7th pre alg -l31
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Lesson 31.notebook October 08, 2013
Assignment:
1>Set 31 (odds) Due Tomorrow [10/9]
Lesson 31.notebook October 08, 2013
Lesson 31 WarmUp:
1) 17 people have $200 each. How much money do they have in all?
2) What is 75% of $200?
3) Find the perimeter:
4) Find the area:
5) Name the property illustrated:62 x 0 = 0
8 in.10 in.
Lesson 31.notebook October 08, 2013
Lesson 31
*additive inverse – the opposite of a number
*algebraic term – an expression that includes a positive or negative number and may include one or more variables
*numerical coefficient – the number part of a term
*like terms – terms that have identical variable parts, including exponents
Lesson 31.notebook October 08, 2013
FYI...
*To add integers:
when the signs are the same: ADD & use the same sign
when the signs are different: SUBTRACT & use the sign of the larger number
Lesson 31.notebook October 08, 2013
Examples Lesson 31Simplify.A) (12) + (3)
B) (12) + (3)
C) (12) + (3)
D) (3) + (+12)
Lesson 31.notebook October 08, 2013
Collect like terms.E) 3x + 2xy + xy x
F) 6x2 x + 2x 1
G) 2a3 + 3b a3 4b
Lesson 31.notebook October 08, 2013
H) x + y 1 x + y + 1
I) P = L + W + L + W
J) P = s + s + s + s
Lesson 31.notebook October 08, 2013