Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

China population density per square mile

11/11/2021 Client: muhammad11 Deadline: 2 Day

Lesson 2.4

Introduction

Course Objectives

This lesson will address the following course outcomes:

· 9. Compare proportional relationships represented in different ways, considering units when doing so.

Specific Objectives

Students will understand that

· population density is a ratio of the number of people per unit area.

· population density may be described proportionately to compare populations.

Students will be able to

· calculate population densities.

· calculate population density proportions from density ratios.

· compare and contrast populations via their densities.

Problem Situation 1: Using Ratios to Measure Population Density

Earth’s human population has grown from about 1 billion people to nearly 7 billion in the last two centuries. However, populations in different regions do not always grow uniformly. For example, populations tend to increase in areas where people already live close enough to one another to find mates. On the other hand, crowded populations decrease when deadly diseases such as smallpox or Ebola virus, sweep through them. In this lesson, you will compare geographic regions by their population densities.

Definition: The population density of a geographic region is a ratio of the number of people living in that region to the area of the region. Population density ratios are “reduced” by division in order to compare them with a standard area measurement.

Art Stage

Example: Performance Art Stage

Suppose an artist created a performance art event. On one stage that measures 20 feet by 20 feet there are 100 people spaced so that each person stands on a 2 foot by 2 foot square.

https://s3.amazonaws.com/wamapdata/ufiles/2/M96-2-4-stage.jpg

The population density of the stage could be expressed as 100 people per 400 square feet, 100 people400 square feet100 people400 square feet .

Or this could be rewritten with a 1 in the numerator to indicate how much space each person has. To do this, divide the numerator and the denominator values by 100, getting 1 person per 4 square feet, or it could be expressed as fractions: 100 people400 square feet=1 person4 square feet100 people400 square feet=1 person4 square feet .

Population density is often expressed as the number of people per square unit. To rewrite the ratio this way, express the ¼ as the decimal 0.25: 1 person4 square feet=0.25 person1 square foot1 person4 square feet=0.25 person1 square foot .

#1 Points possible: 5. Total attempts: 5

In another part of the performance art event, on a nearby patio of size 10 feet by 10 feet there are 25 people, each standing on his or her own 2 foot by 2 foot square. How does this population density compare with that of the stage described above?

· It would be larger

· It would be smaller

· It would be the same

#2 Points possible: 5. Total attempts: 5

Remember the 100 people evenly spaced on the 20 foot by 20 foot stage. Next they move around to form conversation subgroups by clustering close together. How does this affect the population density of the stage?

· It would be larger

· It would be smaller

· It would be the same

A Classroom

Imagine a classroom of students.

#3 Points possible: 6. Total attempts: 5

https://s3.amazonaws.com/wamapdata/ufiles/2/M96-2-4-class1.JPG

In the picture above, there are 30 students standing in a 18 foot by 20 foot rectangle. Calculate the population density (rounded to 2 decimal places), selecting the appropriate units.

Suppose we wanted to compare the densities of several populations, knowing the number of people in each population and where they live. Using the ideas from the last few problems, we could do this by dividing the number of people by the area in which they live (in square units: square miles, square kilometers, square feet, etc.).

Consider the room to be a “county” containing a city, a suburb, and rural area. In the picture below an area has been designed a "city", another area has been designated a "suburb", and the remaining space is the "rural" area. The students have moved so that the city is fairly crowded, the suburb is less crowded, and the rural area has only a few people.

#4 Points possible: 12. Total attempts: 5

https://s3.amazonaws.com/wamapdata/ufiles/2/M96-2-4-class2.JPG

In the picture above, 16 students have crowded into the 8ft by 8ft region designated the "city", while 12 students are in the 12ft by 10ft region designed the "suburb". Calculate the population density of each region (rounded to 2 decimal places), selecting the appropriate units.

Population density of the "city" region:

Population density of the "suburb" region:

#5 Points possible: 5. Total attempts: 5

Compare the population density of the city and the suburb regions.

The population density of the city is times the population density of the suburb.

#6 Points possible: 5. Total attempts: 5

Did the population density of the “county” (the classroom as a whole) change when people moved to the city and suburb (as compared to when they were scattered throughout the room)?

· No, the population density of the country didn't change

· Yes, the population density is smaller after the move

· Yes, the population density is larger after the move

Notice a few important things:

· In the last set of problems, the density of the whole classroom was smaller than the density of the "city" region, even though there were more people in the whole classroom. The point is that the density depends on both the number of people and the area, and that more total people doesn't necessarily mean a higher density.

· A ratio such as population density is useful because it helps you compare groups and areas of different sizes. You could compare the density of your classroom to the density of a group in the gymnasium because you are taking the ratio down to a unit rate (number of people per 1 square foot). This standardizes the measurement. This is a common use of ratios.

· A limitation of population density is that it measures an “average” as if the population were spaced out evenly. In a country or state, the population density would be greater in the cities, and smaller in the rural areas. Looking at the average population density for a country ignores this.

