please help
y = -4x + 3
y = x - 7

Answers

Answer 1

Answer:

x=2,y=-5

Step-by-step explanation:

−4x+3=x−7

x=2; y=−5

Answer 2

Answer:

y = -5 and x = 2

Step-by-step explanation:

substitute y in the first equation with x-7 from the second equation

x-7 = -4x+3

combine like terms

5x = 10

solve for x

x = 2

plug in x into either equation to solve for y (I used the second equation, but you can use either)

y = 2-7

y =-5


Related Questions

Josephine earns a salary of $560.00 per week, plus a commission of 10% on all sales. Last week, she sold $843 worth of goods. How much was she paid?

Answers

The amount that Josephine will be paid is $644.30.

How much was Josephine paid?

A percentage is a value or ratio that may be stated as a fraction of 100. If we need to calculate a percentage of a number, we should divide it's entirety and then multiply it by 100. The percentage therefore refers to a component per hundred.

In this situation, Josephine earns a salary of $560.00 per week, plus a commission of 10% on all sales and she sold $843 worth of goods.

The amount she'll be paid will be:

= $560 + (10% × $843)

= $560 + $84.3

= $644.30

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What are the x-input values of this relation? (1, 4), (2, 5), (3, 6) Choose all that apply.

1

2

3

4

5

6
pleaseee

Answers

Answer:

1, 2 and 3

Step-by-step explanation:

First you must know that the coordinate of a point is expressed as (x, y) wgere

x serves as the input value (domain)

y serves as the output values

Given the coordinates (1, 4), (2, 5), (3, 6), the input values will be the values at the x coordinates of the points that is 1, 2 and 3.

Which section of the graph represents the solution of the system of inequalities shown?

Which section of the graph represents the solution of the system of inequalities shown?

Answers

Answer:

Q

Step-by-step explanation:

5x+15y ≥ -20

Solve for y

15 y≥  -5x-20

Divide by 15

y ≥ -5x/15 -20/15

y ≥ -1/3 x -4/3

Y is greater than or equal to so shade above  and on the line

4x-2y > 6

Solve for y

-2y > -4x+6

y < 2x -3

Shade below the line

The double shaded area is the solution

Which section of the graph represents the solution of the system of inequalities shown?
Answer:   Region Q

==========================================================

Explanation:

Let's focus on the inequality 4x-2y > 6

Plug in (x,y) = (0,0) to find that...

4x-2y > 6

4(0)-2(0) > 6

0 > 6

This is a false statement. So that means (0,0) is not in the shaded region for 4x-2y > 6. So we'll shade the opposite side of the dashed line to shade regions Q and R (i.e. stuff below the dashed line).

-----------------

Let's check the point (0,0) with the other inequality as well

\(5x + 15y \ge -20\\\\5(0) + 15(0) \ge -20\\\\0 \ge -20\\\\\)

This is true because 0 is to the right of -20 on the number line.

So we'll shade regions P and Q to represent the solution set for this inequality. These regions are above the boundary line. Points on the boundary are also included.

------------------

To summarize so far, we found that

regions Q and R make 4x-2y > 6 true, regions P and Q make \(5x + 15y \ge -20\\\\\) true.

The overlap is region Q which is the final answer

Any point from region Q satisfies both 4x-2y > 6 and \(5x + 15y \ge -20\\\\\) at the same time. A point on the solid boundary line is part of the solution set, but stuff on the dashed boundary line are not solution points.

Circumference of Circle
Geometry

Circumference of Circle Geometry

Answers

Answer:

the equation for the circumerence of a circle is    pi R squared

Step-by-step explanation:

here the radius is 28

So it would be pi 28squared

so i think it would be 784pi

A club consists of 5 girls (Kirsten, Sarah, Suzie, Monica, and Katie) and 3 boys (Kevin, Steve and Samuel). Find P(Girl | K-name)
Answer:
2/3

Answers

The total probability of a girl having a "K-name" is 3/8. The total probability of there being a girl in the club is 5/8.

