Abag contains 5 blue marbles, 2 black marbles and 3 red marbles. a marble is randomly draw from the bag, what's the probability of drawing a red marble

3/10 or 0.3

Step-by-step explanation:

You have 3 red marbles and 10 marbles in total, so you put how many red marble in the numerator and your total marbles in the denominator.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

correct answer:

b.(19,-2)