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Saturday, November 21, 2009 04:42 EST

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Tussy and Gustafson - Prealgebra 3/e (Homework)

James Finch

Math - Developmental, Fall 2010

Instructor: Dr. Friendly

Current Score: 10/14

Due: Saturday, October 23, 2010 23:00 EDT

Question
Points
1 2 3 4 5 6 7 8 9
1 4 1 1 2 1 0/1 0/1 0/2
Total
10/14

Description

Create your course assignments by selecting questions from our bank of 1500 end-of-section exercises, as well as enhanced interactive examples with videos.

While doing their homework, students can link to the relevant interactive examples from the book and work through them again and again for additional practice before answering the question.

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, online-live help, tutorials, and videos.

Read It - relevant textbook pages

Watch It - videos of worked examples

Practice It - interactive examples

Master It - tutorials

Chat About It - online, live help

In this assignment we present several textbook question types found in Chapter 5 on decimals in Prealgebra 3/e by Alan S. Tussy and R. David Gustafson published by Brooks/Cole.

Question 1 is a Vocabulary exercise, with a links to the appropriate section of the book and an online tutor chat room.

Question 2 is a Concept numerical question with links to the appropriate section of the book and an online tutor chat room.

Question 3 and 4 are Practice exercises with links to a video explanation, a practice application, a Master It application that allows you to try several similar problems or see the solutions step by step, as well as the online book and the chat room.

Question 5 and 6 are Application word problems with a figure from the textbook and links to the book, Master It, and the chat room.

Question 7 is a Review exercise with randomization and links to the book and the chat room.

Question 8 is a Writing exercise with links to the book and the chat room.

Question 9 is an enhanced interactive Example which helps guide the student through the process needed to master the concept.


Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.



1. 1/1 points All Submissions Notes Question: TGPreAlg3 5.1.002.
Question part
Points
Submissions
1
1
1/50
Total
1/1
 
Vocabulary We can show the value represented by each digit of the decimal 98.6123 by using Your answer is correct. notation.
98.6213 = 90 + 8 + 6/10 + 2/100 + 1/(1,000) + 3/(10,000)

Need Help? Read It


2. 4/4 points All Submissions Notes Question: TGPreAlg3 5.1.010.
Question part
Points
Submissions
1 2 3 4
1 1 1 1
2/50 1/50 1/50 3/50
Total
4/4
 
Concepts Write each fraction as a decimal.
(a) 8/10
Enter an exact number.
Your answer is correct.

(b) 60/100
Enter an exact number.
Your answer is correct.

(c) 601/1000
Enter an exact number.
Your answer is correct.

(d) 96/10000
Enter an exact number.
Your answer is correct.

Need Help? Read It


3. 1/1 points All Submissions Notes Question: TGPreAlg3 5.5.042.
Question part
Points
Submissions
1
1
3/50
Total
1/1
 
Practice Write the fraction in decimal form. Round to the nearest hundredth.
34/35
Enter a number.
Your answer is correct.

Need Help? Read It Watch It Practice It Master It


4. 1/1 points All Submissions Notes Question: TGPreAlg3 5.2.048.
Question part
Points
Submissions
1
1
2/50
Total
1/1
 
Practice Evaluate the expression. Remember to perform any calculations within grouping symbols first.
-96 - (0.049 - 0.030)
Enter an exact number.
Your answer is correct.

Need Help? Read It Watch It Practice It Master It


5. 2/2 points All Submissions Notes Question: TGPreAlg3 5.1.056.
Question part
Points
Submissions
1 2
1 1
1/50 7/50
Total
2/2
 
Applications The laser used in laser vision correction is so precise that each pulse can remove 39 millionths of each inch of tissue in 12 billionths of a second. Write each of these numbers as a decimal.
Enter an exact number.
Your answer is correct. in.
Enter an exact number.
Your answer is correct. sec

Need Help? Read It Master It


6. 1/1 points All Submissions Notes Question: TGPreAlg3 5.7.075.
Question part
Points
Submissions
1
1
1/50
Total
1/1
 
Applications The picture screen on a television set is measured diagonally. What size screen is shown?
Enter a number.
Your answer is correct. inch


Need Help? Read It


7. 0/1 points All Submissions Notes Question: TGPreAlg3 5.1.078.
Question part
Points
Submissions
1
0/1
1/50
Total
0/1
 
Review Express the fraction 2/3 as an equivalent fraction with a denominator of 12.
<math><mrow><mn>8</mn></mrow></math> Your answer is incorrect.

Need Help? Read It


8. –/1 points Notes Question: TGPreAlg3 5.7.078.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
Writing Explain the difference between the square and the square root of a number.

Need Help? Read It


9. –/2 points Notes Question: TGPreAlg3 5.6.E08.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
Total
0/2
 
EXAMPLE 8 Solve: 5(x + 1.3) = -9.9.
Solution First, we remove the parentheses by applying the distributive property.
5(x + 1.3)=-9.9
5x + 6.5=-9.9Distribute the 5: 5 · 1.3 = 6.5.
5x + 6.5 - 6.5=-9.9 - 6.5To undo the addition of 6.5, subtract 6.5 from both sides.
5x=-9.9 + (-6.5)On the right-hand side, add the opposite of 6.5.
5x=-16.4Perform the addition.
5x/5=-16.4/5To undo the multiplication by 5, divide both sides by 5.
x=
Enter an exact number.
Perform the division.
Self Check Solve: 5(4.1 + c) = -19.4. (Give your answer correct to 2 decimal places.)
c =
Enter a number.

Need Help? Read It