Therefore, the conditional probability of having a girl with a "K-name" given that there is a girl in the club can be calculated as follows:

P (Girl | K-name) = P (K-name | Girl) × P (Girl) / P (K-name) = 2/5 * 5/8 / 3/8 = 2/3

Therefore, the probability of a girl with a K-name given that there is a girl in the club is 2/3.

In a club consisting of 5 girls (Kirsten, Sarah, Suzie, Monica, and Katie) and 3 boys (Kevin, Steve, and Samuel), we are asked to find P(Girl | K-name).

We can use Bayes' theorem to calculate the conditional probability of this event. This theorem states that the probability of an event given another event can be calculated as the product of the probability of the second event Therefore, the probability of a girl having a "K-name" given that there is a girl in the club is 2/3.

The conditional probability of there being a girl in the club given that a girl has a K-name is 2/3.

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y=-2
4x-3y=18
solve by substitution

Answers

Answer: x= 3

Step-by-step explanation:

Will give friendliest, 10 points, look at the picture…

Will give friendliest, 10 points, look at the picture

Answers

The third option because each letter matches up with the other, meaning they are congruent. That makes the third option true.

I want pictures of how you did it on paper!

I want pictures of how you did it on paper!
I want pictures of how you did it on paper!

Answers

The volume of the composite figure is 145.68 cubic meters

Volume of composite figures

Composite figures are figures that is made up of more than one shape. The volume of the figure is expressed as:

Volume = volume of cylinder + volume of prism

Volume = πr²h + lwh

where

r is the radius of cylinder

h is the height

l, w and h are the length, width and height respectively

Substitute the dimensions

Volume = 3.14(2)² * 3 + (2.4*5*9)

Volume = 37.68 + 108

Volume = 145.68 cubic meters

Hence the volume of the composite figure is 145.68 cubic meters

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I1
30
mirror
50 ft
A student is walking to school and sees a mirror on the ground.
She stops a short distance from the mirror to practice her Geometry.
She knows her own height and the height of the school. She also knows
the distance from the mirror to the school from a previous Geometry activity,
She would like to calculate the distance she is
standing from the mirror.
The height of the school is 30 ft.
The distance from the school to the mirror is 50 ft.
The height of the student is 4.5 ft.
What is the distance d between the student and the mirror?
Show all your work.

I130mirror50 ftA student is walking to school and sees a mirror on the ground.She stops a short distance

Answers

By answering the presented question, we may conclude that Therefore, equation the distance between the student and the mirror is approximately 8.82 feet.

What is equation?

An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x Plus 3" equals the number "9." The purpose of equation solving is to determine the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. The variable x is raised to the second power in the equation "x2 + 2x - 3 = 0." Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.

Based on the given information

\((4.5 + 0) / d = 30 / (50 + d)\\(4.5 + 0)(50 + d) = 30d\\225 + 4.5d = 30d\\225 = 25.5d\\d = 8.82 feet\)

Therefore, the distance between the student and the mirror is approximately 8.82 feet.

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true or false f o r space s e t s space a space a n d space b comma space i f space a subset of or equal to b comma space t h e n space a intersection b space equals space a true false

Answers

False. If A is a subset of or equal to B, it does not necessarily mean that A intersection B equals A. The intersection of two sets A and B is defined as the set of elements that belong to both A and B.

If A is a subset of B, then every element of A also belongs to B. Therefore, the intersection of A and B must include all the elements of A. However, it may also include additional elements that belong to B but not to A.
For example, let A = {1, 2} and B = {1, 2, 3}. A is a subset of B since every element of A also belongs to B. However, the intersection of A and B is {1, 2}, which is not equal to A.
In summary, if A is a subset of or equal to B, it is possible for A intersection B to equal A, but it is not always true. The intersection can also include additional elements from B that do not belong to A.

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Which equation is a function of x?

