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grin007 [14]
3 years ago
12

A bag contains 3 red marbles, 4 black marbles, and 5 yellow marbles. What are the chances of picking a marble that is not black?

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
8 0
I believe the answer is 8 out of 10 


hope this helps! 
Leni [432]3 years ago
8 0
I think it's 8 out of 12
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Write the linear equation in slope intercept form 1,3 and -3,-5
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For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It's the slope

b: It is the cut-off point with the y axis

We have two points through which the line passes:

(x_ {1}, y_ {1}) :( 1,3)\\(x_ {2}, y_ {2}): (- 3, -5)

We found the slope:

m = \frac{y_ {2} -y_ {1}} {x_ {2} -x_ {1}}

Substituting we have:

m = \frac {-5-3} {- 3-1} = \frac {-8} {- 4} = 2

Thus, the equation is of the form:

y = 2x + b

We substitute one of the points and find the cut-off point:

3 = 2 (1) + b\\3 = 2 + b\\3-2 = b\\b = 1

Finally, the equation is:

y = 2x + 1

ANswer:

y = 2x + 1

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4 years ago
Isabella is playing a board game. The probability that Isabella will lose a turn on her next turn is 11%. Which word or phrase d
anzhelika [568]

Answer:

unlikely

Step-by-step explanation:

11% is closer to 0 than it is to 1/2. when something may occur, but significantly less than half of the time, we say it is unlikely

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3 years ago
Write the algebraic expression for : half as much as a number, increased by 5
VladimirAG [237]

Answer:

(n/2)+5

Step-by-step explanation:

With n representing the unknown number, to get half of that number, divide the number by 2. n/2. Then, increase that quotient by 5.

(n/2)+5

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8 x 4= 32

8+4 = 12

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