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soldier1979 [14.2K]
2 years ago
13

Jillian surveyed students at her school and found out the following probabilities: P ( freshman ) = 0.30 P ( plays instrument )

= 0.20 P ( freshman and instrument ) = 0.10 ​ P(freshman)=0.30 P(plays instrument)=0.20 P(freshman and instrument)=0.10 ​ Find the probability that a student plays an instrument given they are a freshman. P ( plays instrument ∣ freshman ) =
Mathematics
1 answer:
Tatiana [17]2 years ago
6 0

Answer: 1/3

Step-by-step explanation:

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20p - 60 = 20p - 3*20 = 20(p-3)
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Jonathons piggy bank contains 20 nickels 30 quarters and 50 one dollar coins. He picks 20 coins from the bank at random
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Answer:

All in all, Jonathan's piggy bank contains 100 coins. Among these coins, only 50 are one-dollar coins. Therefore, the theoretical probability of picking one-dollar coin from the piggy bank is equal to 50/100 or 1/2.  

Similarly, from the experiment, 20 coins were picked and among these there are 12 one-dollar coins. The answer to the second question is therefore 12/20 or 3/5.

Step-by-step explanation:

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DBE is obtained by enlarging ABC. If the area of ABC is 3 square units, what is the area of DBE?
Dennis_Churaev [7]
<span>In two similar triangles, like the one we see above, the ratio of their areas is the square of the ratio of their sides. 

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2 years ago
2.4 puzzle time how can you share five apples with seven friends
Grace [21]

1. The algebraic property of equality that is represented is the multiplication property. The answer is letter P.



2. The algebraic property of equality that is represented is the subtraction property. The answer is letter E.


3. The algebraic property of equality that is represented is the substitution property. The answer is letter M.


4. The algebraic property of equality that is represented is the division property. The answer is letter A.


5. The algebraic property of equality that is represented is the addition property. The answer is letter A.


6. The algebraic property of equality that is represented is the distributive property. The answer is Letter E.


7. The algebraic property of equality that are represented is the transitive property. The answer is letter is E.


8. The algebraic property of equality that are represented is the symmetric property. The answer is Letter A.


9. The algebraic property of equality that are represented is the reflexive property. The answer is letter C.


10. The algebraic property of equality that are represented by is the multiplication property. The answer is letter P.


11. The algebraic property of equality that are represented is the subtraction property. The answer is letter L.



12. The algebraic property of equality that are represented is the reflexive property. The answer is letter S.


13. The algebraic property of equality that are represented is the transitive property. The answer is letter U.


14. The algebraic property of equality that are represented is the symmetric property. The answer is letter K.


The given is 3 5 14 2  4 1 10 11 6 12 8 13 9 7


Plugging in the letters we got for each number, gives us MAKE APPLESAUCE.

6 0
2 years ago
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