A basketball team played 15 games and won 80% of them. If the team expects to play 30 games in all, how many more games must it win to finish the season with a 90% winning percentage?

The team needs to win 15 more games to get 90% winning percentage.

Step-by-step explanation:

80%=4/5  divide 15 by 5 and you get 3, which is 1/5 of 15, so you must multiply it by 4 to get 80% of 15 which is 3*4=12

If you want 90%(or 9/10) of 30, you do the same thing, and you get 27.

27-12=15.

The team needs to win 15 more games to get 90% winning percentage

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