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faltersainse [42]
3 years ago
13

There are 60 marbles in a leather bag. Some of the marbles are blue, some are green, some are clear, some are gold, and some are

red. Based on experimental probability, there is a 1 in 5 chance of pulling out a blue marble. About how many blue marbles might be in the entire bag?
5 blue marbles
12 blue marbles
15 blue marbles
8 blue marbles
Mathematics
2 answers:
mr_godi [17]3 years ago
6 0

Answer:12 blue marbles

Step-by-step explanation:

I by 5 percent chance of blue marble

Let the number of blue marbles be x

X/60=1/5

5x=60

X=60/5

X=12

sweet-ann [11.9K]3 years ago
4 0

Answer:15

Step-by-step explanation:

TOOK THE TEST BRO SWEAR

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Write an equation of the circle that has a diameter with endpoints (12, 3) and<br> (-18,3).
Mademuasel [1]

The equation of the circle that has a diameter with endpoints (12, 3) and(-18,3) is x² + y² + 6x - 6y - 207 = 0

<h3>Coordinates of center of circle</h3>

Since the endpoints of the diameter are (x₁, y₁) = (12,3) and (x₂, y₂) = (-18,3), the coordinates of the center of the circle are the midpoints of the diameter. So, the midpoints are

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So, the coordinates of the center of the circle are (-3, 3)

<h3>The radius of the circle</h3>

The radius of the circle r = √[(x₁ - h)² + (y₁ - k)²] where

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r = √[(12 - (-3))² + (3 - 3)²]

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r = √[15² + 0²]

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<h3>The equation of the circle</h3>

The equation of a circle with center (h,k) is given by

(x - h)² + (y - k)² = r² where r = radius of circle.

Substituting the values of the variables into the equation, we have

(x - h)² + (y - k)² = r²

(x - (-3))² + (y - 3)² = 15²

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The equation of the circle that has a diameter with endpoints (12, 3) and(-18,3) is x² + y² + 6x - 6y - 207 = 0

Learn more about equation of a circle here:

brainly.com/question/18435467

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