Category: Mathematics

Homework #7 – Systems of Equations: Applications and Problem-Solving
Directions: Complete the following problems on a separate sheet of paper. Show all work.
For the following problems, identify the variables and solve.
1. At Big Al’s hot dog stand, 2 hot dogs and 3 sodas cost $7. The cost of 4 hot dogs and 2
sodas is $10. Determine the cost of a hot dog and the cost of a soda.
2. The Wing Place sells both regular size and jumbo size orders of Buffalo chicken wings.
Three regular orders and five jumbo orders of wings cost $67. Four regular and four
jumbo orders of wings cost $64. Determine the cost of a regular order of wings and a
jumbo order of wings.
3. Copier Rental an office equipment company rents copiers for a monthly fee plus a fee
per copy. Julie rents a copier and was charged $175 for making 1500 copies in March and
$223 for making 2300 copies in April. What is the monthly fee and what is the fee per
copy?
4. Franco runs a grocery store. He wishes to mix 40 pounds of coffee to sell for a total cost
of $219. To obtain the mixture, he will mix coffee that sells for $5.20 per pound with
coffee that sells for $6.30 per pound. How many pounds of each coffee should he use?
5. Rick, a sales associate for MJC Security, earns a monthly salary plus a commission on his
sales. In January his total compensation on sales of $14,000 was $4400. In February his
total compensation on sales of $10,000 was $3800. Determine Rick’s monthly salary and
his commission rate.
6. Linda recently purchased a Kawasaki Jet Ski and a trailer for a total price of $11,200.
The price of the Jet Ski was $1000 more than 5 times the price of the trailer. Determine
the price of the Jet Ski and the price of the trailer.
7. One serving of lemonade has more sugar than one serving of Coca-Cola. Lemonade has
17 fewer grams of sugar than twice the amount that Coca-Cola has. The difference in the
amount of sugar in lemonade and in Coca-Cola is 8 grams. Determine the amount of
sugar in one serving of lemonade and the amount of sugar in one serving of Coca-Cola.

Please provide an answer that is 100% original and do not copy the answer to this question from any other website since I am already well aware of this. I will be sure to check this.
Please be sure that the answer comes up with way less than 18% on Studypool’s internal plagiarism checker since anything above this is not acceptable according to Studypool’s standards. I will not accept answers that are above this standard.
No AI or Chatbot! I will be sure to check this.
BY DAY 6
Journal Assignment – you may complete this via video, or simply submit a written entry. Make sure to submit it in the proper location.
I know some of you have had technology problems with the first video assignment. So, you have the choice of video or print for your submission.
It’s a simple reflection of how you used your course to refine your qualitative research skills, what content you will carry forward into the dissertation, and where you need to strengthen skills, subject matter knowledge, familiarity with Walden dissertation procedures, etc.
Progress: What progress have you made in developing your idea for a research topic for your capstone? What have you learned from the course that has contributed to your clarity?
Problems: What obstacles have you discovered in the process of developing your research topic in this course? What still remains unknown or unclear?
Plans: What are you planning as the next step for transitioning into the capstone process? Who or what resources do you think will be important in creating a research proposal that meets the criteria for quality?
Type or video your thoughts. Submit them AFTER you finish your Final project.
Submit a video response reflecting on your next steps in preparation for the beginning of your capstone. Use this points to guide your reflection:
How qualitative research and their proposed research aligns with Walden’s mission of social change;
What was learned about conducting qualitative research;
Consider your next steps for preparation for the dissertation –
Progress: What progress have you made in developing your idea for a research topic for your capstone? What have you learned from the course that has contributed to your clarity?
Problems: What obstacles have you discovered in the process of developing your research topic in this course? What still remains unknown or unclear?
Plans: What are you planning as the next step for transitioning into the capstone process? Who or what resources do you think will be important in creating a research proposal that meets the criteria for quality?
***past work has been uploaded for reference.
Requirements: See Comments Times New Roman Size 12 Font Double-Spaced APA Format Excluding the Title and Reference Pages
Please provide an answer that is 100% original and do not copy the answer to this question from any other website since I am already well aware of this. I will be sure to check this.
Please be sure that the answer comes up with way less than 18% on Studypool’s internal plagiarism checker since anything above this is not acceptable according to Studypool’s standards. I will not accept answers that are above this standard.
No AI or Chatbot! I will be sure to check this.
Please be sure to carefully follow the instructions.
No plagiarism & No Course Hero & No Chegg. The assignment will be checked for originality via the Turnitin plagiarism tool.
Please be sure to include at least one in-text citation in each body paragraph.
Please be sure to use credible or scholarly sources published within the last 5 years.

