Sept. 30, 2011 Ms. Wu says…Get to work! 1.Copy homework into planner. 2.Work on the warm up individually in pen. When done, turn into manila folder. 3.Grade HW 1.12 (key below). ________________________________________________ Pgs : 7, 10, 14, 23, 25, 26, 32, 34, 37, 40 7)b = -7 40) y = ) h = 3 14) n = 7 23) No solution 25) No solution 26) identity; all reals 32) No solution 34) m = 10 37) identity; all reals

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.

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?

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

Practice Problems

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

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.

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