In a group of 20 children, 50% have blue eyes and 40% have brown eyes. how many children have brown eyes? show your work !

8 have brown eyes

Step-by-step explanation:

50% of 20 is 10 children

40% of 10 is 4 so 4x2 is 8 children

blue eyes - 10 brown - 8

Step-by-step explanation:

50% = half

half of 20 = 10 = blue eyes

20 * 40%

20 * .4 = 8, thus 8 with brown eyes

Hope this helps

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq