A box contains 11 marbles—7 red and 4 green. Five of these marbles are removed
at random. If the probability of drawing a
green marble is now 0.5, how many red
marbles were removed from the box?
A. 1
I
B. 2
C. 3
D. 4
E. 5

i will pick c put check it over to be sure

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is