Answer:
B. 0.602%
Step-by-step explanation:
Probability is essentially (# times specific event will occur) / (# times general event will occur). Here, we have a few specific events: draw a quarter, draw a second quarter, draw a penny, and draw another penny. The general event will just be the number of coins there are to choose from.
The probability that the first draw is a quarter will be 4 / (4 + 8 + 9) = 4/21.
Since we've drawn one now, there's only 21 - 1 = 20 total coins left. The probability of drawing a second quarter is: (4 - 1) / (21 - 1) = 3/20.
The probability of drawing a penny is: 9 / (20 - 1) = 9/19.
The probability of drawing a second penny is: (9 - 1) / (19 - 1) = 8/18.
Multiply these four probabilities together:
(4/21) * (3/20) * (9/19) * (8/18) = 864 / 143640 ≈ 0.602%
The answer is B.
Answer:
n = 7m
Step-by-step explanation:
n = k(m)
21 = k(3)
k = 21/3 = 7
n = 7m
5g=230
=5. /5
g=46
so 5 is the coiffieficent which mean 5 multiplie a variable. so to get the g by itself we must divide both sides by 5. 5 cancels out 5. And 230÷5 is 46. That mean g is equal to 46.
The total distance would be the sum of these 4 distances.
7.04m+18.81m+18.39m+19.94m=64.18m
Hope i helped!!! good luck.
