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1.3 Opener

1.3 Opener. Simplify: 5(x + 9) - 2(4 - x) Evaluate: 12 + (8 - n 3 ) 2. when n = -1 3. when n = 2 4. What two integers does lie in-between on a number line? 5. Number of billionaires in the United States?. Homework Review.

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1.3 Opener

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  1. 1.3 Opener Simplify: 5(x + 9) - 2(4 - x) Evaluate: 12 + (8 - n3) 2. when n = -1 3. when n = 2 4. What two integers does lie in-between on a number line? 5. Number of billionaires in the United States?

  2. Homework Review p. 13-16 #8-12 even,20,22,26-30 even, 36,40,46-50 even,54,58

  3. 1.3 Solve Linear Equations Addition Property of Equality If a = b then a + c = b + c Subtraction Property of Equality If a = b then a - c = b - c Multiplication Property of Equality If a = b and c ≠ 0 then a ∙ c = b ∙ c Division Property of Equality If a = b and c ≠ 0 then a ÷ c = b ÷ c

  4. 1.3 Solve Linear Equations

  5. 1.3 Solve Linear Equations During one shift, a waiter earns $30 and gets an additional 15% in tips on customers’ god bills. The waiter earns $105. What is the total of the customers’ food bills?

  6. 1.3 Solve Linear Equations During one shift, a waiter earns $30 and gets an additional 15% in tips on customers’ god bills. The waiter earns $105. What is the total of the customers’ food bills? What do we need to know the customer’s bill? Total Income 105 30 Wages 0.15 Tip Percent Food Bill x

  7. 1.2 Mathematical Model During one shift, a waiter earns $30 and gets an additional 15% in tips on customers’ god bills. The waiter earns $105. What is the total of the customers’ food bills? Total Income = Wages + Tip Percent ∙ Food Bill 105 = 30 + 0.15 ∙ x 30 = 0.15x x = $500

  8. 1.3 Classwork 1. 3 2. 4 3. -5

  9. 1.3 Solve Linear Equations It takes you 8 minutes to wash a car and it takes a friend 6 minutes to wash a car. How long does it take the two of you to wash 7 cars if you work together?

  10. 1.3 Homework p. 21-23 #12-18 even,24-30 even,36,38,42,48,66

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