Please help!
Caley has a bag that contains 9 blue marbles and 13 yellow marbles. She selects a marble at random, and then, without replacing the first one, selects another marble at random.

What is the probability that Caley selects a blue marble and then a yellow marble? Round your answer to the nearest percent.

P(blue and yellow) ≈ ______%

Question

Please help!
Caley has a bag that contains 9 blue marbles and 13 yellow marbles. She selects a marble at random, and then, without replacing the first one, selects another marble at random.
 
What is the probability that Caley selects a blue marble and then a yellow marble? Round your answer to the nearest percent.
 
P(blue and yellow) ≈ ______%

jim_thompson5910 · Answer

what is the probability of picking a blue marble?

anonymous · Answer

Idk lol

jim_thompson5910 · Answer

how many blue marbles are there?
how many marbles are there total?

anonymous · Answer

What is the probability that Caley selects a blue marble and then a yellow marble?

jim_thompson5910 · Answer

we'll get there, first answer these two subquestions

how many blue marbles are there?
how many marbles are there total?

anonymous · Answer

Oh sorry 9 and 22

jim_thompson5910 · Answer

so the probability of picking blue is the fraction 9/22

jim_thompson5910 · Answer

after one marble is taken out, there are 22-1 = 21 marbles left

there are 13 yellow marbles

which is why the probability of picking yellow, after you pick blue, is 13/21

jim_thompson5910 · Answer

multiply these two fractions out

(9/22)*(13/21) = ??

anonymous · Answer

39/54

anonymous · Answer

i ment 139/54

anonymous · Answer

@jim_thompson5910

jim_thompson5910 · Answer

(9/22)*(13/21) = 39/154 which is approximately 0.2532

convert 0.2532 to a percentage to get 25.32%

then round this to the nearest percent to get 25%

anonymous · Answer

okay thank you!

jim_thompson5910 · Answer

np