1. Algebra Problems… Algebra Problems… © 2007 Herbert I. Gross Set 2 By Herbert I. Gross and Richard A. Medeiros next

2. The following nine problems are designed to help you make sure that you have internalized the material in this presentation. We suggest that you treat these problems as if they were a test. © 2007 Herbert I. Gross After you have worked on these problems, check your answers with the answers you will be given. Then read through our solutions and commentary in the Problem/Solution PowerPoint Presentation. next

3. What number is named by 3 × 10² ? Problem #1 © 2007 Herbert I. Gross

4. next What number is named by (3 × 10)² ? Problem #2 © 2007 Herbert I. Gross

5. next What number is named by 3 + 7 × 10² ? Problem #3 © 2007 Herbert I. Gross

6. next Evaluate 5[ 2 (x – 3) + 4] – 6 when x = 7 Problem #4 © 2007 Herbert I. Gross

7. next Evaluate 5[ 2 (x – 3) + 4] ÷ 6 when x is = 7 Problem #5 © 2007 Herbert I. Gross

8. next For what value of x is it true that… 5[ 2 (x – 3) + 4] – 6 = 84 Problem #6 © 2007 Herbert I. Gross

9. next For what value of x is it true that… 5[ 2 (x – 3) + 4] ÷ 6 = 84 Problem #7 © 2007 Herbert I. Gross

10. next Rewrite the following recipe, using the Order of Operations (PEMDAS) Step 1: ……… Input x Step 2: …….. Add 4 Step 3: …….. Multiply by 2 Step 4: …….. Add 3 Step 5: …….. Multiply by 5 Step 6: …….. Subtract 23 Step 7: …….. Divide by 2 Step 8: …….. The output is y Problem #8 © 2007 Herbert I. Gross

11. next For what value of x is it true that… {5[ 2 (x +4) +3] – 23} ÷ 2 = 51 Problem #9 © 2007 Herbert I. Gross