Answers

Answer:

If you input a value of x then we get the output f(x) = y, which is the function of x. This is a function of x. Hence, x² = y is a function of x.

Step-by-step explanation:

The probability that a house in an urban area will be burglarized is 15%. If 30 houses are randomly selected, what is the mean of the number of houses burglarized?

Answers

The mean of the number of houses burglarized in this sample is 4.5 based on probability.

The probability of a house in an urban area being burglarized is 15%. This means that out of every 100 houses, 15 will be burglarized.

If 30 houses are randomly selected, we can use the binomial distribution to find the mean number of houses burglarized. The formula for the mean of a binomial distribution is:

Mean = n * p

where n is the number of trials (in this case, 30) and p is the probability of success (in this case, 0.15).

Substituting these values, we get:

Mean = 30 * 0.15
Mean = 4.5

Therefore, the mean number of houses burglarized out of 30 randomly selected houses is 4.5. Note that this is an expected value and may not represent the actual number of houses burglarized in any particular sample of 30 houses.
To find the mean of the number of houses burglarized, we can use the formula:

Mean = (Probability of success) x (Number of trials)

In this case:
- Probability of success (a house being burglarized) is 15%, or 0.15 as a decimal.
- Number of trials (randomly selected houses) is 30.

Using the formula, we get:

Mean = (0.15) x (30) = 4.5

So, the mean of the number of houses burglarized in this sample is 4.5.

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Graph the solution to this inequality on the number line. 2/3 z > 4/5

Answers

Answer: Can you post original picture of question please

Step-by-step explanation:

Answer: Open circle on 1 1/5 with arrow going right

Step-by-step explanation: Got correct on test

Graph the solution to this inequality on the number line. 2/3 z &gt; 4/5

Would you consider VFITX to be a good investment choice? Explain why or why not.

Answers

Yes, I would consider VFITX to be a good investment choice because it has  total return of 9.39%.

What is the best investment return?

For long-term stock market investments, the majority of investors would consider an average annual rate of return of 10% or above to be a decent ROI.

It shoud be noted that VFINX  is been seen as an investment having 5-year annualized total return of 9.39%  which can b e seen as  top third among its category peers and it has risk tolerance because VFITX are generally considered to be less risky  when it is been place side b y side to equity funds.

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Find the intercepts of the function 2x - y = 6.

Answers

So the given function is in standard form: Ax + By = C

To find the x-intercept set 'y' to 0 and vice-versa

Solve for x:

2x - 0 = 6

     +0    +0

2x = 6

/2    /2

x = 3

x-int: (3, 0)

Solve for y:

2(0) - y = 6

0 - y = 6

-0       -0

-y = 6

/-1   /-1

y = -6

y-int: (0, -6)

Pls help I only have 8 minutes left I need a detailed answer pls be quick

Pls help I only have 8 minutes left I need a detailed answer pls be quick

Answers

Answer: 2x+4 is the equation

the slope would be 2/1 and the y would be 4 (up) because thats where it is on the y axis

HELP Pls
Solve for x.

−35x+15>720

Drag and drop a number or symbol into each box to correctly complete the solution.

HELP PlsSolve for x.35x+15&gt;720Drag and drop a number or symbol into each box to correctly complete

Answers

Answer:

x > -1/4

Step-by-step explanation:

-3/5x + 1/5 > 7/20

Subtract 1/5 from each side, you'll have to change 1/5 to 4/20 so they have the same denominator. 7/20 - 4/20 + 3/20

-3/5x > 3/20

Divide each side by -3/5

To divide fractions, you flip the second fraction and then multiply so you would have 3/20 times -5/3.

-3 * 5 = -15

20 * 3 = 60

Answer is -15/60 which simplifies to -1/4

x > -1/4

What is the equation of the line through 1 2 so that the segment of the line intercepted between the axes is?

Answers

The equation of the line through (1, 2) so that the segment of the line intercepted between the axes is y+2x=4.

