A class has 12 girls and 9 boys. In how
many ways can a team of 6 be chosen
from this class if it must consist of four
girls and two boys?

3 teams

Step-by-step explanation:

because if you have 12 girl and 6 boys you divide 12 by 3 and it gives you 4 and if you have 6 and divide it 3 it gives you 2 and 4 girls is the minimum in a group and 2 is the minimum for a boy

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1