4y + 19 = x
3y - x= -13

Answers

Answer 1

Answer:

Do you need a step by step explaination on hiw to get the answer x= -13?


Related Questions

Solve 27* 9

I will give 100 points!!!!!!

Answers

27 times 9 is 243 if that was your question

27* 9 = 243 there your welcome and bless you

A state forest service is conducting a study of the people who use state-operated camping facilities. The state has two camping areas, one located in the mountains and one located along the coast. The forest service wishes to estimate the average number of people per campsite during a popular weekend when all sites are expected to be used. There are 50 campsites in the mountains and 100 along the coast. From experience, the forest service knows that most sites in the mountains contain from 1-6 people and most sites along the coast contain from 1-10 people. Suppose the forest service can afford to conduct 20 interviews (e.g. they can select 20 campsites) (because they are asking many other questions in addition to number of people using the campsite and they want to do the interviews in person).
Using Neyman allocation, how would you suggest they allocate the 20 interviews among these 2 strata to minimize the standard error of the estimate of the overall average number of people per campsite?

Answers

Answer:

Allocation: 4 samples should be from the mountain and 16 from along the coast.

Step-by-step explanation:

Neyman allocation is technique of sample allocation used in cases of stratified sampling.

The formula to compute the best sample size of each stratum is:

[tex]n_{h}=n\times \frac{(N_{h}\times SD_{h})}{\sum\limits^{k}_{i=1}(N_{i}\times SD_{i})}[/tex]

The information provided is:

[tex]N_{m}=50\\N_{c}=100\\n=20\\[/tex]

Compute the range for the number of people at the mountain campsite as follows:

[tex]R_{m}=6-1=5[/tex]

Then the standard deviation for the number of people at the mountain campsite will be:

[tex]SD_{m}=\frac{R_{m}}{4}=\frac{5}{4}[/tex]

Compute the range for the number of people along the coast campsite as follows:

[tex]R_{c}=10-1=9[/tex]

Then the standard deviation for the number of people along the coast campsite will be:

[tex]SD_{c}=\frac{R_{c}}{4}=\frac{9}{4}[/tex]

Compute the sample size for the mountain campsite as follows:

[tex]n_{m}=n\times \frac{(N_{m}\times SD_{m})}{(N_{m}\times SD_{m})+(N_{c}\times SD_{c})}[/tex]

    [tex]=20\times \frac{(50\times (5/4))}{(50\times (5/4))+(100\times (9/4))}\\\\=20\times 0.2174\\\\=4.348\\\\\approx 4[/tex]

Compute the sample size for along the coast campsite as follows:

[tex]n_{c}=n-n_{m}=20-4=16[/tex]

Thus, 4 samples should be from the mountain and 16 from along the coast.

f(x) = 4x + 3 and g(x) = x - 2
Solve:
g(f(x)) =

Answers

Answer:

I don't know i just came to get the 20 points THX

Step-by-step explanation:

You should ask your teacher

Select the correct answer. Which function has exactly three distinct real zeros? A. h(x) = (x − 9)2(x − 4)2 B. h(x) = x(x + 7)2 C. h(x) = (x − 3)(x + 1)(x + 3)(x + 8) D. h(x) = (x − 2)2(x + 4)(x − 1)

Answers

Answer:

if you have LOF it is explained very well in there. When I was doing that kind of problem that was so helpful. Hope you find the same.

Step-by-step explanation:

Answer:

attached.

Step-by-step explanation:

9(9r + 3s - 9)
Evaluate this

Answers

Answer: 81r +27s-81

Explanation:
9×9 = 81 r
9×3 = 27 s
9x-9 = -81

Another way to write -7/8

Answers

Answer:

In decimal form:

-0.875

Step-by-step explanation:

-7 divided by 8 = -0.875

-0.875 is another way

What is the sum of (2x2 + 5x -3) and (-3x2 -10 + x2)​

Answers

Answer:5x-13

Step-by-step explanation:

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[tex](2 {x}^{2} + 5x - 3) + ( - 3 {x}^{2} + {x}^{2} - 10) = \\ [/tex]

[tex]2 {x}^{2} - 2 {x}^{2} + 5x - 3 - 10 = [/tex]

[tex]5x - 13[/tex]

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A recent article in the paper claims that business ethics are at an all-time low. Reporting on a recent sample, the paper claims that 31% of all employees believe their company president possesses low ethical standards. Suppose 20 of a company's employees are randomly and independently sampled and asked if they believe their company president has low ethical standards and their years of experience at the company. Could the probability distribution for the number of years of experience be modelled by a binomial probability distribution?

