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77julia77 [94]
3 years ago
15

John has a bag of different colored marbles. He has 6 red marbles, 3 blue marbles, 7 yellow marbles, and 5 green marbles. if Joh

n reaches into the bag and randomly pulls out a marble, why is the probability that the marble will be blue in percentage form?
Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0

Answer:

Its a 15% chance

Step-by-step explanation:

15% is the probability of the blue marble

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What is the area of the shape?
Nimfa-mama [501]
A = (14)(18) + 1/2(18)(13)
A = 252 + 117
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answer
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4 years ago
A farmer is constructing a rectangular pen with one additional fence across its width. Find the maximum area that can be enclose
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The maximum area of the pen is the highest area the pen can have

The maximum area is 16200 square yards

Let the dimension be x and y.

So, the perimeter is given as:

\mathbf{P = 360}

Because it has one additional fence, the perimeter is calculated as:

\mathbf{2x + y = 360}

Make y the subject

\mathbf{y = 360 - 2x}

The area is calculated as:

\mathbf{A = xy}

Substitute \mathbf{y = 360 - 2x}

\mathbf{A = x(360 -2x)}

Expand

\mathbf{A = 360x -2x^2}

Differentiate

\mathbf{A' = 360 -4x}

Set to 0

\mathbf{360 -4x = 0}

Rewrite as:

\mathbf{4x = 360}

Divide both sides by 4

\mathbf{x = 90}

Substitute 90 for x in \mathbf{A = 360x -2x^2}

\mathbf{A = 360 \times 90 - 2 \times 90^2}

\mathbf{A = 16200}

Hence, the maximum area is 16200 square yards

Read more about maximum areas at:

brainly.com/question/11906003

7 0
3 years ago
Barney has 20 feet of lumber that he is going to cut into 4 equal pieces for a border on his garden. Which of the following is t
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Svet_ta [14]
V^2 = 252
v^2 - 252 = 0
(v - sqrt252)(v + sqrt252) = 0

so the 2 solutions are sqrt252 and - sqrt252

=  15.87 and -15.87   to nearest hundredth.
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3 years ago
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Firstly, foil 3(2x + 1): 6x+3-2x=10

Next, combine like terms: 4x+3=10

Next, subtract 3 on both sides of the equation: 4x=7

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3 years ago
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