what is the probability that robert will draw a blue marble and then a green marble if he does not replace the first marble?

Question

what is the probability that robert will  draw a blue marble and then a green marble if he does not replace the first marble?

anonymous · Answer

options are-
2/15
7/10
3/25
22/45

anonymous · Answer

how many marbles is the blue one and green one

anonymous · Answer

it doesnt say

anonymous · Answer

well yea its red 2
blue 4
green 3
and orange 1

anonymous · Answer

okay

anonymous · Answer

please help me out im on a bit of a time crunch

anonymous · Answer

okay im thinking

anonymous · Answer

thanks :)

anonymous · Answer

7/10

anonymous · Answer

thanks can i ask you a few more questions

anonymous · Answer

its 7/10 because if you add up all the colcors their is tena nd you add the ble and green marble beacuse what eer you do to one side you do to the other

anonymous · Answer

ok

anonymous · Answer

robert has these marbles in a jar. of robert draws one marble without looking. what is the probability that it will be green?


it nuses that same graph as the one above

anonymous · Answer

_uses

anonymous · Answer

2 + 4 + 3 + 1 = your denominator
3 + 4 = blue and green/ your numerator

anonymous · Answer

thanks tousii45

anonymous · Answer

Yup(:

anonymous · Answer

its for one green right

anonymous · Answer

the probability it was green is 3/10

anonymous · Answer

3/10 is your answer if you count all 3

anonymous · Answer

To draw blue$$
\frac 4{10}
$$To drag green after $$
\frac 39
$$Both probability $$
\frac 4{10}\times
\frac 39 = \frac{12}{90} = \frac{6}{45} = \frac{2}{15}
$$

anonymous · Answer

maria has a spinner numbered from 1 to 8. if she  spins it twice in a row, what is the probability thazt she will spin a 2 and then a 5?

anonymous · Answer

1/8

anonymous · Answer

2/8

anonymous · Answer

its one of them im just not sure

anonymous · Answer

options are 1/64
1/56
14
11/15

anonymous · Answer

hold on.....

anonymous · Answer

alrighty

anonymous · Answer

i would say 1/64 i learning this now

anonymous · Answer

multiply 1/8 times 1/8 and you get 1 ad 64

anonymous · Answer

thanks your the best i just have 2 more questions if you dont mind?

anonymous · Answer

ok

anonymous · Answer

in problem 4 , wich best describes the two spins of the spinner?

dependent events
independent events
predictable events
replacable events

anonymous · Answer

r u good at ratios ??

anonymous · Answer

not at all

anonymous · Answer

i would say it is dependent or replaceable. yeah its dependent

anonymous · Answer

thanks everybody youv been very helpful

anonymous · Answer

welcome