Answers

Answer:

The correct solution is "0.127128".

Step-by-step explanation:

The given values are:

p = 0.31

n = 20

Now,

[tex]p(8<x<12)=p(x=9)+p(x=10)+p(x=11)[/tex]

                     [tex]=20C_{9}(0.31)^9\times (0.69)^{11}+20C_{10}(0.31)^{10}\times (0.69)^{10}+20C_{11}\times (0.31)^{11}\times (0.69)^{9}[/tex]

[tex]=0.074955+0.037043+0.015130[/tex]

[tex]=0.127128[/tex]

John earns $6 per hour washing dishes. How many hours must he work to make at least $150?

Answers

You would do 150 divided by 6 which would be 25.

A line has a slope of -3/4 and passes through the point (-5, 4) which is the equation of the line?
A: y=-3/4x + 1/4
B: y= -3/4x + 4
C: Y= -3/4x - 2
D: y= -3/4x -1/4

Answers

Answer:

Correct choice: A

[tex]y=-3/4x+1/4[/tex]

Step-by-step explanation:

The point-slope form of the equation of a line is:

[tex]y-k=m(x-h)[/tex]

Where m is the slope and (h,k) is a point through which the line passes.

We are given the slope of a line m=-3/4 and the point (-5,4). Substituting:

[tex]y-4=-3/4(x+5)[/tex]

Operating:

[tex]y-4=-3/4x-15/4[/tex]

[tex]y=-3/4x-15/4+4[/tex]

[tex]\boxed{y=-3/4x+1/4}[/tex]

Correct choice: A

Answer:

It’s a no cap

Step-by-step explanation:

I took the test on edge

RELATING CONCEPTS For Individual or Group Work (Exercises 105-108)

A manufacturer has fixed costs of $1000 to produce gizmos. Each gizmo costs $5 to

make. The fixed cost to produce gadgets is $750, and each gadget costs $3 to make.

Work Exercises 105-108 in order.

105. Write an expression for the cost to make x gizmos. (Hint: The cost will be the sum

of the fixed cost and the cost per item times the number of items.)

106. Write an expression for the cost to make y gadgets.

107. Write an expression for the total cost to make x gizmos and y gadgets.

108. Simplify the expression from Exercise 107.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Fixed cost to produce gizmo = $1000

Cost to produce each gizmo = $5

Fixed cost to produce gadget = $750

Cost to produce each gizmo = $3

A.) Expression to make x gizmo:

Fixed cost + 5x

$1000 + 5x

B.)Expression for cost of making y gadget:

Fixed cost + 3y

$750 + 3y

C.) Cost of making x gizmo and y gadget :

($1000 + 5x) + ($750 + 3y)

D.) $1750 + 5x + 3y

Identify the coefficients: -3h - 2h + 6h +9

Answers

Answer:

-23h

Step-by-step explanation:

It’s -3, 2, 6 is the answer

can someone solve this please 5(5t + 1) = 25t – 7

Answers

It’s either no solution or just false depending on the answer choices you have

solving steps:
5(5t+1)=25t-7
25t+5=25t-7
5= -7

which is not true

someone please help!!!!!!!!!

Answers

Answer:41+108+17=166

And 8×5/6×17=680/30

Step-by-step explanation:I might be wrong bit Hope its right and it helps ;)

There are 252 players on 18 teams. How many players are on each team?

Answers

there are 14 players on each team

Answer:

14

Step-by-step explanation:

252 divided by 18 = 14

hope this helps! :D

Read the blog entry below and answer the question that follows:

At first I dreaded going to sixth grade camp. I was sure the food would be poisonous, I would freeze to death in my sleeping bag, and the other kids in my cabin would never talk to me. But was I wrong! In fact, it was the best week ever! I went horseback riding and participated in a ropes activity with a zip line course. After the course, I climbed to the top of a pole using only ropes and carabiner clips, and then I rappelled off the top. I even made a new best friend. Oh, by the way, the food was delicious. It tasted better than my mom's! (But don't tell her.)

