A bag contains 6 red marbles and 4 yellow marbles. One marble is drawn at random and not replaced. Then a second marble is drawn. What is th

Question

A bag contains 6 red marbles and 4 yellow marbles. One marble is drawn at random and not replaced. Then a second marble is drawn. What is the probability that the first marble is yellow and the second one is red?

in progress 0
Thái Dương 3 years 2021-08-26T19:54:22+00:00 1 Answers 42 views 1

Answers ( )

  1. giabao
    1
    2021-08-26T19:56:16+00:00
    Reply

    Answer:

    2/15

    Step-by-step explanation:

    6 red marbles and 4 yellow marbles = 10 marbles

    P ( 1st is yellow) = yellow marbles / total marbles

                              = 4/10 = 2/5

    The marble is not replaced

    6 red marbles and 3 yellow marbles = 9 marbles

    P ( 2nd is red) = red marbles / total marbles

                              = 3/9 = 1/3

    P ( yellow, red) = 2/5 * 1/3 = 2/15

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )