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Ierofanga [76]
3 years ago
8

Among 143 students with positive test results, there are 24 false positive results; among 157 negative results, there are 3 fals

e negative results. If one of the test subjects is randomly selected, find the probability that the subjects tested positive or used marijuana
Mathematics
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

the answer would be 300 i think

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Sedaia [141]

Answer:

The answer is 8/3 I think

4 0
3 years ago
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Calculate the surface area of the aquarium, without the top.<br>24 cm<br>80 cm<br>16 cm​
larisa86 [58]
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2 years ago
Please can someone help me?
Feliz [49]

Answer:

weight of a water=0.5

spherical ball is filled With water=0.95.

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3 years ago
Solve the system x+3=22 2x-y=2
steposvetlana [31]

Hello from MrBillDoesMath!

Answer:

x = 19, y = 36

Discussion:

x + 3 = 22     (*)

2x - y = 2      (**)


Subtract 3 from both sides of (*)

x + 3 -3 = 22 = 3 = 19  =>

x = 19


Substitute x= 19 in (**)

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38 -y + y = 2 + y =>

38 = 2 + y  =>         (subtract 2 from both sides)

38 -2 = 2 -2 + y =>

36 = y


Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


3 0
3 years ago
Mrs.Connners went to a shopping mall with $250 in her wallet. At the store, she bought a coat and spent 3/5 of the money she had
LenKa [72]

Step-by-step explanation:

step 1. 250(3/5) = 50(3) = 150.

step 2. She spent $150 for the coat.

3 0
3 years ago
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