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Tussy and Koenig - Basic Mathematics 6/e (Homework)

James Finch

Math - Developmental, section A, Fall 2019

Instructor: Dr. Friendly

Current Score : 18 / 22

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

Last Saved : n/a Saving...  ()

Question
Points
1 2 3 4 5 6 7
4/4 1/4 2/3 1/1 1/1 3/3 6/6
Total
18/22 (81.8%)
  • Instructions

    Offering a uniquely modern, balanced approach, Tussy and Koenig's Basic Mathematics with Early Integers, 6th edition, published by Cengage Learning, integrates the best of traditional drill and practice with the best elements of the reform movement. To many developmental math students, mathematics is like a foreign language. They have difficulty translating the words, their meanings, and how they apply to problem solving. Emphasizing the "language of mathematics," the text's fully integrated learning process is designed to expand students' reasoning abilities and teach them how to read, write, and think mathematically. It blends instructional approaches that include vocabulary, practice, and well-defined pedagogy with an emphasis on reasoning, modeling, communication, and technology skills.

    Question 1 demonstrates list grading in the final answer blank.

    Question 2 encourages the student to use a factor tree. The final answer blank uses grading which accounts for all prime factors entered as a product.

    Question 3 complements question 3 by presenting the student with a division ladder to factor. Again, the final answer blank uses grading which accounts for all prime factors entered as a product.

    Question 4 presents the student with a real world problem.

    Question 5 uses grading specifically for improper fractions.

    Question 6 shows the format used for grading mixed numbers.

    Question 7 personalizes 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. 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. 4/4 points  |  Previous Answers TGBasMathP6 1.7.010. My Notes
Question Part
Points
Submissions Used
1 2 3 4
1/1 1/1 1/1 1/1
4/100 3/100 3/100 4/100
Total
4/4
 
Fill in the blanks to find the pairs of whole numbers whose product is 28.
1 · Correct: Your answer is correct. seenKey

28

= 28
    
2 · Correct: Your answer is correct. seenKey

14

= 28
    
4 · Correct: Your answer is correct. seenKey

7

= 28

The factors of 28, in order from least to greatest, are as follows. (Enter your answers as a comma-separated list.)
1,2,4,7,14,28
Correct: Your answer is correct. webMathematica generated answer key
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2. 1/4 points  |  Previous Answers TGBasMathP6 1.7.015. My Notes
Question Part
Points
Submissions Used
1 2 3 4
0/1 0/1 0/1 1/1
1/100 1/100 1/100 2/100
Total
1/4
 
Fill in the blanks to prime factor 330 using a factor tree.
330
    
Two branches of a factor tree. One branch goes down and to the left. The other goes down and to the right.
  30   Incorrect: Your answer is incorrect. seenKey

11

    
Two branches of a factor tree. One branch goes down and to the left. The other goes down and to the right.
5      Incorrect: Your answer is incorrect. seenKey

6

    
Two branches of a factor tree. One branch goes down and to the left. The other goes down and to the right.
Incorrect: Your answer is incorrect. seenKey

2

3
The prime factorization of 330 is
2·3·5·11
Correct: Your answer is correct. webMathematica generated answer key .
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3. 2/3 points  |  Previous Answers TGBasMathP6 1.7.017. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 /1 1/1
1/100 0/100 2/100
Total
2/3
 
Fill in the blanks to prime factor 210 using a division ladder.
Correct: Your answer is correct. seenKey

2

210
3105
5
7
The prime factorization of 210 is
2·3·5·7
Correct: Your answer is correct. webMathematica generated answer key .
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4. 1/1 points  |  Previous Answers TGBasMathP6 2.3.106. My Notes
Question Part
Points
Submissions Used
1
1/1
2/100
Total
1/1
 
Use signed numbers to solve the problem.

Rashawn flew from his New York home to Hawaii for a week of vacation. He left blizzard conditions and a temperature of
3°F,
and stepped off the airplane into 88°F weather. What temperature change did he experience?
Correct: Your answer is correct. seenKey

91

°F increase
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5. 1/1 points  |  Previous Answers TGBasMathP6 3.5.024. My Notes
Question Part
Points
Submissions Used
1
1/1
1/100
Total
1/1
 
Write the mixed number as an improper fraction.
8
3
5
Correct: Your answer is correct. seenKey

43/5

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6. 3/3 points  |  Previous Answers TGBasMathP6 3.5.031. My Notes
Question Part
Points
Submissions Used
1 2 3
1/1 1/1 1/1
1/100 1/100 1/100
Total
3/3
 
Write the improper fraction as a mixed number or a whole number. Simplify the result, if possible.
13
6
Correct: Your answer is correct. seenKey

2

Correct: Your answer is correct. seenKey

1

Correct: Your answer is correct. seenKey

6

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7. 6/6 points  |  Previous Answers TGBasMathP6 8.5.RQ.001. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6
1/1 1/1 1/1 1/1 1/1 1/1
1/100 1/100 1/100 1/100 1/100 1/100
Total
6/6
 
  • 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. seenKey

    10

    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. seenKey

    2

    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. seenKey

    5.0

    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. seenKey

    0.3

    hr
    WestCliff Drive Trail 3.4 miles Correct: Your answer is correct. seenKey

    0.7

    hr
    Sabercat Creek Trail 11.2 miles Correct: Your answer is correct. seenKey

    2.2

    hr


Solution or Explanation
Suppose that you have completed a 5.3 mile trail in 2.5 hours. Substitute 5.3 for the distance d and 2.5 for the time t into the equation
d = rt.
Then, solve for the rate r. Round to the nearest tenth.
d = rt
5.3 = r(2.5)
2.1 = r
Your rate of travel is 2.1 miles per hour.
For each of the three trails, substitute the distance for d and your rate of 2.1 miles per hour for r, and then solve for the time t. Round to the nearest tenth if necessary.
Trail Name Distance Calculation Time
Matadero Creek Trail 1.5 miles
d = rt
1.5 = 2.1(t)
0.7 = t
0.7 hours
WestCliff Drive Trail 3.4 miles
d = rt
3.4 = 2.1(t)
1.6 = t
1.6 hours
Sabercat Creek Trail 11.2 miles
d = rt
11.2 = 2.1(t)
5.3 = t
5.3 hours
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