Let's use the slope-intercept form to find the equation of the line,

Hence the equation of the line would be of the form y=mx+c,

now the point at which the line intersects X-axis is (a,0), and the point at which it intersects Y-axis is (0,b).

⇒ m×a+c = 0

⇒a= − c/m

​and b=c+0 ⇒ b=c

Now, (1,2) is the midpoint of (a,0) and (0,b)

ie. 2=(0+b)/2​ ⇒ c/2 ​=2

                  ⇒c = 4

and  1=(a+0)/2​ ⇒ 1= −c/2m​

                       ⇒ m= −c​/2

                       ⇒ m= −2

∴ The equation of the line is given by y+2x=4.

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The complete question is-

What is the equation of the line through (1, 2) so that the segment of the line intercepted between the axes is?

a homeowner has budgeted $10,000 for some home remodeling. a contractor has told him the labor and the cost of materials will be about the same amount. the homeowner wants to have about $3,000 left over for furnishings. how much will the homeowner be able to spend on labor and on materials?

Answers

Answer:

$3,500 labor and $3,500 materials

Step-by-step explanation:

furnishings + labor + materials = 10,000

furnishings = 3000

3000 + labor + materials = 10,000

labor = materials

3000 + labor + labor = 10,000

2(labor) = 7,000

labor = 7,000/2

labor = 3,500

labor = materials = 3,500

The question is in the image. The final answer is also in the other image.

The question is in the image. The final answer is also in the other image.
The question is in the image. The final answer is also in the other image.

Answers

We have that because the central angle is 90°, the sector represents 1/4 of a circle with a radius of 10 yd.

So, length of the safety rail is given by:

\(l=\frac{1}{4}\cdot2\pi r\)

Where:

r = 10 yd

pi = 3.14

Substitute, we have:

\(l=\frac{1}{4}\cdot2(3.14)(10)=\frac{1}{4}\cdot62.8=15.7\text{ yd}\)

The Answer is 15.7 yd

Next, area of the deck is given by:

\(A=\frac{1}{4}\pi r^2\)

Substitute the values:

\(A=\frac{1}{4}(3.14)(10)^2=\frac{1}{4}(3.14)(100)=\frac{314}{4}=78.5\text{ yd}^2\)

The answer is 78.5 yd^2

Please help!

Identify the slope of the function: f(x)=2(3x-7)

A:3
B:6
C:7
D:2

Answers

Answer:

The slope is 6

Step-by-step explanation:

f(x)=2(3x-7)

Distribute the 2

f(x)=2*3x-2*7

f(x) = 6x -14

This is in slope intercept form

y = mx+b  where m is the slope and b is the y intercept

The slope is 6 and the y intercept is -14

The slope is 6

I don’t understand this could someone give me the answer?

I dont understand this could someone give me the answer?

Answers

Triangle ABC ~Triangle FED.

Triangle CBA ~ Triangle DFE.

What is a triangle?

A triangle is described as being equilateral if all of its sides are equal, isosceles if only two of its sides are equal, and scalene if all of its sides have different lengths. The term "isosceles right triangle" refers to a triangle that is both right and isosceles.

There are three sides and three angles in every triangle, some of which may be the same.

One is the smallest angle. We refer to this angle as being acute since it is narrower than a straight angle. Two is the biggest angle. We refer to this angle as being obtuse since it is greater than a straight angle.

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A competency test has scores with a mean of 82 and a standard deviation of 2. A histogram of the data shows that the distribution is normal. Between what two values do about 99.7% of the values lie? SHOW YOUR WORK

(statistics)

Answers

Using the Empirical Rule, it is found that 99.7% of the values lie between 76 and 88.

What is the Empirical Rule?

It states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.Approximately 95% of the measures are within 2 standard deviations of  the mean.Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

The mean is of 82.The standard deviation is of 2.

