Answer:
x = 30°
Hope it helps you........
2/5
Since 12 out of 30 marbles were black, you can assume that the percentage of black marbles in the bag is 40% (Ex: 12/30=.4) The probability that the marble you pick is black is equal to the percentage of black marbles in the bag. 40% is equal to 2/5.
Constantinople has a total of 14 letters of which 9 are consonants
P(picking a consonant) = 9/14
P(2 letters are consonants with replacement) = 9/14 * 9/14 = 81/196
That's a huge one. I don't think that anyone will actually answer that.