Algebra: A Combined Approach (4th Edition)

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

Chapter 2 - Group Activity - Investigating Averages - Page 174: 7

Answer

2 more wins are needed

Work Step by Step

The rugby team in question 6 won 15 games last year and had a winning percentage of .833. For the team to have a winning percentage 110% better than last year, the team must have a winning percentage of $.833 *1.10$, or $.9163$. $.9163*18 = 16.49$ wins are the goal. However, we cannot have $.49$ of a win, so we have to round to the next integer (17). $17 - 15 = 2$ The team needs 2 more wins to meet their goal of having a winning percentage 110% better than last year.
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