + (-6)
a(-6) = 7 – 6
a(-6) = 1

So these are your answers:

m(-10) = 4
a(-6) = 1


You tie a spherical balloon that is 2 feet in diameter to a
stake in the ground. The string is 15 feet long. The wind
blows and you observe that the top of the balloon is
8 feet over from the stake, as shown in the diagram.
What is the height, b, of the balloon?
Show your work.
15 ft
2 ft
8 ft

Answers

Answer:

Step-by-step explanation:

Suppose that the time in minutes required to serve a customer at a certain facility has an exponential distribution for which the value of the parameter θ is unknown and that the prior distribution of θ is a gamma distribution for which the mean is 0.3 and the standard deviation is 1. If the average time required to serve a random sample of 40 customers is observed to be 9.6 minutes, what is the posterior distribution of θ?

Answers

The posterior distribution of θ is a gamma distribution with parameters 40 + 0.09 and 9.6 + 0.3Posterior(θ | X) ~ Gamma(40.09, 9.9)

To determine the posterior distribution of θ, we can use Bayes' theorem. Let's denote:

- X: Average time required to serve a random sample of 40 customers (9.6 minutes)

- θ: Parameter of the exponential distribution

- Prior distribution of θ: Gamma distribution with mean 0.3 and standard deviation 1

We can express the posterior distribution of θ as:

Posterior(θ | X) ∝ Likelihood(X | θ) * Prior(θ)

Given that the exponential distribution is characterized by the parameter θ, the likelihood function can be expressed as:

Likelihood(X | θ) = (1/θ)^n * exp(-X/θ)

Where n is the sample size (40 in this case).

The prior distribution of θ is given as a gamma distribution with mean 0.3 and standard deviation 1. We can denote the gamma distribution as Gamma(α, β), where α is the shape parameter and β is the rate parameter. To find the specific values of α and β, we need to use the mean and standard deviation of the gamma distribution:

Mean = α/β = 0.3

Standard deviation = sqrt(α)/β = 1

From these equations, we can solve for α and β:

α = (mean/standard deviation)^2 = (0.3/1)^2 = 0.09

β = mean/standard deviation^2 = 0.3/(1^2) = 0.3

Now, we can calculate the posterior distribution by multiplying the likelihood and the prior distribution:

Posterior(θ | X) ∝ (1/θ)^n * exp(-X/θ) * θ^(α-1) * exp(-βθ)

Simplifying the expression:

Posterior(θ | X) ∝ θ^(n + α - 1) * exp(-(X/θ + βθ))

We recognize this expression as the kernel of a gamma distribution. Therefore, the posterior distribution of θ is a gamma distribution with parameters n + α and X + β.

In this case,the posterior distribution of θ is a gamma distribution with parameters 40 + 0.09 and 9.6 + 0.3.

Posterior(θ | X) ~ Gamma(40.09, 9.9)

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(b) what is the standard deviation in the number of robin sleeping bags that joseph can expect to see when picking up sets of 50 bags, on average?

Answers

Standard deviation in the number of robins sleeping bags is 50.

what is standard deviation?

A statistical expression that defines how much the available data are differ from the mean value of data. A low standard deviation indicates that all values seem to close to the mean, but the higher standard deviation indicates the opposite.

What is mean value in statistics?

The mean value of a statistical data is the sum of all values divided by the total amount of data.

given, average number of bags expected by Joseph =50

actual mean value, X= 50

number of terms, N=1

So, standard deviation in the number of sleeping bags = √(∑X²/N)

 hence, we get standard deviation = √(50²/1) = 50

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Need help please, 30 points: Rewrite the expression with a rational exponent as a radical expression. five to the three fourths power all raised to the two thirds power the cube root of five squared the twelfth root of five the square root of five the cube root of five the fourth power

Answers

Correct arrangement of the question is;

Rewrite the rational exponent as a radical: five to the three fourths power all raised to the two thirds power

A) the cube root of 5 squared

B) the twelfth root of 5

C) the square root of 5

D) the cube root of 5 the fourth power

Answer:

Option C) the square root of 5

Step-by-step explanation:

We are given: five to the three fourths power all raised to the two thirds power

Translating that statement means 5 is raised to ¾ raised to ⅔.

In indices, when we have two powers attached to a number, the two powers will multiply each other.

Thus, 5 is raised to; ⅔ × ¾ = 2/4 = ½

Thus, 5 is raised to power ½.

Now, when a number is raised to the power ½, it is said to be square root of that number.

Thus, the right answer is square root of five.

Other Questions
3x^2-2x+1 when x is 4 Consider the following data for these funds. Fund Alpha Omega Omicron Millennium Big Value Momentum Watcher Big Potential S & P Index Return T-Bill Return Average Return 28.00% 31.00% 22.00% 40.00% 15.00% 29.00% 15.00% 20.00% 6.00% Standard Deviation 27.00% 26.00% 21.00% 33.00% 13.00% 24.00% 11.00% 17.00% Non- Beta systematic Coefficient Risk 1.7000 5.00% 1.6200 6.00% 0.8500 2.00% 2.5000 27.00% 0.9000 3.00% 1.4000 16.00% 0.5500 1.50% 1.0000 0.00% 0.0000 Calculate: Sharpe, Treynor, Jenson, M?, T2 and Information ratio for these funds and rank the funds according to the performance measures. P and Q are two geometrically similar solid shapes. The total surface area of shape P is 240 cm. The total surface area of shape Q is 2160 cm. The volume of shape P is 960 cm. Calculate the volume of shape Q. Optional working + Answer cm Tetap Teguh is currently operating at 78% capacity. Currently, total assets are RM49,800 and current sales are RM56,300. What is the firm's full capacity sales? which of the following is a 'zeitgeber', or an important external stimulus affecting biological clocks? You are observing the current volatility in the market and looking for a trade. Specifically, you are studying Microsoft calls and puts contracts. As a result, you are planning to buy one MSFT call with an exercise price of $70 which will cost you $3. At the same time, you also intend to sell one MSFT call with an exercise price of 75 which costs $1. (dont forget to multiply by 100)The expiration date has come and MSFT is trading at $74. How much is your profit at this price?Group of answer choicesA. $100B. $200.C. 300D. zero.E. None of these is correct. Gail averages 153 points per bowling game with a standard deviation of 14.5 points. Suppose Gail's points per bowling game are normally distributed. Let X= the number of points per bowling game. Then XN(153, 14.5). z-score when x=108 is _____. The mean is 153. The z-score tell you that x=108 is _____ standard deviations to the left of the mean.