Answer:
28 non-blue marbles.
Step-by-step explanation:
Initial probability of choosing a blue marble = 4/12
Let the number of non-blue marbles to be added be x.

(cross multiply)

Answer:
2
Step-by-step explanation:
it literally doubles in size
By definition, the area of a rectangle is given by:
A = (w) * (l)
Where,
w: width
l: long
For this case, we have that the area is given by:
A = (3) * (2)
Therefore, in terms of this problem, the coefficient 3 represents one of the dimensions of the rectangle.
Answer:
The coefficient represents one of the dimensions of the rectangle.
Answer:
The scale factor is 1.2.
Step-by-step explanation:
18/15 = 1.2
30/25 = 1.2
24/20 = 1.2
Hope that helps!