Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 7 - Similarity - 7-1 Ratios and Proportions - Practice and Problem-Solving Exercises - Page 436: 13

Answer

won 110, lost 44

Work Step by Step

Set x equal to the number of games won. Then, 154-x would equal the number of games lost. Now, set up the proportion and solve for x. $\frac{games won}{games lost}$ = $\frac{5}{2}$ $\frac{x}{154-x}$ = $\frac{5}{2}$ = Cross multiply. 2x = 5(154-x) 2x=770-5x 7x=770 x=110 You have found the games won, so now subtract from the total games to get games lost. 154-110=44
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