-- The first urn has 9 balls in it all together, and 2 of them are white.
If you don't peek, then the prob of pulling out a white ball is 2/9 .
-- The second urn has 13 balls in it all together, and 3 of them are white.
If you don't peek, then the prob of pulling out a white ball is 3/13 .
-- The probability of being successful BOTH times is
(2/9) x (3/13) = ( 6/117 ) = about 0.0513 or 5.13% (rounded)
Answer: 1 1/3 packs of treats
Step-by-step explanation:
2 1/9 + 5/9 = 2 6/9, which can be simplified to 2 2/3.
We subtract 2 2/3 from 4, giving us 1 1/3
If r=-3, then it would be -3-12 which equals -15
Answer:
4:2:1 is common ratio for 4,2, and 1
Purple = 1/5 of the colors
5 colors per tray, 20 trays = 5 * 20 = 100 colors
1/5 * 100 = 100/5 = 20
20 colors are purple
20/100 = 1/5
1/5
