Answer: 40/81
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Work Shown:
B = selecting 1 blue
R = selecting 1 red
P(B) = 5/9, since there are 5 blue out of 5+4 = 9 total
P(R) = 4/9, since there are 4 red out of 9 total
P(2 blue) = P(B)*P(B) = (5/9)*(5/9) = 25/81
P(2 red) = P(R)*P(R) = (4/9)*(4/9) = 16/81
The last two equations are valid because we are sampling with replacement. Each selection is independent.
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P(2 same color) = P(2 blue OR 2 red)
P(2 same color) = P(2 blue) + P(2 red)
P(2 same color) = 25/81 + 16/81
P(2 same color) = (25+16)/81
P(2 same color) = 41/81
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P(2 different color) = 1 - P(2 same color)
P(2 different color) = 1 - 41/81
P(2 different color) = 81/81 - 41/81
P(2 different color) = (81-41)/81
P(2 different color) = 40/81
Answer:
0.64
Step-by-step explanation:
Divide and multiply by 100.
Answer:
No, 4+5(6t+1) EQUALS 9+30t
And 9+30t Equals 3(3+10t)
Step-by-step explanation:
GCF=3
3(9/3 + 30t/ 3) =
3(3+10t)
And
4+5(6t+1)
4+30t+5
30t+ (4+5)
Simplifying =
30t+9
Answer:
2820.36 feet
Step-by-step explanation:
First we need to find the length of the outer corridor, and we do that by finding the length of the circunference with a radius of 25 feet:
C = 2 * pi * r = 2 * pi * 25 = 157.08 feet
Now, as Heather walks the outer corridor 17 times and the length of 6 spoke aisles (the radius of the circunference), we have that the total distance she walks is:
Distance = 17 * 157.08 + 6 * 25 = 2820.36 feet
