Abag contains 9 marbles 3 are green 4 are red and 2 are blue. bob chooses a marble at random and without putting it back chooses one at random. what is the probability that the first marble is blue and the second is green?

5/9

Step-by-step explanation:

a bag contains 9 marbles

3green 4red & 2blue

probability of picking a blue and green marble is 2+3 =5

so therefore the probability of picking a blue and green marble is 5/9

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72