Question

A bag contains 3 blue marbles, 9 green marbles, and 11 yellow marbles. Twice you draw a marble and replace it. Find P(blue, then green).
P.S. Pro-Truth-Effetiant, pls HELP :{

Answer 1

3/23 to get a blue marble You replace the marble so there are still 23
9/23 to get a green marble.

Multiply those 2 fractions to get your answer

Answer 2

B = 3/23

G = 9/23

Take it from there.

Answer 3

HEY! Pro-Truth-Efficient! You came!!! Thx soo much 100%
But.. I'm really struggling with the rest of the questions :( Can you post the answers for the combinations quiz; course 2; Unit 2 :D PLS? I already did the quiz but if I get lower than 70, my parents take away my computer D: plz, plz, plz?

Answer 4

(1) A coin is tossed, and a standard number cube is rolled. What is the probability that the coin shows heads and the number cube shows an even number?
Answer = 1/4
(2) A bag contains 3 blue marbles, 9 green marbles, and 11 yellow marbles. Twice you draw a marble and replace it. Find P(blue, then green).
Answer = 27/529
(3) The diagram shows the contents of a jar of marbles. You select two marbles at random. One marble is drawn and not replaced. Then a second marble is drawn. What is the probability of selecting a red marble and then another red marble?
Answer = 1/20
(4) From a committee of 6 girls and 4 boys, a name is selected. Then another name is selected. What is the probability that both people drawn will be girls?
Answer = 1/3
(5) Write the number of permutations in factorial form. Then simplify.
J K L M N O P
Answer = 7!;5,040
(6) How many 2-digit numbers can be formed using only the digits 2, 3, 5, and 6, if the digits are not be repeated within a number?
Answer = 12
(7) A juice company decides to test five different brands of juice. The different brands have been labeled A¸ B¸ C¸ D¸ and E. The company decides to compare each brand with the other brands by pairing together different brands. How many different pairs will result by selecting two different brands at a time?
Answer = 10
(8)There are 9 candidates running for 3 seats on a committee. How many different election results are possible?
Answer = 84
(9) How many different ways are there to rearrange the letters of the word EXAM, if you don't care if the result is a recognizable word?
Answer = 24
Have a great day and hope this helps :) Stay Safe and make sure to check out more Pro-Truth-Efficient at jiskha.com: Homework Help :D

Answer 5

THANK YOU SO MUCH 100% YAY :DDD
Stay Safe and SEE YA 'ROUND

Answer 6

omg thxx