**Questions 12-13**

**12. In a class of 32 students, there are 24 girls.**

**a) What is the boys to total ratio? Express the ratio as a fraction and a percent.**

The boys to total ratio is:

boys/total = 8/32 = 25%

**b) What is the girls to boys ratio? Use ratio notation to express the ratio.**

The girls to boys ratio is 24:8.

**13. A soccer team played 28 games and won 4 out of every 7 games. There were no tied games.**

**a) How many games did they lose?**

The soccer team lost 12 games.

**b) What was the team's win--loss ratio? Explain how you got your answer.**

The win-loss ratio is 16:12. What I did was I knew that the total games was 28 and that they had 4 out of 7 wins. There are 4 rounds of 7 games so I multiplied 4 wins by 4 rounds to get 16 wins, then I took away 16 from 28 (total games) to get 12 which is the amount of losses.

**c) If the trend continues, how many losses would you expect the team to have once they have won 20 games?**

Once they have won 20 games they will have 15 losses. I got that because I multiplied 4 wins out of 5 rounds to get 20 games, then I took 7 games and multiplied that by 5 rounds to get 35 which is the total. After that, I took away 20 from 35 (total) to get 15 losses.

## No comments:

Post a Comment