Question

A bag has 12 brown marbles and 6 red marbles. Half of the red marbles are made of plastic. A marble is selected at random from the bag. What is the probability that it is a red, plastic marble?

Write your answer as a fraction in simplest form.

Answer 1

HELPPPPP

Answer 2

Ha! Statistics,I'm pretty new to this sbuject :D @Feliixxia96 Which grade? :)

Answer 3

8th

Answer 4

I'll tag people who are great at this: @amistre64 @ganeshie8 @hartnn when they get online,you'll get help :)

Answer 5

there are 6 red marbles

Answer 6

half are made of plastic
so there are 3 plastic red marbles

Answer 7

ok

Answer 8

Oh yeah @satellite73 i forgot to tag him,He's a genius :p

Answer 9

there are \(12+6=18\) marbles all together

Answer 10

ok

Answer 11

the probability you get a red plastic marble is the ratio of the number of red plastic marbles, to the total number of marbles

Answer 12

i.e. it is \(\frac{3}{18}=\frac{1}{6}\)

Answer 13

so we would solve it?

Answer 14

or is that the answer?

Answer 15

yes, that is the answer

Answer 16

ok, thank you :)

Answer 17

it says its wrong

Answer 18

??

Answer 19

i am sticking with \(\frac{1}{6}\)

Answer 20

where did you get the 1 from?

Answer 21

3 red plastic marbles
18 marbles total
ratio is \(\frac{3}{18}=\frac{1}{6}\)

Answer 22

There are 12 normal marbles 3 plastic marbles and 3 other red marbles.

So in total there is 18 marbles. Satellite is accurate. You can only have 3 plastic marbles. that is 3/18 = 1/6

Answer 23

okay i get you

Answer 24

thank you