1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Scorpion4ik [409]
3 years ago
15

Please help, thank you

Mathematics
1 answer:
GuDViN [60]3 years ago
7 0

Answer:

-3y = 3

Step-by-step explanation:

x - 5y = 6  

-x + 2y = -3        Add both equations

     -3y = 3

You might be interested in
An airline finds that 5% of the persons making reservations on a certain flight will not show up for the flight. If the airline
vivado [14]

Answer:

The answer to the question is;

The probability that a seat will be available for every person holding a reservation and planning to fly is 0.63307.

Step-by-step explanation:

Let the sample size =n = 100

The success probability = 5 % = 0.05

Number of tickets sold = 105 tickets

In the case where there the airline has found that 5 % will not show up, then every passenger should have  a seat, we have  

A Binomial distribution is appropriate where there is a chance for a certain number of successful outcomes from a number of independent trails

However n·p and n·q must be ≥ 5 for there to be a normal approximation of a Binomial distribution thus

n·p = 105×0.05 =  5.25 ≥ 5

and n·q = n(1 - p) = 105 (1 - 0.05) = 99.75 ≥ 5

As the requirements are met, we can proceed with the approximation of the Binomial distribution by the normal distribution

 z = \frac{x-np}{\sqrt{np(1-p)}  } = \frac{4.5 - 105*0.05}{\sqrt{105*0.05(1-0.05)} } =  - 0.3358

We therefore have P(x ≥ 5) = P( x > 4.5) = P(z > -0.34) = 1 - P(z < -0.34) = 1 -0.36693 = 0.63307

Another way to solve the question is as follows

p = 0.95 q = 0.05

μ = np = 0.95*105 = 99.75, σ = \sqrt{npq} = 2.233

P (x≤100) = P(z = P(z<0.34) = 0.63307.

6 0
3 years ago
Which of the following is equal to the fraction below?
Alecsey [184]
Wish I can help , but you didn’t show any fractions nor anything I can use to answer your question . Can you mark me brainliest for effort !?
4 0
3 years ago
What is (2,8) m=3 in slope intercept form
nignag [31]

Answer: y=3x+2

Step-by-step explanation:

y=mx+b

Plug in point (x,y)-->(6,8) m=3

8=3 (6) +b

2=b

5 0
3 years ago
In 16 years, Ben will be 3 times as old as he is now. How old is he?
Igoryamba

First, do 16 x 3 to get 48. Then subtract 16 and youll get 32

3 0
3 years ago
Read 2 more answers
Determine the next step for solving the quadratic equation by completing the square.
Lady_Fox [76]

Answer:

-7/2 = -2(x-1/2)^2

Step-by-step explanation:

0 = –2x^2 + 2x + 3

Subtract 3 from each side

-3 = –2x^2 + 2x

Factor out the -2

-3 =- 2(x^2 -x)

Take the coefficient of x and divide by 2 and square it

-1 /2 = -1/2 ^2 = 1/4

Add it to each side  Remember the -2 on the outside so we need to multiply it by -2  

-2 *1/4 =  -1/2

-3 -1/2= -2(x^2 -x +1/4)

-7/2 = -2(x^2 -x +1/4)

-7/2 = -2(x-1/2)^2

6 0
3 years ago
Read 2 more answers
Other questions:
  • Mrs.Henderson makes punch by mixing 10.9 liters of apple juice, 0.6 liters of orange juice, and 8 liters of ginger ale. She pour
    11·1 answer
  • Liam has 9/10 gallon of paint for painting the birdhouses he sells at the
    12·2 answers
  • Triphasil-28 birth control tablets are taken sequentially, 1 tablet per day for 28 days, with the tablets containing the followi
    10·1 answer
  • Find the dimensions of a rectangular piece of property that has a perimeter of 610 feet if the length is twenty feet more than t
    10·1 answer
  • PLZZZZ NEED HELP!!!!!
    6·1 answer
  • If your roots are -3 and -1, your factors will be (x+3)(x+1), yes? But if your roots are positive, like 3 and 1, would it still
    5·1 answer
  • Log (z ^ 3)/(x ^ 4 * y ^ 5) with steps please
    6·1 answer
  • Help. again............................
    10·2 answers
  • Can someone please explain how to simplify expressions that have negative or positive exponents
    14·1 answer
  • An animal shelter has dogs and
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!