1. Chapter 1 Test Corrections

2. # 11. 171 ÷ 32 + 4 171 ÷ 9 + 4 19 + 4 23

3. #12. Find the solution of 2(x – 5) = 30 if the replacement set is {19, 20, 21, 22} 2x – 10 = 30 2(20) – 10 = 30 40 – 10 = 30

4. # 15. Simplify 12f + 6 (3 + 4f) 12f + 6 (3 + 4f) 12f + 18 + 24f) 36f + 18

5. # 17. Which values of x and y are counterexamples to the given statement: If x – y = even number, then both x and y are even numbers. X = 19, y = 13 X = 12, y = 4 X = 15, y = 8 X = 22, y = 20

6. #26. Write a verbal expression for the algebraic expression (2 – y) * 6 Two minus y times six Two times six minus y The difference, y less than two, times six Six times y minus two

7. # 27. Write an algebraic expression for the verbal expression: three times the sum of x and y increased by five times the product of x and 3y 3x + y + 5x(3y) 3(xy) + 5(x +3y) 3(x + y) + 5(x + 3y) 3(x + y) + 5(3xy)