Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapters 1-6 - Cumulative Review Exercises - Page 472: 18


$\displaystyle 22\frac{1}{2}$ hours

Work Step by Step

We find out how many hours Mia studied in total by adding up her daily study hours: $\displaystyle 5\frac{1}{2}+6\frac{1}{4}+3\frac{3}{4}+7$ $=\displaystyle 5\frac{2}{4}+6\frac{1}{4}+3\frac{3}{4}+7$ $=\displaystyle 21\frac{6}{4}$ $=\displaystyle 21\frac{3}{2}$ $=\displaystyle 22\frac{1}{2}$ hours
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