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HW: Textbook (show all work) Read p. 164 -167 Do: Problems p. 168-169: 8,9, 12, 15, 18, 19, 21, 23, 30, 32, 35, 39, 43. Objective: SWBAT… Create equations and inequalities in one variable and use them to solve problems. Bell Ringer: Create and equation and solve.
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HW: Textbook (show all work) Read p. 164 -167 Do: Problems p. 168-169: 8,9, 12, 15, 18, 19, 21, 23, 30, 32, 35, 39, 43 Objective: SWBAT…Create equations and inequalities in one variable and use them to solve problems Bell Ringer: Create and equation and solve. 1. Tierra went to the store with a $20 bill. She bought a loaf of bread and a gallon of milk. The clerk gave her $15.17 in change. How much money did Tierra spend on bread and milk? • 5 minutes • 4 minutes • 3 minutes • 2 minutes • 1 minute • 30 seconds • TIMES UP!!!
HW: Textbook (show all work) Read p. 164 -167 Do: Problems p. 168-169: 8,9, 12, 15, 18, 19, 21, 23, 30, 32, 35, 39, 43 Objective: SWBAT…Create equations and inequalities in one variable and use them to solve problems An Inequality two expressions that are not equal to each other. Example: Alex wants to put together a volleyball team to compete in a tournament. She must have at least six people sign up for her team. How many people could be on her team? x> 6 Put 6 on a number line. Can x be 6?;Can x be 7? Can x be 3? -5 0 6 If x can be a number stated, add that point to the number line. What do we notice about our points? (they make a line).
HW: Textbook (show all work) Read p. 164 -167 Do: Problems p. 168-169: 8,9, 12, 15, 18, 19, 21, 23, 30, 32, 35, 39, 43 Objective: SWBAT…Create equations and inequalities in one variable and use them to solve problems Ex. The highest temperature recorded in the United States was 134⁰F at Death Valley, CA. Use only this fact to write and graph an inequality that describes temperatures in the United States _______ Some Questions to ask yourself: What KEY information is the verbal problem telling you? Based on this information, what can you assume about other temperatures in other locations of the United States? Hint: What are your unknowns? How do you label them?
HW: Textbook (show all work) Read p. 164 -167 Do: Problems p. 168-169: 8,9, 12, 15, 18, 19, 21, 23, 30, 32, 35, 39, 43 Objective: SWBAT…Create equations and inequalities in one variable and use them to solve problems < > Symbols The closed point or vertex of this symbol tells you which side if the inequality is smaller < > The open point or vertex of this symbol tells you which side if the inequality is larger
- - 5 5 0 0 5 5 HW: Textbook (show all work) Read p. 164 -167 Do: Problems p. 168-169: 8,9, 12, 15, 18, 19, 21, 23, 30, 32, 35, 39, 43 Objective: SWBAT…Create equations and inequalities in one variable and use them to solve problems Open circle < and >” On the number line… Closed circle for < and > • SOLVE for x an graph solution • x - 9 = 3 • x - 9 > 3 • x - 5 > -3.5
HW: Textbook (show all work) Read p. 164 -167 Do: Problems p. 168-169: 8,9, 12, 15, 18, 19, 21, 23, 30, 32, 35, 39, 43 Objective: SWBAT…Create equations and inequalities in one variable and use them to solve problems Examples: 1. The lowest temperature recorded in Antartica was -129⁰F. Use only this fact to write and graph an inequality that describes the temperature in Antartica.2. Solve and graph the following inequalities on whiteboards. i. p – 9.2 < -5 ii. 9 > x + 7 iii. x + 4 < 5 iv. -8 < 8 + yc