Let the number of girls be g and the number of boys be b.
b = 3g
Class average = class score/class size = 17
17 = (class score) / 3g + g
68g = class score
Class score = girls score + boys score
Girls average = girls score/g
girls score = 18g
68g = 18g + boys score
boys score = 50g
Boys average = 50g/3g
= 16.7
All I can tell u to do is ask them cause i cant see your picture sorry
Answer:
d
Step-by-step explanation:
parallel lines NEVER touch
Answer:
x = 6
Step-by-step explanation:
the segment inside the triangle is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is
=
= 3 ( multiply both sides by 2 )
x = 6
4/14 because you multiply each number by 2