1. Lesson 71.notebook
February 27, 2014
Assignment:
1-->Test #10 Review Handout - Due Tomorrow [2/28]
2-->Test #10 - Tomorrow [2/28]

2. Lesson 71.notebook
February 27, 2014
Lesson 71 Warm Up:
1) The soccer team had 30% more players this year than last year. If there are
1170 players this year, how many players were there last year?
2) Laura recognized 32% of the songs. If she heard 25 songs in all, how many did
she not recognize?
5x2 + 10x + 15
3)
Factor:
4)
Simplify:
8x3yz2
4xyz2
5)
Simplify:
(-2/3)2
(2/3)-1

3. Lesson 71.notebook
February 27, 2014
Lesson 71:
fyi...
*For a dilation - percent of original = 100% + percent of increase
*For a reduction - percent of original = 100% - percent of decrease

4. Lesson 71.notebook
Lesson 71 Examples:
pg. 480
Ex 1)
February 27, 2014

5. Lesson 71.notebook
February 27, 2014
FYI...
*For squares that are 50% greater than the original square...
Scale Factor =
Perimeter =
Area =
*SO....For squares that are 20% greater...
Scale Factor =
Perimeter =
Area =

6. Lesson 71.notebook
pg. 481
Ex 2)
February 27, 2014

7. Lesson 71.notebook
pg. 481
Ex 3)
February 27, 2014
Y
x

8. Lesson 71.notebook
*If you are looking for the "percent of the original"....that
DOES include the 100% (original)
*If you are looking for the "percent of the
increase/decrease"...that DOES NOT include the 100%
(original)
February 27, 2014

9. Lesson 71.notebook
pg. 482
Ex 4)
February 27, 2014