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
nikitadnepr [17]
3 years ago
14

Name:

Mathematics
1 answer:
Effectus [21]3 years ago
8 0

Answer:

8421  

Step-by-step explanation:

8050 < abcd < 8500

We must have a = 8, so the number is 8bcd.

The value of a is 20 times the value of b, or a= 2b.

a = 8, so b = 4.

The value of b is 20 times the value of c, or b = 2c.

b = 4, so c = 2.

The value of c is 20 times the value of d, or c = 2d.

c = 2, so d = 1.

The secret number is 8421.

You might be interested in
HALP ASAP WHAT IS THE UNIT?
Anastaziya [24]
Units squared I think is what your looking for
3 0
3 years ago
450 people are randomly selected at grocery stores across the state and surveyed on the amount of money they are spending at the
____ [38]

Answer:

Step-by-step explanation:

Sample variance when large number of samples are drawn we have tend to become a normal distribution.

Variance of the sample is different since variance

Var(x) = E(x^2)-{E(x)}^2

is the formula used for finding the variance of any sample.

But sampling distribution of variance requires repeating this process with the different samples several times.

So option A is not right

B is also not correct, C is wrong

D.The sampling distribution of the mean requires multiple samples to be compared. However, in this situation you are looking for the variance, so finding the sample variance is the same as investigating the sampling distribution of the variance.

is correct

3 0
4 years ago
Carlos swam to the bottom of a pool that is 12 feet deep. What is the opposite of Carlos elevation relative to the surface.
Yuki888 [10]
He is -12 feet deep or -12 feet below 0
7 0
3 years ago
Read 2 more answers
At a​ museum, adult admission is $ 13.00 and children admission is $ 7.50. During one​ day, a total of 1900 adult and children a
bagirrra123 [75]

Answer:

1400 adult admissions.

Step-by-step explanation:

At a museum, adult admission is $13.00

Children admission is $7.50

During one day, a total of 1900 adult and children admissions were collected

And $21,950 in admission fees was collected.

Let adult admissions during that day be x,

And children admissions be y

The simultaneous equation formed is;

x + y = 1900 ... (i)

$13x + $7.50y = $21,950 ... (ii)

Multiplying (i) by 13 and (ii) by 1 we get;

13x + 13y = 24,700  ... (i)

13x + 7.50y = 21,950 ... (ii)

(i) - (ii) we get;

5.5y = 2750

y = 500

So there were 500 children admissions and 1900 - 500 = 1400 adult admissions.

8 0
3 years ago
Can anyone help me with this?
MAXImum [283]

Answer:

Option A

Step-by-step explanation:

I found it using a calculator online. Its called Desmos Graphing Calculator. Hopefully it can help in the future!

6 0
3 years ago
Other questions:
  • 28!!!!!!!!!!!!!!!?????????
    12·1 answer
  • Which of the following estimates at a 95% confidence level most likely comes
    10·2 answers
  • Rachel invested $1000. The interest rate for her account is 8% compounded annually. What is the amount of money in her account a
    9·1 answer
  • You spin the spinner once. What is the probability that the arrow will land on 3? The spinner has 8 spots.
    13·1 answer
  • A quiz consists of 50 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean an
    13·1 answer
  • Alisha has a five-year car loan of $15,000 with an interest rate of 6 percent. If the interest is compounded annually, how much
    7·1 answer
  • Simplify. your answer can only contain positive exponets
    12·1 answer
  • What is the area of the figure below?
    9·1 answer
  • What is the image point of (1, 4) after a translation left 5 units and down 5<br> units?
    14·1 answer
  • Solve for x on number 13
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!