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Warm-Up

4 minutes. Warm-Up. Solve. 1) 9u + 1 < 19. 2). 3). 4). 4.5 Using Inequalities. Objectives: To translate phrases to mathematical inequalities To solve problems by translating and solving inequalities . b) A number x is greater than. Example 1. Translate to an inequality.

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Warm-Up

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  1. 4 minutes Warm-Up Solve. 1) 9u + 1 < 19 2) 3) 4)

  2. 4.5 Using Inequalities Objectives: To translate phrases to mathematical inequalities To solve problems by translating and solving inequalities

  3. b) A number x is greater than . Example 1 Translate to an inequality. a) A number y is less than 4. c) 8 less than 3 times a number is more than 13.

  4. Practice Translate to an inequality. 1) A number x is greater than or equal to 8. 2) A number t is less than 12. 3) A number x is at most . 4) 3 less than a number is greater than 4.

  5. Example 2 Kayla needs at least 500 milligrams of vitamin C each day. She gets her vitamin C by drinking OJ. Each glass of OJ yields 10 milligrams of vitamin C. Find the number of glasses of OJ she must drink each day. Let g be the # of glasses she must drink each day 10 10 She must drink at least 50 glasses of OJ each day.

  6. Example 3 Your test grades are 85,74, and 91. What is the lowest grade you can get on the next test and have an average of at least 80? Let f be your next test score you must score at least 70

  7. Homework study guide

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