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Pepsi [2]
3 years ago
13

A bag contains hair ribbons for a spirit rally. The bag contains 3 black ribbons and 12 green ribbons. Lila selects a ribbon at

random, then Jessica selects a ribbon at random from the remaining ribbons. What is the probability that Lila selects a black ribbon and Jessica selects a green ribbon? Express your answer as a fraction in simplest form.
Mathematics
2 answers:
xenn [34]3 years ago
6 0
Total ribbons = 3 + 12 = 15
So, 
3/15 = black
12/15 = green

Therefore the probability Lila selects the black ribbon first is 12/15

Because Lila has taken one away, the total now decreases by one to 14
Therefore, there are 3/14 black ribbons now, and thus the probability that Jessica takes one is 3/14.

Then you just multiply the two together, so
12/15 x 3/14 = 36/210 = 6/35

So the final, simplified answer is 6/35
Eddi Din [679]3 years ago
5 0
The probability of Lila selects a black ribbon is
3/15
\frac{3}{15}



the probability that Jessica selects a green ribbon is
12/14
\frac{12}{14}





good luck
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