Recent research on climate change predicts that extreme
weather will increase the risk of severe and mild flooding in the next two
years. The study also finds that if any flooding event happens this year, there
will be no risk of flooding occurring in the following year.
The research suggested a 40 percent chance of severe
flooding at the end of this year (𝑃𝐹1​) and a 20 percent chance of
mild flooding (𝑃𝑀F1​). Otherwise, there will be no flooding (𝑃NF1​). If there is no flooding this
year, there is still a 30 percent chance of severe flooding and a 10 percent
probability of mild flooding in the next year (𝑃𝑀F2​).
In response, the NSW government is considering two
strategies:
S1:
Investing in an early warning system – or the system (E)
S2:
Not investing in the new system, remaining in the status quo (NE).
To install the system, the NSW Government must spend
$1,350,000 on the system’s development (𝐶𝑅​) and $200,000 on the
installation cost (𝐶C). Once installed, the system would
last for 20 years. Note that the government may also install the system next
year if they decide not to install it this year.
Economists hired by the government estimated the social cost
of the floods. Without an early warning system, the cost of severe and mild
flooding to society is estimated at $4.5 million (𝐶𝑆𝐹|𝑁𝐸​) and $2.5 million (𝐶𝑀𝐹|𝑁𝐸),
respectively. The government can respond swiftly and evacuate earlier using the
early warning system. Given that, severe flooding and mild flooding would only
cost the economy $1.5 million (𝐶𝑆𝐹|𝐸​) and $50,000 (𝐶𝑀𝐹|𝐸​), respectively.
(a) Construct the decision tree with all the relevant
nodes. Label each branch with corresponding probabilities and outcomes. Use a
rectangular shape to represent the decision node and a circle shape to
represent the chance node.
(b) Discuss your decision tree. Explain what your
decision rule is according to the graph.
(c) Suppose the social discount rate is 6%; which
policy should the government undertake at the beginning of this year?

Using the Clinical Trial on breast cancer dataset. Perform a Kaplan-Meier Analysis or the Log-Rank Test to determine the survival curve for the breast cancer survivors. H0 The risk of 50% of the participants dying from breast cancer will occur within five years. (Null Hypothesis) H1 The risk of 50% of the participants dying from breast cancer does not occur within five years. (Alternative Hypothesis) Ensure to submit the following requirements for the assignment: Review the analysis from the standpoint of how many patients survive over the seven-year time period that the clinical trial covered. Present your findings as a Survival Time chart in a Word document, with a title page, introduction explaining why you would conduct a survival analysis, a discussion where you interpret the meaning of the survival analysis, and a conclusion should be included. Your submission should be 2-3 pages to discuss and display your findings. Provide support for your statements with in-text citations from a minimum of two scholarly, peer-reviewed articles. One of these sources may be from the class readings, textbook, or lectures, but the others must be external. The Saudi Digital Library is a good place to find these sources and should be your primary resource for conducting research. Follow APA 7th edition and Saudi Electronic University writing standards.

Solve the attached performance skill.  Make sure to be neat, creative and avoid plagiarism.
You can do it either on a cardboard, A3 or A4 paper.
you need to use this document. 