#7 Points possible: 6. Total attempts: 5

Imagine a very crowded large city, with each person standing on his or her own 2-foot-by-2-foot square, where the squares are adjacent. Calculate the population density per square mile. (1 mile = 5,280 feet)

Try the problem on your own first. If you are having trouble after 2 tries, we will break it down.

Population density: people per square mile

#8 Points possible: 5. Total attempts: 5

Imagine an average city like Lakewood or Puyallup, where each person could stand on his or her own 100-foot-by-100-foot square. Calculate the population density per square mile, to the nearest whole person.

people per square mile

China

Problem Situation 2: Making Comparisons with Population Density

How crowded is China, compared to the United States?

#9 Points possible: 5. Total attempts: 5

In 2010, in the United States, approximately 309,975,000 people occupied 3,717,000 square miles of land. In China, approximately 1,339,190,000 people lived on 3,705,000 square miles of land. Use this information to answer the following questions.

Using your estimation skills, is the density of China more or less dense than the United States?

· China is more dense than the United States

· China is about the same density as the United States

· China is less dense than the United States

#10 Points possible: 5. Total attempts: 5

Using estimation and the numbers from the last problem, determine the best whole number that completes the sentence below.

China's population density is approximately times as dense as that of the United States

#11 Points possible: 15. Total attempts: 5

Calculate more precisely, to one decimal place, the densities per square mile of the Chinese and U.S. populations.

Density of U.S.: people per square mile

Density of China: people per square mile

Based on those calculations, complete the sentence below with a value accurate to one decimal place.

China's population density is times as dense as that of the United States

HW 2.4

#1 Points possible: 5. Total attempts: 5

Which of the following was one of the main mathematical ideas of the lesson? The questions refer to the following quantities:

50 people/mi2

20 ft/5 sec

34%

· All three figures are population densities.

· Only the first two figures are ratios.

· All three of the figures are ratios.

· The second figure could be written as 4 ft/sec.

#2 Points possible: 15. Total attempts: 5

Use the picture below to answer the questions. https://wamaps3.s3.amazonaws.com/qimages/2.1.1.1.PNG

a. What is the density of the stars in Rectangle B? Round to the nearest hundredth of a star per square foot. stars/ft2

b. What is the density of the stars in Rectangle A (Note: The stars in Rectangle B are also in Rectangle A). Round to the nearest hundredth of a star per square foot. stars/ft2

c. Suppose three new stars were added in the gray part of Rectangle A. Which of the following statements would be correct?

· The density of Rectangle A would increase. The density of Rectangle B would increase.

· The density of Rectangle A would decrease. The density of Rectangle B would decrease.

· The density of Rectangle A would decrease. The density of Rectangle B would stay the same.

· The density of Rectangle A would increase. The density of Rectangle B would stay the same.

· The density of Rectangle A would stay the same. The density of Rectangle B would increase.

#3 Points possible: 10. Total attempts: 5

Wikipedia states the following about Anchorage, Alaska: “The city constitutes more than 40 percent of the state’s total population.1

a. Calculate the population density for Anchorage, based on a 2010 population of 291,826 people living on 1,961.1 square miles. Round to the nearest person per square mile. people/mi2

b. Wikipedia also says that the small Alaskan town of Ketchikan has the densest population in Alaska. Ketchikan had a population of 7,368 in 2010 and an area of 4.1 square miles. Calculate the population density of Ketchikan. Round to the nearest person per square mile. people/mi2

#4 Points possible: 5. Total attempts: 5

The following information comes from the lesson:

Population

Land Area (sq. miles)

United States

309,975,000

3,717,000

China

1,339,190,000

3,705,000

In India, about 1,184,639,000 people live on 1,269,000 square miles of land2. Which of the following statements is false?

· The population density of India is approximately three times that of China.

· The population density of India is approximately 11 times the population density of the United States.

· The population densities of these three countries ranked from smallest to largest are United States, India, and China.

· The population density of the United States is approximately 83.4 people per square mile. That is smaller than the population densities for China and India.

#5 Points possible: 5. Total attempts: 5

Which of the following population densities are equivalent to a density of 20 people/mi2? There may be more than one correct answer.

· 1 person/0.5 mi2

· 1 person/0.05 mi2

· 200 people/2 mi2

· 100 people/5 mi2

· 1 person/0.2 mi2

#6 Points possible: 10. Total attempts: 5

One way to measure a country’s economy is per capita gross domestic product, or per capita GDP. This is the value of all the products and services produced in a country over the course of a year divided by its population.

a. According to the CIA’s The World Factbook, in 2010, the United States had a per capita GDP of $47,400. If the population was about 309 million, which of the following is a reasonable estimate for the GDP of the United States?

· $60 trillion

· $60 billion

· $15 billion

· $15 trillion

· $2.3 trillion

b. Also according to The World Factbook, in 2010, China had a per capita GDP of $7,400 and a population of around 1,337,000,000. Which of the following is a reasonable estimate for the GDP of China?

