SOLUTION: In a series of 30 racquetball games played to date, larry has won 10 giving him a winning average of 33.3% if he continues to play what interval describes the number of games he mu

Question 986676: In a series of 30 racquetball games played to date, larry has won 10 giving him a winning average of 33.3% if he continues to play what interval describes the number of games he must now win in a row to have an overall winning average greater than 50 %
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
In a series of 30 racquetball games played to date, larry has won 10 giving him a winning average of 33.3% if he continues to play what interval describes the number of games he must now win in a row to have an overall winning average greater than 50 %
=================
He has to win W games.
(10+W)/(30+W) = 1/2
W+30 = 2(W+10) = 2W+20
W = 10
================
--> 20 out of 40 = 50%
RELATED QUESTIONS
In june a baseball team that played 60 games had won 30% of its game played. After a... (answered by ankor@dixie-net.com)

In a series of 5 games to be played between 2 equally matched teams, the first team to... (answered by stanbon,Fombitz)

A basketball team has won 10 games & lost 2. If the team wins the remaining games they... (answered by aaaaaaaa)

A baseball team has played 9 games and won 8. What's the ratio of games won to games... (answered by addingup,MathTherapy)

a football team has won 4 out of 7 games played. if there are 16 games in a season, how... (answered by xcentaur)

a tean won 3 of its first 7 games. By winning all its remaining games, it ended with 6... (answered by htmentor)

If Cynna won 80% of the games and had played 16 winning games, how many total games had... (answered by Theo)

A baseball team won 30 games and lost 10. What percent of games that the team played did... (answered by drj,JWG)

A minor league baseball team plays 154 games in a season. On a certain date a team has... (answered by vksarvepalli)