Errata – Foundations of Math, 7th Edition
Cover for 7th Edition
Release Date:
January 7, 2020
7.0
| Page | Loc | Description | Erroneous Text | Correction |
|---|---|---|---|---|
| 75 |
Chapter 2 Chapter Review: Drill Sets Solutions |
In the solution for question 7, the first line mistakenly restates the question. The number 50 should be 60. The rest of the explanation is correct. | that are less than 50 | that are less than 60 |
| 117 |
Chapter 3 Chapter Review: Drill Sets Solutions |
The solution for question 26 is correct as written, but it (confusingly!) changes the second term from 9^3 to 27^2. It’s not necessary to change this term to 27^2; it can be simplified from 9^3, as shown to the right. (Note: In the book, the math from row 3 to the end is identical via either solution path.) |
812 – 93
(34)2 – (32)3 |
|
| 163 |
Chapter 4 Chapter Review: Drill Sets |
In problem 15, the question should match what is shown in the solution. The plus sign should be a minus sign and the minus sign should be a plus sign. | x2z⁄yz + x2z⁄xy − 3xz⁄y | x2z⁄yz − x2z⁄xy + 3xz⁄y |
| 190 |
Chapter 5 20% of $55 = 0.2 × $55 |
In the solution for equation y⁄100 × 25 = 100, y⁄4 equals 5, not 25. | y⁄4 = 25 | y⁄4 = 5 |
| 223 |
Chapter 5 Chapter Review: Drill Sets Solutions |
In the solution for question 45, all instances of 3.5 should be 3. The product of 2 and 1.5 is 3, not 3.5 | 3.5 oranges | 3 oranges |