Page 376 - Basic College Mathematics with Early Integers

Ratio, Proportion, and

Measurement 5

5.1 Ratios
5.2 Proportions
5.3 Proportions and Problem Solving
Integrated Review—Ratio and
Proportion
3-D glasses, used to view early Polarized glasses are the standard for
3-D films. theatrical releases and theme park 5.4 Length: U.S. and Metric Systems
attractions. of Measurement
5.5 Weight and Mass: U.S. and Metric
Note: 3-D viewing systems that do not require viewing glasses are currently being Systems of Measurement
tested and manufactured.
5.6 Capacity: U.S. and Metric Systems
Having studied fractions in Chapter 3, we are ready to explore the useful notations of ratio and proportion. Ratio is of Measurement
another name for quotient and is usually written in fraction form. A proportion is an equation with 2 equal ratios. 5.7 Conversions Between the U.S. and
Metric Systems

3-D (three-dimensional) film is a film that enhances the illusion of depth per-
ception. Believe it or not, 3-D films have existed in some form since 1890, but
Abecause of high cost and lack of a standardized format, these films are only
now starting to be widely shown and produced.Although there was a decline in the Vocabulary Check
total number of films released in 2009, there were 20 films released with digital 3-D
Chapter Highlights
versions.
In Section 5.1, Exercise 25, we calculate the ratio of 3-D to non–3-D films. Chapter Review
Chapter Test
Cumulative Review
Films Released by
U.S. Production Companies
900
2-D films
800
3-D films 625
700
Number of Films 500 501 538
603
586
600
400
300
200
100
6 8 6 8 20
0
2005 2006 2007 2008 2009
Year
Source: Motion Picture Association of America

353