1. Lesson 38.notebook December 11, 2012
Assignment:
1>Set 39 (odds) Due Tomorrow (12/12)
2>Test #5 signed??
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2. Lesson 38.notebook December 11, 2012
Lesson 38 WarmUp:
1) Solve: 6/10 = x/15
2) Collect like terms:
x2 + x + 1 + 3x + x 2 + 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)
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3. Lesson 38.notebook December 11, 2012
Lesson 38
*FYI...To solve equations we must
"ISOLATE THE VARIABLE"
*Also, Remember...
Inverse Operations > Add Subtract
Multiply Divide
AND....we "undo" the add/subract BEFORE "undoing" the multiply/divide!!
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4. Lesson 38.notebook December 11, 2012
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
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5. Lesson 38.notebook December 11, 2012
D) x 1.3 = 4.2
E) 1.2 = x/4
F) 3/5 x = 1/4
G) 5x = $4.50
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