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Aufmann et al - Prealgebra & Intro Algebra 3/e (Homework)

James Finch

Math - Developmental, section A, Fall 2019

Instructor: Dr. Friendly

Current Score : 22 / 26

Due : Monday, December 30, 2030 23:59 EST

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5 6 7 8 9 10
1/1 5/5 5/5 1/1 1/1 1/1 3/3 –/2 –/1 5/6
Total
22/26 (84.6%)

  • Instructions

    Create your course assignments by selecting questions from our bank of end-of-section exercises, as well as enhanced interactive examples with videos.

    Students can view and hear additional instruction through the 2-5 minute Watch It links. Students will also find helpful links to online excerpts from their textbook, tutorials, and videos.

    Every problem includes a link to the appropriate section of a complete interactive eBook, (also available through a dynamic table of contents from the student's WebAssign homepage), allowing students to highlight and take notes as they read.

    Watch It - videos of worked examples

    Master It - tutorials

    This book also includes a Personal Study Plan (PSP). Once PSP is enabled for your course, your students can use chapter and section assessments to gauge their mastery of the material and generate individualized study plans that include various online, interactive multimedia resources.

    In this assignment we present several textbook question types found in Prealgebra & Introductory Algebra: An Applied Approach 3/e by Richard Aufmann and Joanne S. Lockwood published by Brooks/Cole. This textbook also includes Expanded Problem (EP) questions, which are expanded versions of existing questions that include intermediary steps to guide the student to the final answer. Also included are Responsive Questions (RQ), which personalize the learning experience for your students by asking them to use their own real data, which provides the variables they will use to answer each question part.

    Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. 1/1 points  |  Previous Answers AufPIAlg3 5.1.008. My Notes
Question Part
Points
Submissions Used
1
1/1
1/50
Total
1/1
 
Is 3 a solution of the following?
y + 3 = 6
     Correct: Your answer is correct.
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2. 5/5 points  |  Previous Answers AufPIAlg3 5.1.008.EP. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5
1/1 1/1 1/1 1/1 1/1
1/50 1/50 1/50 1/50 1/50
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5/5
 
Consider the following equation.
y + 2 = 4
Substitute 2 for y in the equation.
Correct: Your answer is correct. + 2 = 4

Without rewriting the equation, complete the following statement.
When
y = 2,
 the value of the left side of the equation is Correct: Your answer is correct. . When
y = 2,
 the value of the right side of the equation is Correct: Your answer is correct. . These values are Correct: Your answer is correct. .

Is 2 a solution of the equation?
     Correct: Your answer is correct.
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3. 5/5 points  |  Previous Answers AufPIAlg3 5.1.026.SBS. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5
1/1 1/1 1/1 1/1 1/1
1/50 1/50 1/50 1/50 3/50
Total
5/5
 
Solve and check.
y + 6 = 10
STEP 1:  Write down the equation.
y + 6 = 10


STEP 2:  Isolate the y term in the equation by subtracting 6 from both sides of the equation.
y + 6 − Correct: Your answer is correct.  = 10 − Correct: Your answer is correct.
y =  Correct: Your answer is correct.


STEP 3:  Check your answer by substituting it into the original equation.
y + 6 = 10
Correct: Your answer is correct. + 6 = 10
Correct: Your answer is correct.  = 10
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4. 1/1 points  |  Previous Answers AufPIAlg3 5.1.104. My Notes
Question Part
Points
Submissions Used
1
1/1
1/50
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1/1
 
The Ride for Health Bicycle Club has chosen a 70-mile course for this Saturday's ride. If the riders plan on averaging 14 mph while they are riding, and they have a 1-hour lunch break planned, how long will it take them to complete the trip?
Correct: Your answer is correct. hr
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5. 1/1 points  |  Previous Answers AufPIAlg3 5.2.091.MI. My Notes
Question Part
Points
Submissions Used
1
1/1
1/50
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1/1
 
Black ice is an ice covering on roads that is especially difficult to see and therefore extremely dangerous for motorists. The distance that a car traveling at 30 mph will slide after its brakes are applied is related to the outside temperature by the formula
C = 
1
4
D − 45,
 where C is the Celsius temperature and D is the distance in feet that the car will slide.

Determine the distance a car will slide on black ice when the outside temperature is
−2°C.

Correct: Your answer is correct. ft

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6. 1/1 points  |  Previous Answers AufPIAlg3 5.3.044. My Notes
Question Part
Points
Submissions Used
1
1/1
3/50
Total
1/1
 
Solve and check.
5(6 − 2y) + 4y = 6
y = Correct: Your answer is correct.
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7. 3/3 points  |  Previous Answers AufPIAlg3 5.4.022. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 1/1 1/1
4/50 2/50 2/50
Total
3/3
 
Translate into an equation and solve. (Use n to represent the smaller number.)
The sum of two numbers is twenty-four. Six less than five times the smaller is equal to the larger.
24=6n−6
Correct: Your answer is correct.

Find the numbers.
Correct: Your answer is correct. (smaller number)
Correct: Your answer is correct. (larger number)
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8. –/2 points AufPIAlg3 5.5.016. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
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–/2
 
A lumber company combined oak wood chips that cost $3.50 per pound with pine wood chips that costs $2.20 per pound. How many pounds of each were used to make a 50-pound mixture costing $2.46 per pound?
oak chips    lb
pine chips    lb
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9. –/1 points AufPIAlg3 5.5.053.MI. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
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–/1
 
A bicyclist rides for 3 h at a speed of 12 mph and then returns at a speed of 18 mph. Find the cyclist's average speed for the trip. (Enter your answer as a fraction. Reduce all fractions completely.)
mph

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10. 5/6 points  |  Previous Answers AufPIAlg3 5.1.RQ.001. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6
1/1 1/1 1/1 1/1 0/1 1/1
1/50 1/50 1/50 1/50 1/50 1/50
Total
5/6
 

  • Part 1

    How can I predict how long it will take me to travel a nature trail?
    Use some information about a path or trail that you have previously traveled to predict your rate of travel. Recall that distance traveled is equal to the product of the rate of travel and the time:
    d = rt.
    The values you enter in this part will be used to make later calculations.
    Consider a path or trail that you have traveled before.
    How long is this path in miles?
    Correct: Your answer is correct. Your value is acceptable. mi
    How long, in hours, does it take you to travel this path from beginning to end?
    Correct: Your answer is correct. Your value is acceptable. hr

  • Part 2

    Use the values you entered in part 1 to determine the answer in this part.
    Use the equation
    d = rt
     to determine your rate of travel, in miles per hour, on this path. (Round your answer to the nearest tenth.)
    Correct: Your answer is correct. mph

  • Part 3

    Continue investigating this situation.
    Use the rate you found in part 2 and the equation
    d = rt
     to determine how long it would take you, in hours, to travel each of the trails below. (Round your answers to the nearest tenth.)
    Trail Name Distance Time (in hours)
    Matadero Creek Trail 1.5 miles Correct: Your answer is correct. hr
    WestCliff Drive Trail 3.4 miles Incorrect: Your answer is incorrect. hr
    Sabercat Creek Trail 11.2 miles Correct: Your answer is correct. hr
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