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ICE Princess25 [194]
3 years ago
14

The probability of picking two black marbles from a box at random without replacement is 1091 . The probability of drawing a bla

ck marble first is 514 . What is the probability of picking a second black marble, given that the first marble picked was black?
Mathematics
2 answers:
Nana76 [90]3 years ago
5 0
<u><em /></u><em />The correct answer to the question above is 4/13. Below it shows how it's achieved...<u><em>

EQUATION:</em></u>
 
P(A|B) = <u>P(A ∩ B)
</u>                 P(B)
<u>
</u>Step 1: Identify 
P(B) = 5/14 
P(A ∩ B) = 10/91
<u>
</u>Step 2: Insert into the equation and Solve
10/91 ÷ 5/14
Use reciprocal to divide
10/91 × 14/5 
Simplify the answer 
140/455
Simplified (Final Answer)
4/13 


<u>
</u>
<u>

</u>
EastWind [94]3 years ago
4 0

Answer:

4/13

<em>This is the correct answer! I just took the test! Good luck!!</em>

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Murljashka [212]

Jada has saved 60% of $60.  This is a percent of number question.

First we need to know 60% of $60

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8 0
3 years ago
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Use the following diagram to answer question 4 and 5
baherus [9]

Answer:

3x-13+2x+4=116( the sum of two interior angle is epual to the sum of exterior angle )

5x =116-9

5x=107

x=21.4 degree

then

angle a= 3*21.4-13

a=51.2degree

angle b=2*21.4+2

b =44.8degree

Step-by-step explanation:

plz make me brainliest

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2 years ago
$10,000 at an annual rate of 7%, compounded semi-annually, for 2 years
forsale [732]

Answer:

\$13,107.96

Step-by-step explanation:

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Therefore, we can set up the following equation to find the new balance after 2 years:

\text{New balanace}=10,000\text{ (old balance)}\cdot 1.07\cdot 1.07\cdot 1.07\cdot 1.07,\\\text{New balanace}=10,000\cdot 1.07^4=\boxed{\$13,107.96}

8 0
3 years ago
What is the slope of this line?
icang [17]
Y = 2
slope = 0

hope it helps
7 0
3 years ago
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Help me please I'll give brainliest
Anarel [89]
I am not sure but i think its $4.00 for 2 2/3 lb 


hope this helps 
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