A box contains seven green marbles, six blue marbles and eight orange marbles. Without looking, you choose two marbles out of the bag. What is the probability that both be green if you don’t replace the marble after the first pick?

Answers

Answer 1

Answer:

Answer:

The probability is 0.1 (or 10%)

Step-by-step explanation:

The probability is the ratio of the number of favorable outcomes and the total number of possible outcomes.

The favorable count is determined as follows: we are considering Green marbles. There are 7 of them in the box, so 7 possible picks at the first draw. Since you don't replace the pick, at the next drawing there are only 6 Green ones. So for each of the 7 possible first picks, there are 6 possible second picks: number of possibilities is 7 by 6 = 42.

The total number of possible drawings, irrespective of color is determined as follows: there are 21 marbles in total at first drawing, and 20 at second. So, for each first pick there are 20 possibilities, i.e., total number is 21 by 20 = 420

The probability is therefore:

P = 42 / 420 = 1 / 10 = 0.1 (or 10%)

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PLEASE HELP! THIS IS THE LAST QUESTION ON MY HOMEWORK!Fracisco's game involves 3 green,2 yellow,4 red, and 3 black marbles. If he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black?

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(2/12) X (4/11) X (3/10) = .018

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100 plus 110 is 210 added up.

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Hoped this helped.

~Bob Ross®

The area of a trapezoid is 39 square millimeters. The height of the trapezoid is 6 millimeters. One of the base lengths of the trapezoidcis 5 millimeters. What is the length of the other base of the trapezoid?

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the answers is really
8mm

PLEASE HELP I GIVE BRAINLIEST

Answers

Answer: I think that it is 312

Step-by-step explanation:

Natalia constructed a right triangle with two side lengths measuring 3 and 5 units. She constructed a second right triangle similar to the first one, with the two corresponding sides measuring 5.1 and x units in length, respectively.What is the missing length, x, of the second triangle?

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to start, you would divide 5.1 by 3 to find the scale factor. then you simply multiply that number(1.7) times 5, and get 8.5

(1.7) times 5, and get 8.5 hope i helped

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