Answer:
D
Step-by-step explanation:
mark brainliest
There are a total of 8 balls
The probability of drawing a white ball is 4/8 on the first draw.
If you replace the ball then the probability will still be 4/8 for a white ball, since these events are independent of each other you multiply 4/8 x 4/8 = 16/64 or 1/4 then the probability of drawing at least 1 red ball with replacement is 1 - 1/4 = 3/4
Now without replacement:
the probability of drawing a white ball is 4/8 since you don't replace the ball then the probability of drawing a white ball the second time is 3/7 again multiply these two probabilities: 4/8 x 3/7 = 12/56 the the probability of drawing at least 1 red ball is 1- 12/56 = 44/56 or 11/14
Answer:
3 inches 25%
4 inches 33 1/3 %
6 inches=50 %
9 inches =75 %
Step-by-step explanation:
1 foot = 12 inches
To find the percentage, we take the part over the total.
percentage = 3 inches/ 12 inches = 1/4 = 25/100= 25%
percentage = 4 inches/ 12 inches = 1/3 = 33 1/3 %
percentage = 6 inches/ 12 inches = 1/2 = 50/100=50 %
percentage = 9 inches/ 12 inches = 3/4 = 75/100=75 %
Step-by-step explanation:
Given,
y=2x=,z=3x,r=4x
Now,
x+y+z+r=360°(complete turn)
x+2x+3x+4x=360°(given)
10x=360°
x=360°/10
x=36°
Hence,
x=36°
y=2x=2×36°=72°
z=3x=3×36°=108°
r=4x=4×36°=144°
Answer:
b=9a+4
Step-by-step explanation: First you have to distribute -3(b-6) which gives you -3b+18. Then you have 27a-3b+18=6. Then you do 6-18 which gives you -12. Simplifying again you have 27a-3b=-12. Next, you have to subtract 27a from 27a-3b and it gives you -3b=-27a-12. Then divide -3 from both sides which then gives you b=9a+4
