Atotal of 60 children signed up for hockey. there were 3 boys for every 1 girl who signed up. how many of the children who signed up for hockey were girls?

The answer is 15.

Step-by-step explanation:  Given that there are a total of 60 students who signed up for hockey, where there were 3 boys for every 1 girl who signed up. We are to find the number of girls who signed up.

The ratio of the number of boys to the number of girls will be 3 : 1.

Let '3x' and 'x' be the number of boys and number of girls respectively who signed up.

Therefore, we have

Thus, the number of girls is 15.

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

the answer will be the last one