There are 20 children in the class and 12 of the children are girls of the Girls 8 brought a lunch box and of the six boys did not bring a lunch box if a child from the class is choosing a random what is the probability that the child brought a lunchbox

½

Step-by-step explanation:

12 girls

So, 20-12 = 8 boys

6 didn't bring lunch box

So, 8-6 = 2 brought lunch box

2 boys and 8 girls brought lunch box.

10/20 brought lunch box

Probability = 10/20 = ½

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi