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Ivahew [28]
3 years ago
11

Answer two questions about Equations A and B:

Mathematics
2 answers:
Gnesinka [82]3 years ago
8 0

Answer:

Jake interphalangeal the same time I was waiting to hear that your company and they will have the same

Scilla [17]3 years ago
8 0

Answer: A

2x-1=5x

-2x   -2x

-1=3x

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One month bob rented 5 movies and 2 video games for a total of $26 . the next month he rented 3 movies and 8 video games for a t
dezoksy [38]
Let x be the number of movies rented 
Let y be the number of video games rented 

(5x+2y=26)4
- 3x+8y=53 

 20x+8y=104 
-3x+8y=53
-----------------
17x       =51 
x=51/17 
x=3 

5x+2y=26 
5(3)+2y=26 
2y=26-15 
y=11/2 
y=5.5 

Therefore, the movies cost $3 and the video games cost $5.5 

Hope I helped :)
4 0
3 years ago
Solve the equation.<br> 2^-x = 1<br><br> PLEASE HELP!!!
Zarrin [17]
1 is the correct answer.

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4 years ago
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adell [148]
What is the question??
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3 years ago
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Alice is baking a cake. She doesn’t intend to eat it, but tells you half of what you find is yours. She tells the same thing to
tankabanditka [31]

Answer: a) P = 0.5, b) P = 0.07

Step-by-step explanation:

Hi!

Lets call X₁ the time at which you arrive, and X₂ the time at which Bob arrives. Both are random variables with uniform density in the interval [0, 60] (in minutes). Their joint distribuition is uniform over the square in the image, with value P = 1/(60*60) = 1/3600.

a) For you to get more cake than Bob, you should arrive earlier. This event is A = { X₁ < X₂ }, the shaded triangle in the figure.The area of this event (set) is half the total area of the square, so P(A) = 0.5.

It makes sense, beacuse its equally probable for you or Bob to arrive earlier, as both have uniform density over the time interval.

b) In this case you arrive later than Bob, but less than 5 minutes later. So the event is B = { X₂ < X₁ < (X₂ + 5) } . This is the gray shaded area in b) part of the image. Its area is the difference two triangles (half square - blue triangle), then the probability is:

P(B) = 0.5 - \frac{(0.5*55^2)}{3600} =0.07

7 0
4 years ago
I need to do 41,43,45,and 47
SSSSS [86.1K]
41.=30°
43.=60°
45.=60°
47.=30°
7 0
3 years ago
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