Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter R - Section R.2 - Fractions - Exercise Set: 91

Answer

a. $\frac{21}{100}$ b. $\frac{1}{2}$ c. Multiplexes d. $\frac{1}{2}$

Work Step by Step

a. It can be read that $\frac{21}{100}$ of U.S. movie screens are in miniplexes b. $\frac{1}{25}+\frac{23}{50}=\frac{1*2}{25*2}+\frac{23}{50}=\frac{2}{50}+\frac{23}{50}=\frac{2+23}{50}=\frac{25}{50}=\frac{5*5}{2*5*5}=\frac{1}{2}*\frac{5*5}{5*5}=\frac{1}{2}*1=\frac{1}{2}$ c. It can be read from the pie chart that Multiplexes has the greatest fraction of screens. d. $\frac{21}{100}+\frac{29}{100}=\frac{21+29}{100}=\frac{50}{100}=\frac{2*5*5}{2*2*5*5}=\frac{1}{2}*\frac{2*5*5}{2*5*5}=\frac{1}{2}*1=\frac{1}{2}$
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