Answer:
28/171
Step-by-step explanation:
The probability initially of drawing a red would be 8/19 since there were 19 marbles in the bag in the beginning. However, without replacement, the probability of drawing another red would be 7/18 as there would be one less red and one less marble in the bag so to find the combined probability of getting 2 red marbles, multiply 8/19 by 7/18 to get: 56/342 = 28/171
Answer:
It is easy you just add all of the up and the answer will give you 20 so your answer will be 20
Step-by-step explanation:
ad 2+3+4+5+6 = 20
Answer:
He started with 45
Step-by-step explanation:
started with 45 gave 31 away. Is left with 14 then buys 10 more and now has 24
Answer:
x = 2 ; y =1
Step-by-step explanation:
6x-2y=10 -----------------(i)
6x+3y=15 -------------(ii)
multiply (i) by (-1)
(i)* (-1) -6x + 2y = -10
(ii) <u> 6x + 3y = 15</u>
add, 5y = 5
y= 5/5
y = 1
Put y = 1 in (i)
6x - 2*1 = 10
6x - 2 = 10
6x = 10 + 2
6x = 12
x = 12/6
x = 2