· $60 trillion

· $60 billion

· $15 billion

· $2.3 trillion

· None of the above

#7 Points possible: 5. Total attempts: 5

The population of Nebraska is 1,826,341, and its population density is 23.8 people per mi2. The population of New Hampshire is 1,316,470, and its population density is 146.8 people per mi2. Which of the following statements is a valid interpretation of this information?

· The population of New Hampshire is approximately 139% of the population of Nebraska.

· Nebraska is approximately six times more densely populated than New Hampshire.

· The population of Nebraska is approximately 72% of the population of New Hampshire.

· New Hampshire is approximately six times more densely populated than Nebraska.

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Calculation Guru
Top Academic Guru
High Quality Assignments
WRITING LAND
Homework Master
Quality Homework Helper
Writer Writer Name Offer Chat
Calculation Guru

ONLINE

Calculation Guru

I am an experienced researcher here with master education. After reading your posting, I feel, you need an expert research writer to complete your project.Thank You

$33 Chat With Writer
Top Academic Guru

ONLINE

Top Academic Guru

I am a professional and experienced writer and I have written research reports, proposals, essays, thesis and dissertations on a variety of topics.

$20 Chat With Writer
High Quality Assignments

ONLINE

High Quality Assignments

After reading your project details, I feel myself as the best option for you to fulfill this project with 100 percent perfection.

$16 Chat With Writer
WRITING LAND

ONLINE

WRITING LAND

I have read your project description carefully and you will get plagiarism free writing according to your requirements. Thank You

$48 Chat With Writer
Homework Master

ONLINE

Homework Master

I have read your project description carefully and you will get plagiarism free writing according to your requirements. Thank You

$17 Chat With Writer
Quality Homework Helper

ONLINE

Quality Homework Helper

I reckon that I can perfectly carry this project for you! I am a research writer and have been writing academic papers, business reports, plans, literature review, reports and others for the past 1 decade.

$32 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Write an essay about how to make and improve dog care reminder app - Irony in a modest proposal - What does unmitigated temerity mean - Titration of vinegar lab answers - It business requirements document - Gopro innovation case study - Dr axe cottage cheese - Early childhood education child observation sample - Tip passes city of joondalup - Partnership for aflatoxin control in africa - Skyward brandon sanderson pdf download - Blue nile case study analysis - Financial managerial accounting 14th edition answers - DQ w1 650 - Vce theatre studies playlist 2021 - Abbreviated electron configuration iridium - Oxidative cleavage of alkynes - Some lessons from the assembly line audience - Contribution margin per unit formula - Need 500+ words with no plagiarism in APA 7 Format - Organizational behaviour topics for presentation - How to make a dichotomous key - Change management discussion questions - Appearance v reality macbeth - Security Strategies - Boral plasterboard installation manual - Edexcel a level maths proof by contradiction - Balance exercises for seniors mayo clinic - Digi one ia default ip address - What does the suffix cyte mean in medical terms - ISI Article Summary 6 - How the market works assignment answers - Coulomb's law worksheet 15.2 answer key - Crime self-reporting cjt101 - 250 mcg to mg - Juniper mx960 hardware guide - Chem Lab, Introduction to molecules - Torsion test lab report - Crawly cruncher surface spray where to buy - Make up the suspended loads of most rivers and streams - Rs485 wiring color code - Pololu rc switch with small low side mosfet - Jamie mcintyre net worth - Fair test of ethical business communication - First 25 perfect squares - Deborah brandt sponsors of literacy - Reply 1 Infor - Me talk pretty one day quotes analysis - Tone semitone pattern minor scale - El bulli the taste of innovation case study - Political lens definition - Why might a labor supply curve be backward bending - Rip van winkle study guide answers - NON PROFIT SECTOR IN CANADA - Hsc french continuers oral exam - Artificial neural network ppt - When i first met your ma - R language - Branch ergonomic chair australia - Hi tech healthcare athens ga - Criminal justice/affidavit/complaint offense#3 - When mr pirzada came to dine text analysis - Dawes hacksaw - Study Questions and Essays - Discussion - Ocr chemistry pag 5.3 answers - ASSIGNMENT 1 For Economics - Sale of common stock to investors account classification - Security architecture - Fema emergency management institute answer key - Unit IV Case Study - Philosophy unit 5 Discussion - Case study - Traditional chinese warrior clothing - Sap hybris administration guide - Use most common analysis and design techniques with comfort. - Peyton approved final project - How to write a portfolio assignment - Julianna kunstler art 2 - What is a nursing diagnosis - Discussion: Information Sharing in Government Agencies - Is mf01 183 1392 - Main points for informative speech - YouTube downloader - In achebe's things fall apart the oracle _____ - Final Exam quiz - North tees x ray department - Multicultural guidelines - Qld boat licence rules - Describe Kubler-Ross’s stage theory of the adjusting process - Youtube budweiser lost dog commercial - Net Present Value - AB=+1 - Earth day powerpoint template - Program Reflection 2 - Accounting & finance - Respond to David post listed below: - Millbrook unit kingsmill hospital - Why does zeus decline to save hector - EDU