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Vikentia [17]
3 years ago
9

A bag contains 4 red marbles and 5 blue marbles. What is the probability of randomly selecting a blue marble and then, without r

eplacing it, selecting a red marbleA bag contains 4 red marbles and 5 blue marbles. What is the probability of randomly selecting a blue marble and then, without replacing it, selecting a red marble

Mathematics
2 answers:
solniwko [45]3 years ago
7 0

R means red marbles, B means blue marbles. Wish you can understand the meaning of this picture!( ̄︶ ̄)

irga5000 [103]3 years ago
3 0

Answer: \frac{5}{18}

<u>Step-by-step explanation:</u>

P(blue) = 5 blue out of 9 total = \frac{5}{9}

P(red) = 4 red out of 8 remaining = \frac{4}{8} = \frac{1}{2}  <em>simplified</em>

P(blue)    and     P(red)

      \frac{5}{9}      x        \frac{1}{2}

= \frac{5}{18}                    

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