1. Lesson 38.notebook
Assignment:
1­­>Set 38 (evens) ­ Due Tomorrow (10/30)
2­­>Test signed?
3­­>Test #5 ­ Tuesday (11/5)
October 29, 2013

2. Lesson 38.notebook
October 29, 2013
Lesson 38 Warm­Up:
6 = x
1) Solve:
10 15
2)
Collect like terms:
x2 + x + 1 + 3x + x2 + 2
3) At the zoo, the ratio of spotted cats to striped cats was 2 to 5. If there were 12
spotted cats, how many striped cats were there?
4)
The number ­1/2 is a member of which sets of numbers? [list all!]
5)
Simplify: 10 + 10(102 ­ 10 32)

3. Lesson 38.notebook
October 29, 2013
Lesson 38
*FYI...To solve equations ­ we must
"ISOLATE THE VARIABLE"
*Also, Remember...
Inverse Operations ­>
Add ­ Subtract
Multiply ­ Divide
AND....we "undo" the adding/subracting BEFORE "undoing" the multiplying/dividing!!

4. Lesson 38.notebook
Examples ­ Lesson 38
A) Which operation is the inverse of subtraction?
B) Which operation is the inverse of multiplication?
Solve each equation. Show all steps!
C) x + 1/2 = 3/4
October 29, 2013

5. Lesson 38.notebook
D) x ­ 1.3 = 4.2
E) 1.2 = x/4
F) 3/5 x = 1/4
G) 5x = $4.50
October 29, 2013