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oksian1 [2.3K]
3 years ago
7

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?
Mathematics
1 answer:
Rufina [12.5K]3 years ago
3 0
\frac{(15 * 0.8) + x}{30} = 0.9
12+x=27
x=15

They have alrady won 12 games (80% of 15) and need to win 15 more. 

Check:
\frac{15+12}{30}=\frac{27}{30} = 90\%
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