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Vladimir79 [104]
2 years ago
9

A bag contains 3 red marbles and 6 black marbles. What is the probability that you select two red marbles if you reach in the ba

g and randomly grab two marbles without replacement?
(A)2/9
(B)2/81
(C)1/36
(D)1/18
(E)1/12
Mathematics
2 answers:
Andrew [12]2 years ago
8 0

Answer:

A 2/9

Step-by-step explanation:

3+6= 9 all the marbles you have in the bag.

You need 2 reds and there are 9 marbles so, the chances are a 2 out of 9.

I hope I could help!

Ksju [112]2 years ago
3 0

Answer:

a

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
A garden hose emits 9 quarts of water in 6 seconds how much did the water emit in 10seconds
jarptica [38.1K]

Answer:

In 10 seconds, the garden hose will emit 15 quarts of water.  

Step-by-step explanation:

The amount of water emitted by the garden hose over time can be expressed as a ratio:  9/6, or 9 quarts of water for every 6 seconds of time.  We can then simplify this ratio to 3/2, or 3 quarts of water for every 2 seconds of time.  Since the ratio will remain constant, or the same, over time, we can set up an equivalent ratio, or fraction to find the amount of water emitted in 10 seconds:  3/2 = x/10.  We look at the denominators and see that 2 x 5 = 10.  In order to make the ratios equivalent, we would also multiply the numerator by 5:  3 x 5 = 15, which gives us the amount of water emitted in 10 seconds.  

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Airida [17]

Answer:

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Step-by-step explanation:

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