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Romashka-Z-Leto [24]
3 years ago
7

A bag contains 3 green, 4 blue, 2 red, 1 black, 6 yellow and 4 brown marbles. Suppose you randomly select a marble, replace it i

n the bag, and randomly pick a second
marble. What is the probability you pick a blue marble and then another blue marble?
Mathematics
1 answer:
natima [27]3 years ago
7 0

Answer:

1/25

Step-by-step explanation:

At the start there is a 4/20 (1/5) chance of drawing a blue marble. After putting the marble back in the bag, there is again a 1/5 chance of drawing a blue marble again. To calculate the overall probability, you must multiply the two numbers together: 1/5 x 1/5 = 1/25.

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Minchanka [31]

Answer:

susan's: 10/3

Bonnie's:5

Step-by-step explanation:

6 0
3 years ago
4 ( x- 2) = 34 for x
DerKrebs [107]
X=21/2
X=10 1/2
X=10.5
7 0
2 years ago
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*Find the area of the figure below. Use 3.14 for pi.<br><br> Area= square inches
alex41 [277]

Answer:

100.26

Step-by-step explanation:

You would find the area of the semi circles on either side of the rectangle by plugging the diameter into the formula for the area of a circle. Then you would add that to the are of the rectangle.

This is what that would look like:

1. Divide 6 (the diameter) by 2 because r=\frac{1}{2} d

r=\frac{1}{2} 6

r=3

2. plug into the formula A=\pi r^{2}

A=\pi 3^{2}

3. square the 3

A=\pi 9

4. multiply 9 by 3.14 (pi)

A=28.26

This means the area of both the semi circles added together would equal 28.26

Then you would use the formula A=lw to find the area of the rectangle

1. plug in the numbers given

A= 12 · 6

2. solve

A=72

Then add the area of the semicircles to the area of the rectangle

A=28.26+72

to get the area of the entire figure:

A=100.26

3 0
3 years ago
If Leslie travels 1/3 of a mile in 5/6 of an hour and maintains a constant speed, what is her distance per hour?
hammer [34]
D = S × T
S = D ÷ T
T =D ÷S

sorry thats all i can do
6 0
3 years ago
A cone has a volume of 24 cubic inches. What is the volume of a cylinder that the cone fits exactly inside of?
Soloha48 [4]

Answer:

72 cubic inches

Step-by-step explanation:

Volume of cone = \frac{1}{3}\pi r^{2} h   --1

Volume of cylinder = \pi r^{2} h  --2

We are given that a cylinder should fit exactly inside the cone

On comparing 1 and 2 we can see:

\text{Volume of cone}= \frac{1}{3} \text{Volume of cylinder}

Since we are given the volume of cone is 24 cubic inches .

So, 24= \frac{1}{3} \text{Volume of cylinder}

24 \times 3= \text{Volume of cylinder}

72= \text{Volume of cylinder}

Hence the volume of cylinder is 72 cubic inches

Option D is correct.

3 0
3 years ago
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