Unit 2: Chapters 4, 5, & 6
GED 150 Mathematics Study Guide
Text Book : Basic College Mathematics
13th Edition, 2019 ISBN: 9780134689623
Marvin L. Bittinger, Judith A. Beecher, and Barbara L. Johnson
Pearson Education, Inc.
Answer ONE of the following:
1. A student wanted to estimate 21.5 × 0.0079 by first rounding each number. He solved the problem as follows:
21.5 × 0.0079 is approximately equal to 20 × 0.008, which is equal to 0.016. So he estimated the answer as 0.016.
Do you agree with the answer? If not, explain where the student went wrong and give the correct answer.
2. In triangle A, the longest side is twice as long as the shortest side. In triangle B, the longest side is also twice as long as the shortest side. If this is the only information you have about the two triangles, can you conclude that they must be similar? Explain your answer.
3. The price of an item is reduced by 20% in a sale. Two weeks later the price is increased to 20% more than the sale price. Do you think that the item has been restored to its original price? If not, do you think its price is now higher or lower than the original price? Explain your thinking.
-Use a standard essay response to all questions (i.e. four to five paragraphs with three to five sentences per paragraph, including an introduction, middle paragraphs, and conclusion). All responses must be typed double-spaced, using a standard font and 12 point type size for ease of reading and grading.
• Begin each writing assignment by identifying the question number you are answering followed by the actual question itself (in bold type).
• Use a standard essay format for responses to all questions (i.e., an introduction, middle paragraphs, and conclusion).
• Responses must be typed double-spaced, using a standard font (i.e. Times New Roman) and 12 point type size.
Students who are successful in earning the maximum number of points tend to submit writing assignments that fall in the following ranges:
Undergraduate courses: 350 – 500 words per question.
All work must be free of any form of plagiarism. Put written answers into your own words. Do not simply cut and paste your answers from the Internet and do not copy your answers from the textbook. Be sure to refer to the course syllabus for more details on plagiarism and proper citation styles.
The majority of your response should be your own original writing based on what you have learned from the textbook. However, students may also use outside materials if applicable. Be sure to provide a citation and a reference for any materials used, including the required textbook. The following points are designed to help you understand how to provide proper citations and references for your work:
Sources are listed in two places.
The first, a citation, is briefly listed within your answer. This includes identifying information that directs the reader to your list of references at the end of your writing assignment.
The second, a reference, is at the end of your work in the list of references section.
All sources cited should follow APA style and provide enough identifying information so that the reader can access the original material.