13. In a survey about the safety of air travel, 69% of the 1044 surveyed from the United States said that they consider air travel to be safe.
a) Define p and p̂ for this problem. Which is the one that we will estimate a confidence interval? Which is the one that we know from the survey and what is it?
b) Find a 95% confidence interval for the population proportion of people that think U.S. air travel is safe.
c) From this survey, can we be 95% confident that the majority of people think that U.S. air travel is safe?

Cost of College Project
1. ACADEMIC PLAN
In this assignment, you will develop an estimate of the cost of your college education.
Write 2-3 sentences summarizing your academic goals. Indicate your major (if you have
chosen one) and all levels of the degree(s) you hope to earn. (Associates, Bachelors,
Masters, or Doctorate degree) If you are likely to attend any colleges in addition to Rose
State College, include them in your summary. Also indicate your intended career path.
In what job or field of work do you hope to to find yourself when your degree is
complete?
2. CALCULATE TUITION AND FEES
Look up the number of credit hours you will have to earn for the degree(s) you are
pursuing and the rate of tuition and hourly fees for the college(s) you plan to attend. Use
the box below to explain (in detail) how you would calculate the cost of your degree(s).
Remember unit pricing for college tuition and fees is defined by the number of credit
hours. State the unit price for tuition and fees (per credit hour) for the college(s) you
plan to attend, then show how the unit price is used to compute your total cost of
earning a degree. What TOTAL amount of money will your degrees cost? (Do not
include books or living expenses. Do not include discounts in the form of scholarships,
grants, or GI money.) Note: Associates degrees require a minimum of 62 hours.
Bachelors degrees require a minimum of 124 hours total. (includes the 62 hours earned
at Associate level)
3. STUDENT LOANS
Pretend you are going to borrow the full amount of tuition and fees needed to earn your
degree(s). This is the amount you calculated in the previous question. Do some research
on current interest rates for student loans. Then, use an online loan calculator to
determine what your monthly payment would be for a 15 year loan at the current interest
rate. Your response should include the following.
● Total amount borrowed
● Rate of interest
● Monthly Loan Payment
● Total amount of interest paid over the life of the loan
● Total installment price (total principal & interest)
4. COST/BENEFIT ANALYSIS
Do some research on starting salaries for the job or field of work in which you hope to
find yourself upon graduation. In the box below, write a paragraph summarizing the
impact a student loan would have on your monthly income. Your response should
include the following.
● Job title or role in a specific field of work
● Realistic annual salary based on your education and experience
● Projected monthly income
● Calculated monthly loan payment (from previous question)
● What percent of your monthly income will go toward the student loan?
5. KEEPING IT REAL
Think about how closely this exercise models your situation. How are you actually
covering the cost of your tuition and fees? (out of your own pocket, family funds,
scholarship money, financial aid, GI bill, etc.) If you are paying your own way through
college, will you use a student loan to complete your degree? In the box below, write a
paragraph summarizing how your particular circumstances may resemble or vary from
the scenario laid out in this assignment, and indicate any adjustments you would make in
your own plans.
ATTACHED IS AN EXAMPLE OF THE COLLEGE PRICES. I ONLY PLAN ON OBTAINING MY ASSOCIATES DEGREE. MY COLLEGE IS BEING PAID BY THE PELL GRANT AND NOTHING OUT OF POCKET. I DO NOT PLAN TO WORK IN THE FIELD MY DEGREE IS IN CURRENTLY WORKING IN THE MENTAL HEALTH FIELD PLAN TO STAY THERE P AY IS 19.48 HRLY

I have uploaded the instructions below. Remember to address each task separately and use the GeoGebra graphing tool 
https://www.geogebra.org/calculator  . Thank you.

Note: Part 2 of the project requires your sample mean and standard deviation from Part 1. If you were unable to find this information in Part 1, you may use a sample mean of 20.3 and a std. deviation of 11.34 for Part 2.
Important Info
The order was placed through a short procedure (customer skipped some order details).
Please clarify some paper details before starting to work on the order.
Type of paper and subject
Number of sources and formatting style
Type of service (writing, rewriting, etc)

Please see attached files for questions.
Answers should be step by step and easy to understand.
Please label questions and answers.