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Trava [24]
3 years ago
5

A bag contains 8 black marbles and 20 yellow marbles. You reach into the bag and pull out a black marble. Then you reach into th

e bag and pull out another marble. What is the probability that the second marble is yellow?
Mathematics
1 answer:
sveticcg [70]3 years ago
6 0
You have a bag containing 8 + 20 = 28 marbles.

After you pull a black marble you have 28 - 1 = 27 remaining marbles.

There are 20 yellow marbles in the bag.

The probability of pulling a yellow marble is now

\frac{20}{27} which \: is \: approximately \: equal \: to \\ 74.07\%
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{[20/(8+2)]^6+6}/(4^2/2)
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3 years ago
Read 2 more answers
2) An $80 text book was on sale for $49.60 at the used book store. By
nadya68 [22]

Answer:

38%

Step-by-step explanation:

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Price after reduction = $ 49.60

Reduction = 80 - 49.60  = $30.40

Percentage of decrease = \frac{reduction price}{original price}*100

                                         = \frac{30.40}{80}*100\\\\=\frac{3040}{80}

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2 years ago
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Q10. Assertion: 2.05 Kg = 20500 g.
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Answer:

b. only reason is correct

2.05 kg=2.05 ×1000 g

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5 0
3 years ago
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2 years ago
10+x=5(1/5x+2)<br> solve for x
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10+x=5(1/5x+2)
10+x= x+10
     -x   -x
10=10

Answer- All real numbers or infinity  many problems 
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3 years ago
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