By Berchie Holliday, Gilbert J. Cuevas, Beatrice Luchin, Ruth M. Casey, Linda M. Hayek, John A. Carter, Daniel Marks, Roger Day, Carol E. Mallory, Viken Hovseplan
This system scholars desire; the focal point lecturers wish! Glencoe Algebra 1 is a key software in our vertically aligned highschool arithmetic sequence built to aid all scholars in attaining a greater knowing of arithmetic and increase their arithmetic rankings on today’s high-stakes checks.
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Find a counterexample for each conditional statement. 29. If you were born in North Carolina, then you live in North Carolina. 30. If you are a professional basketball player, then you play in the United States. 31. If the product of two numbers is even, then both numbers must be even. 32. If two times a number is greater than 16, then the number must be greater than 7. 33. If 4n - 8 ≥ 52, then n > 15. 34. If x · y = 1, then x or y must equal 1. GEOMETRY For Exercises 35 and 36, use the following information.
28. 2x + 9x 29. 4b - 1 + 5b 30. 5n 2 - 7n 31. 3a 2 + a + 14a 2 32. 12(4 + 3c) 33. (3x - 5)15 ANALYZE TABLES For Exercises 34 and 35, use the table that shows the monthly cost of a company health plan. Available Insurance Plans – Monthly Charges Coverage Medical Dental Vision Employee $78 $20 $12 Family (additional charge) $50 $15 $7 34. Write and evaluate an expression to calculate the total cost of medical, dental, and vision insurance for an employee for 6 months. 35. How much would an employee expect to pay for family medical and dental coverage per year?
3 1 1 = 2(6 - 5) + 3 · _ Substitution; 3 · 2 = 6 2(3 · 2 - 5) + 3 · _ 3 3 1 = 2(1) + 3 · _ Substitution; 6 - 5 = 1 1 =2+3·_ Multiplicative Identity; 2 · 1 = 2 3 3 =2+1 Multiplicative Inverse; 3 · _ = 1 =3 Substitution; 2 + 1 = 3 1 3 2. Evaluate 8 + (15 - 3 · 5). Name the property used in each step. com Example 1 (p. 22) Example 2 (p. 23) Find the value of n in each equation. Then name the property that is used. 1. 13n = 0 1 n 3. 1 = _ 2. 17 + 0 = n 6 Evaluate each expression. Name the property used in each step.