7th pre alg -l48

Lesson 48.notebook November 19, 2013

Assignment:

1-->Set 48 (evens) Due Tomorrow [11/20]

2>Test #6 Monday [11/25]


Lesson 48 Warm-Up:1) Solve: 4 x = 12 [show steps!] 32) Find the volume of an aquarium with dimensions 1 ft x 2 ft x 1.5 ft

3) Factor: 4x - 28

4) Simplify: (9 x 105)(9 x 105)

5) Simplify: 24wx2y -12xy


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


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?

AP


B) Michael is growing alfalfa on 180 acres, which is 30% of his farmland. Michael has how many acres of farmland?

AP


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?

AP

7th pre alg -l48

Education