SOLUTION: Ana has played 20 games and has a 90% winning percentage. Without losing any more games, how many more games in a row must she win to reach exactly a 92% winning percentage?

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Question 235852: Ana has played 20 games and has a 90% winning percentage. Without losing any more games, how many more games in a row must she win to reach exactly a 92% winning percentage?
Answer by josmiceli(3013) About Me  (Show Source):
You can put this solution on YOUR website!
So far, she has won
games
Let = the number of games in a row she must win





She must win 5 games in a row
check:





OK