99.7% of the values lie within 3 standard deviations of the mean, hence between:

\(82 - 3(2) = 76\)

\(82 + 3(2) = 88\)

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In 2010, the population of a city was 119,000. From 2010 to 2015, the population grew by 6.3%. From 2015 to 2020, it fell by 3.7%. To the nearest whole number, by what percent did the city grow from 2010 to 2020?

Answers

Step-by-step explanation:

population in 2010=119000

population in 2015=11900*1.063=126497

population in 2020=126497*(1 - 0.037)=126491*0.963= 121817

answer=

\( \frac{121817}{11900} \times 100\)

=1.0237%

simple random sampling is a method associated with a high degree of generalizability.a. trueb. false

Answers

The statement is true. Simple random sampling is a method of selecting a sample from a larger population in which every member of the population has an equal chance of being selected for the sample.

This method is associated with a high degree of generalizability because it ensures that the sample is representative of the population. When a sample is representative of the population, the findings from the sample can be generalized to the entire population with a high level of confidence.

Simple random sampling is considered to be one of the most reliable and unbiased methods of sampling, making it a popular choice in many research studies.

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How do you solve #27-30?

How do you solve #27-30?

Answers

27.) Equation of a line passing through a point (x1, y1) and having a slope of m is:
y −y1 = m(x − x1)

Therefore, equation of a line passing through a point
(4, − 1) and having a slope of −3 is:

3x + y = 11

g the center for medicare services reported that there were 295,000 reported appeals for hospitalization and other medicare part a services. for this group, 40% of the first round appeals were successful. suppose ten first round appeals were just received. the results follow a binomial distribution. what is the probability of getting more than two heads? enter answer to four decimal places.

Answers

The probability that of getting more than two heads is 0.9537.

Describe the binomial probability?There are just two options for each appeal: either it has been accepted or it wasn't. A binomial probability is employed to answer this question since the chances that one appeal will be permitted is independent of the possibility that any other appeals will be granted.

The probability of precisely x successes per n repeated trials is known as a binomial probability, and X has only two possible outcomes.

P(X = x) = Cn,ₓ.pˣ(1 - p)ⁿ⁻ˣ   ...eq 1

Where  Cn,ₓ represents the number of distinct combinations of x items drawn from a group of n elements, as determined by the formula below.

Cn,ₓ = n!/x!(n - x)!

Where p is the likelihood that anything will happen.

10 appeals are necessary; n = 10.

Because 40% of appeals are successful; p = 0.4.

For the probability of getting at least two heads.

P(X ≥ 2) = 1 - P(X < 1)

P(X < 2) = P(X = 0) + P(X = 1)

Put the values in eq 1 and get the values for X.

P(X < 2) = 0.006 + 0.0403  = 0.0463

Now,

P(X ≥ 2) = 1 -  0.0463

P(X ≥ 2) = 0.9537

Thus, the probability that of getting more than two heads is 0.9537.

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explain how the bootstrap confidence interval and the randomization hypothesis test relate to one another in one to two sentences.

Answers

When it comes to Bootstrap confidence interval and randomization hypothesis both have a common ground, both of them are regarded as resampling methods that are efficient in measuring accuracy using intervals, prediction error, confidence, variance, bias etc. It also focuses on the crucial point of evaluating the variability of statistics.

The quick set of methods used to construct Bootstrap confidence interval and randomization distribution are similar considering the way they are used.

Furthermore, the thought of using Bootstrap confidence interval or randomization hypothesis depends on the research question. Hence,  choosing from both depends on the type of approach the researcher needs to elucidate the research.

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Use the diagrams below to find the lengths of the missing sides. Figures in each diagram are similar.

Use the diagrams below to find the lengths of the missing sides. Figures in each diagram are similar.
Use the diagrams below to find the lengths of the missing sides. Figures in each diagram are similar.

Answers

Answer:

You are going to need to use the sine rule for the right angled triangle and the cosine rule for the other triangle

if the cost of a type i error is high, a smaller value should be chosen for the . a. level of significance b. confidence coefficient c. test statistic d. critical value

Answers

A lower degree of significance should be selected if the cost of a Type I error is substantial.

