1. Warm up 8/21
solve for x:
1. 8(x-5) = 72
= 3(x-3)
3. 5-4c=c+20

2. Agenda: Warmup Go over hw p. 70 Note 2.1 & 2.2 notes
Be seated before the bell rings
DESK
Warm-up (in your notes)
Agenda:
Warmup
Go over hw p. 70
Note 2.1 & 2.2 notes
homework
Quiz – Tuesday 8/12

3. Don’t forget test retakes

4. Notebook 6) 2.1 Linear Equations/ 2.2 Proportions Table of content
Page
1) 1-1 Sets of Numbers /1.2 Properties of Numbers 1
2) 1-3 Square Roots
3) 1-4 Simplify Algebra Expression
4) 1.6 Relations/1.7 functions
5) 1.9 Parent Functions
6) 2.1 Linear Equations/
2.2 Proportions

5. 2.1: I can solve linear equations using a variety of methods
2.1 Linear Equations/ 2.2 Proportions
Learning targets
2.1: I can solve linear equations using a variety of methods
2.1: I can solve and graph linear inequalities in one variable
2.2: I can solve proportions
2.2: I can solve percentage and unit rate problems using a proportion

6. Give one, get one Time to look through the textbook
-Take three stick notes and answer 3 questions( one on each) . Use complete sentences
- Share it with some one around the classroom

7. p. 90 - 99 1) What are some ways to solve a linear equation?
2) What are some things I need to know about solving inequalities?
3) What are proportions? How do you solve them? What are rates?

8. When Solving equations, these are things I should do.
2.1 Linear Equations/ 2.2 Proportions
When Solving equations, these are things I should do.
Whatever I do to one side of the equation, I should to do to the other side of the equation
I should use the distributive property
Combine like-terms and put all variables on one side

9. Answer: All real numbers
There might be contradictions when solving an equation.
Answer: No solution
Answer: All real numbers

10. -2x < 8 Solving Inequalities Ex: 9x + 4 < 12x − 11
solve like a normal.
EXCEPT when you multiply or divide by a negative, you have to switch the inequality sign.
-2x < 8
Ex: 9x + 4 < 12x − 11

11. Solve Proportions 3(w+3) = 5(6) 3w+9 = 30 9x= 27(4) 9x= 108 -9 -9 9 9
Cross Product also allows use to solve proportions
3(w+3) = 5(6)
9x= 27(4)
3w+9 = 30
9x= 108
3w = 21
x = 12
= 3

12. Use Cross Product to solve Proportions
5(x+1) = 3(x+2)
5x+5 = 3x + 6
-3x x
2x = 1
= 2

13. Percent Problems x Percent = part 100 whole 35 434 = 35 35 100
At Clay High School, 434 students, or 35% of the students, play a sport. How many students does Clay High School have?
35x = 43400 35
434 = 35 35 x
100
x = 1240
Clay High School has 1240 students.

14. Percent Problems 2400 Percent = part 100 whole 11.5 x = 100 100 100
A college brochure states that 11.5% of the students attending the college are majoring in engineering. If 2400 students are attending the college, how many are majoring in engineering?
27600 = 100x
11.5 x =
100
100
2400
100
x = 276
276 are majoring in engineering.

15. Summarize:
In 20 words are less summarize the what you learned this week. You may reference your notebook.

16. Cut up your triangles
Solve the problems on the ws.
Match problems to solutions to form large hexagon

17. More Examples
Rations

18. 2.2 Proportions c = p A. B. =
88c = 1848
206.4 = 24p
c = 21
8.6 = p

19. -1 -1 -1 1 1 19

20. More Examples
Solve each proportion. y A. = B. = x y x = =
Set cross products equal.
924 = 84y
2.5x =105 y = =
2.5x
Divide both sides.
11 = y
x = 42

21. Lesson Quiz: Part I
Solve each proportion. 2.
3. The results of a recent survey showed that 61.5% of those surveyed had a pet. If 738 people had pets, how many were surveyed?
4. Gina earned $68.75 for 5 hours of tutoring. Approximately how much did she earn per minute?
g = 42
k = 8
1200
$0.23

22. Lesson Quiz: Part III
5. A 12-foot flagpole casts a 10 foot-shadow. At the same time, a nearby building casts a 48-foot shadow. How tall is the building?
57.6 ft