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DaniilM [7]
3 years ago
9

There are 5 red marbles, 2 Green marbles and 3 black marbles. What is the probability that red or black is chosen?(answer in dec

imal form)
Mathematics
2 answers:
ANEK [815]3 years ago
5 0

Answer:

.8

Step-by-step explanation:

5 red marbles, 2 Green marbles and 3 black marbles = 10 marbles

P (red or black) = number of red or black/ total

                          = (5+3)/10

                          =8/10

   decimal form  = .8

dimulka [17.4K]3 years ago
5 0

Red- 50% chance (.5)

Black- 30% Chance (.3)

Explanation:

The total amount of marbles is ten, meaning that we can change it to 100% no problem.

Green - 2 = 20% = .2

Black - 3 = 30% = .3

Red - 5 = 50% = .5

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Is it possible to form a triangle with the given side lengths? 15 yd,16yd,30yd
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<u>Answer:</u>

<h2>Yes</h2>

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An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triang
jolli1 [7]

Answer:

The perimeter of the triangle can be expressed as 5x + 18.

Step-by-step explanation:

Perimeter of an object is the sum of the length of its sides.

For the required triangle, we have;

length of the base = x

length of the second side = 3x + 9

length of the third side = x + 9

Perimeter of the triangle = length of the base + length of the second side + length of the third side

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                                        = x + 3x + 9 + x + 9

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The perimeter of the triangle can be expressed as 5x + 18.

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