The level of significance chosen for the hypothesis test is equivalent to the likelihood of making a type I error. Therefore, there is a 5% probability that a type I mistake could happen if the threshold of significance is 0.05.

Two things can lead to type 1 errors : poor research methods and random chance. No random sample, whether it be an A/B test or a pre-election survey, can ever accurately represent the population it is meant to characterize.

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The coordinates of the points A and B are ( 0 , -2 ) and ( 3 , 0 ) respectively.(a) What is the y - intercept of the line AB?(b) What is the gradient of the line AB?(c) What is the length of the line AB? Nowadays, volunteering work is really (1).. for society. Any effort no matter how big can make a (2). Everyone can volunteer; there is always a volunteer role for all interests and skills. You can use knowledge and experience to (3)., because there are children or adults in need of improving their reading and writing. Community cleanup is a great way to volunteer, (4) for students. Every community has an official cleanup day; you can just grab a bag and join in. Many non- (5) organizations, such as homeless shelter, orphanage.. , have an ongoing need for volunteers. You can take (6) administration duty, lobby for their campaign, and join a fund raising committee..if you are 18 or more, donating blood is another way to volunteer. (7) can volunteer, regardless of age, experience, and occupation. Anyone can make their own contribution to make this society a (8) place1. A. dangerous B. comfortable C. important D. charitable2. A. mistake B. mess C. fire D. difference3. A. teach B. talk C. give D. concentrate4. A. exactly B. especially C. independently D. traditionally5. A. fiction B. smoking C. profit D. stop6. A. on B. care C. after D. over7. A. No one B. Someone C. Everyone D. Anyone8. A. worse B. better C. best D. unsafe The two to six disconnects for a disconnecting means for a building supplied by a feeder shall be ______ Where was Harry Potter instructed to go to get to Hogwarts?A. Platform 2 1/2B. Platform 9 3/4C. Platform 12NOTE: This is a reading question Find the sum of fractions. Write the answer in simplest form 3/4+1/6 Compare and contrast the two type of vetos. ( pocket veto and standard veto) ANSWER QUICKLY PLEASE!!18= [tex]\frac{x}{2}[/tex] what does x equal? there are three children in a room, ages 3,4, and 5. If another 4 year old enters the room, the mean age:and variance will stay the same.will stay the same, but the variance will increasewill stay the same, but the variance will decreaseand variance will increase the portion of the vedas which records the mystical insights of the rishis is known as the . True or False: A reflection is when a figure moves 2 inches to the right and 4inches down * Use the properties of limits to help decide whether the limit exists. If the limit exists, find its value. lim x -> [infinity] 8x^3 - 4x - 7 / 9x^2 - 4x - 3 Select the correct choice below and, if necessary, fill in the answer box within your choicea. lim x -> [infinity] 8x^3 -4x - 7 / 9x^2 - 4x -3b. the limit does not exist and is neither [infinity] nor -[infinity] Please help me with these 3 questions. Discuss the events associated with Hurricane to include,including conditions that cause its formation, how it travels,types of effects and damages caused PART OF WRITTEN EXAMINATION:maintain a constant magnitude and directionA) telluric currentsB) dynmaic stray currentsC) steady state stray currents Your roommate asks you to taste the milk in the refrigerator to see if it is sour. What source of knowledge is he asking you to rely on The atomic number equals:O The number of protons and the number of neutrons.O The number of protons and the number of electrons.The number of electrons and the number of neutrons.O The number of protons plus the number of neutrons. Eight-year-old Tiffany has been spanked frequently by her parents, but she does not appear to have experienced many negative outcomes due to this punishment. What culture is Tiffany MOST likely a part of Yoshiko is a real estate agent. Thismonth she earned commission of $5,750,which is $2.480 more than she earnedlast month. Which equation can be usedto find last month's commission? this is pain need help and to be explained 14. Are the two triangles similar?