Question

Lola pulls two marbles from a bag containing four red marbles, four blue marbles, and 12 yellow marbles without replacing them.

What is the probability that she pulled out a red marble first and a yellow marble second? Express your answer in decimal form, rounded to the nearest hundredth.
a.0.09
b.0.13
c.0.25
d.0.32

Answer 1

@marihelenh

Answer 2

How many marbles total?

Answer 3

20

Answer 4

@marihelenh

Answer 5

Ok, so there are 4 reds, so the chance of drawing a red would be 4/20.

Answer 6

ok i get that

Answer 7

but i don't get the next part

Answer 8

After she takes out the first one, there are only 19 marbles left. What would be the prob of drawing a yellow marble if there are 12 of them?

Answer 9

12/19

Answer 10

Perfect, now like the last one, multiply the two.

Answer 11

12/95

Answer 12

is it b?

Answer 13

Yes, now divide to get the decimal.

Answer 14

That is correct!

Answer 15

because i got 12 and then i rounded because it was .126

Answer 16

ok thank u so much