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melomori [17]
3 years ago
14

What is the solution to y-2x=3 & 3x-2y=5

Mathematics
1 answer:
timofeeve [1]3 years ago
5 0

Answer:

x= -11;y= -19

Step-by-step explanation:

lets name y-2x=3    "A" ;

name 3x-2y=5        "B".

2A:     2y-4x=6

2A+B:  (2y-4x)+(3x-2y)=6+5

2y-4x+3x-2y=11

-x=11

so x= -11

so A is :  y-2 (-11)=3

y+22=3

so

y= -19

   

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Answer:

We can claim with 95% confidence that the proportion of executives that prefer trucks is between 19.2% and 32.8%.

Step-by-step explanation:

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We have to calculate a 95% confidence interval for the proportion.

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The 95% confidence interval for the population proportion is (0.192, 0.328).

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