The document contains notes from a math lesson on December 2nd, 2013. It includes a warm-up assignment with 5 math problems, notes on using ratio boxes to solve percent problems, and 4 example percent problems solved using ratio boxes. The examples find the percent read in a book, acres of farmland based on a percentage, occurrences of the letter "e" at a given frequency percentage, and number of games won by a team based on win percentage and losses.

1. Lesson 48.notebook
December 02, 2013
Assignment:
1-->Set 48 (evens) - Due Tomorrow [12/3]

2. Lesson 48.notebook
December 02, 2013
Lesson 48 Warm-Up:
[show steps!]
4 x = 12
3
2) Find the volume of an aquarium with dimensions
1 ft x 2 ft x 1.5 ft
1)
Solve:
3)
Factor:
4)
Simplify: (9 x 105)(9 x 105)
5)
Simplify:
4x - 28
24wx2y
-12xy

3. Lesson 48.notebook
December 02, 2013
Lesson 48:
FYI...Percents are commonly used to describe part of a
whole. We can use ratio boxes to help us work with percents
as well!
P
A

4. Lesson 48.notebook
December 02, 2013
Examples (Lesson 48):
Solve each of these problems using a proportion/ratio box.
A)
Mariah has read 135 of the 180 pages in the book.
What percent of the book has she read?
P
A

5. Lesson 48.notebook
December 02, 2013
B) Michael is growing alfalfa on 180 acres, which is 30% of his
farmland. Michael has how many acres of farmland?
P
A

6. Lesson 48.notebook
December 02, 2013
C) The frequency of the letter "e" in written English is
about 13%. On a page of a novel that has about 2000 letters
per page, about how many occurrences of the letter "e" can
we expect to find?
P
A

7. Lesson 48.notebook
December 02, 2013
D) The Springfield Sluggers won 64% of their games and lost
9 games. How many games did the Sluggers win?
P
A