3 years ago

a bag contains 2 red marbles, 3 green marbles, and 2 black marbles what is the probability of drawing out a black marble

Mathematics

2 answers:

GuDViN [60]3 years ago

8 0

Answer:

P (black) = 2/7

Step-by-step explanation:

We need to know the total amount of marbles.

2 red + 3 green + 2 black = 7 marbles

P ( black) = number of black marbles / total marbles

= 2 /7

Thepotemich [5.8K]3 years ago

3 0

Answer:

It should be 2:7 (or, written as a fraction 2/7)

Step-by-step explanation:

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3 years ago

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ZanzabumX [31]

Answer:

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Step-by-step explanation:

The question is

Find the value of XY

see the attached figure to better understand the problem

we know that

$WZ=WX+XY+YZ$ -----> by segment addition postulate

If X is the midpoint WY

then

$WX=XY$

substitute in the formula above

$WZ=XY+XY+YZ$

$WZ=2XY+YZ$

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svlad2 [7]

Answer:

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Step-by-step explanation:

3x + -3 = 3

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3 years ago

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