Review the first sentence:

At first I dreaded going to sixth grade camp.

What is the connotation showing here?

A The author was impatient and could not wait to get to camp.
B The author was worried he/she might not enjoy camp.
C The author welcomed the opportunity to go to camp.
D The author was excited about going to camp.

Answers

The answer might be B

What is the equation of the polynomial graphed below? NEED HELP ASAP! Will give Brainliest!

Answers

Answer: The answer I believe is 4

You are playing a video game. For each diamond you collect, you earn 110 points. You also earn 80 bonus points by completing the level in less than 2 minutes. You need to earn more than 1620 points to continue on to the next level. Write and solve an inequality that represents the numbers d of diamonds you must collect in less than 2 minutes to advance to the next level.

Answers

Answer:

110d + 80 > 1620

d > 14

Step-by-step explanation:

The amount of points from collecting diamonds can be represented by 110d, since you get 110 points for each diamond, d

Add 80 to this to represent the bonus points.

Use a greater than inequality, because you have to get more than 1620 points.

Put this all together:

110d + 80 > 1620

Then, solve for d:

110d + 80 > 1620

110d > 1540

d > 14

So, you have to collect more than 14 diamonds in less than 2 minutes in order to advance to the next level.

Please Help Fast! :(


Six teams are out on the field playing soccer. The teams all have the same number of players. The head coach asks for 2 players from each team to come help him move some equipment. Now there are 78 players on the field. Write and solve an algebraic equation whose solution is the number of players, p, on each team.

Please write the equation and answer please

Answers

6x - 12 = 78
6x = 90
x = 15

There are 15 players on each team

what are the coordinants of the turning point

Answers

ANSWER: the turning point of y = a ( x + b ) 2 + c y=a(x+b)^2+c y=a(x+b)2+c has coordinates ( − b , c ) (-b, c) (−b,c).

3.08 + 8.94 Find the sum

Answers

Answer:

5.86

Step-by-step explanation:

3.08+8.94=12.02
the answer is 12.02

1) 2,340/9=
What’s the answer

Answers

Answer:

260

Step-by-step explanation:

i can do it mentally

Please help with question plaaseeee

Answers

Answer:

Yes it is.

Step-by-step explanation:

The graph is proportional because

it is in a straight line in the graph.

Hope this helps! <3

Help Please ????!!!?

Answers

Answer:Irrational numbers :)

Step-by-step explanation:

Complete the point-slope equation of the line through (2,3)(7,4)
y-4=

Answers

y-4=1/5(x-7) is the answer

HEY I NEED HELP ASAP!!!!!!!!!!!!!
this is the problem I need help with
n - 25/4 =3

Answers

Answer:

n = 37/4

Step-by-step explanation:

that's the answer to you question

What is the following equal to 7 times 10^3

Answers

Answer:

7000

Step-by-step explanation:

10^3=1000

1000*7=7000

7000 is answer

1000×7 = 7000

estimate 3,156-2,163 by first rounding each number to the nearest hundred ​

Answers

Answer:

3

,

154

,

163

3,154,163

Step-by-step explanation:

Indicate the range of the function. PLEEEAAASSEEEEE!!!!

Answers

Answer:

The right answer is D

(- infinite,6]

In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment has a mean of $2,325 and a standard deviation of $270. The distribution of the monthly rent does not follow the normal distribution. In fact, it is positively skewed. What is the probability of selecting a sample of 50 one-bedroom apartments and finding the mean to be at least $2,245 per month

Answers

Answer:

0.982

Step-by-step explanation:

Given that:

Mean (μ) = 2325

Standard deviation (σ) = 270

From the central limit theorem ; the Distribution of 50 sample means will be normally distributed

Finding the mean to be at least $2245 per month;

x = 2245

Using the Z score relation :

Zscore = (x - μ) / (σ/√n)

Zscore = (2245 - 2325) / (270/√50)

Zscore = - 80 / 38.183766

ZSCORE = - 2.0951312

= - 2.1

P(Z > - 2.1) = 0.982 ( from the Z probability Calculator).

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