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Sept. 30, 2011 Ms. Wu says…Get to work! 

Copy homework into planner. Work on the warm up individually in pen . When done, turn into manila folder. Grade HW 1.12 (key below). ________________________________________________ Pgs 157 - 158:  7, 10, 14, 23, 25, 26, 32, 34, 37, 40 b = -7 40) y = -24

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Sept. 30, 2011 Ms. Wu says…Get to work! 

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  1. Copy homework into planner. • Work on the warm up individually in pen. When done, turn into manila folder. • Grade HW 1.12 (key below). • ________________________________________________ • Pgs 157 - 158:  7, 10, 14, 23, 25, 26, 32, 34, 37, 40 • b = -7 40) y = -24 • h = 3 • 14) n = 7 • No solution • 25) No solution • 26) identity; all reals • No solution • 34) m = 10 • 37) identity; all reals Sept. 30, 2011Ms. Wu says…Get to work! 

  2. Main Points from Last Lesson • When you have variables on both sides, … • move all of the variables to one side of the equation. • As soon as both sides are identical, … • you can stop solving and conclude that the solution is _________________. • If you reach a point where the equation is impossible (i.e. 25 = 30), the solution set is ____________________. • To get rid of fractions in equations…. • Multiply both sides (every term!) by the least common denominator.

  3. Ms. Wu and Ms. Lassiter decided to play a nasty trick on their students. They placed a certain amount of barf-flavored jelly beans into a bag of regular jelly beans and offered them to their students as treats. Ms. Wu had 35 jelly beans, and 21 of them were barf-flavored. Ms. Lassiter’s class was smaller with only 20 students, but she wanted to fill her bag with a proportional amount of barf-flavored (and possibly also inducing) jelly beans—in the name of fairness, of course. How many beans would Ms. Lassiter need to add?

  4. Krissy ate 25% of the jelly beans in the jar. If she ate 23 jelly beans, how many were originally in the jar?

  5. Practice Problems

  6. Unit 1.2 Common Mistakes • Not solving equations using the properties of equality (“golden rule”) and showing inverse operations line-by-line on both sides • Ignoring operation signs when combining like terms. • Change all subtraction to… • Forgetting to draw the coordinate axes • Solving equations by guess and check instead of algebraically • Proper formatting for expressions

  7. Quiz Corrections • Due on the day of the test (10/6 or 10/7) • All missed problems must be completely corrected on a separate sheet of paper and attached to the original quiz. • Check answers with peers, knowledgeable adults, or me. • Can get up to a 20 out of 24.

  8. Homework • HW 1.12: Solving Equations with Fractions and Variables on Both Sides • Pgs 157 -158: 7, 10, 14, 23, 25, 26, 32, 34, 37, 40

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