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
shutvik [7]
3 years ago
5

Please help. problem involving magic squares

Mathematics
1 answer:
lana [24]3 years ago
4 0

Step-by-step explanation:

First, let us find the magic sum in each row/column/diagonal.

Sum of numbers from 1 to 9 = 45.

45 divide by 3 rows = 15 each row.

The magic sum is 15.

For the diagonals, we have:

8 + 5 + x = Magic sum = 15,

6 + 5 + y = Magic sum = 15.

Therefore x = 2 and y = 4.

You might be interested in
Krista can type 60 words per minute.She wrote an essay by hand in 5 hours, and it is now 4 pages long and has 500 words in it. S
Mumz [18]
500 divided by 60 = 8.33... (but you round it to 8)



it would take her about 8 minutes.
7 0
3 years ago
Joe is riding his bicycle. He rides for 3 hours at a speed of 4.8 kilometers per hour. For how many kilometers does he ride?
eduard

Answer:

14.4km

Step-by-step explanation:

<h2>Speed = distance / time </h2>
  • speed = 4.8 km/h
  • time = 3 hrs
  • distance = ?

Distance = speed  * time

Distance = 4.8 * 3 = 14.4km

5 0
2 years ago
How do I find the correct slope on a graph?
-BARSIC- [3]

Answer:

To find the slope of a line from a graph, first choose 2 points along the line and write down the X and Y coordinates for each. Next, find the rise by taking the difference between the 2 Y coordinates. If the line slopes up as it moves to the right, the rise will be positive. If it slopes down, the rise will be negative.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Moises is determining the solution to the system of equations that is show below. Equation representing line A: mc018-1.jpg Poin
dimulka [17.4K]
Answer:
equation of line is:
y = -2x - 6

Explanation:
The general form of the line is:
y = mx + c
where:
m is the slope of the line
c is the y-intercept

(a) getting the slope of the line:
slope of the line is calculated using the following rule:
slope of line (m) = (y2-y1) / (x2-x1) = (-24--12) / (9-3) = -2
The equation now becomes:
y = -2x + c

(b) getting the y-intercept:
The two given points belong to the line. Therefore, to get the y-intercept, we will use one of the points and substitute in the equation and solve for c.
I will use the point (3,-12)
y = mx + c
-12 = -2(3) + c
-12 = -6 + c
c = -12 + 6
c = -6

Based on the above, the equation of the line is:
y = -2x - 6

Hope this helps :)
6 0
3 years ago
A scientist who studies sleep has developed a new technique to help people sleep each night. He
Andru [333]

Considering the situation described, the scientist's null and alternative hypothesis are described by:

Null hypothesis H_0: \mu = 0; Alternative hypothesis H_1: \mu \neq 0.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by \mu is of 0, hence:

H_0: \mu = 0

At the alternative hypothesis, it is tested if there is a difference, hence:

H_1: \mu \neq 0

More can be learned about an hypothesis test at brainly.com/question/26454209

7 0
2 years ago
Other questions:
  • Find the surface area of the cube shown below 2 1/2
    5·1 answer
  • The average rainfall in Phoenix is 8.29 inches per year. The table shows recent data on the difference in annual rainfall from t
    6·2 answers
  • A soccer game is 90 minutes long. 36 minutes have passed. What percentage of the game has passss?
    11·2 answers
  • Find the unknown angle
    10·2 answers
  • I need help on this question
    6·1 answer
  • 2. An aerial mast is supported by four wires attached to points on the
    7·1 answer
  • Answer this question here :))
    9·1 answer
  • Yolanda is planning out her square vegetable garden, One side 6 feet. How
    6·1 answer
  • HELP QUICK!!!!!!!!!!
    6·1 answer
  • Each of the 14 students in the art club needs 4 1/4 ounces of paint for a project. The art store sells paint only in 8 ounce bot
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!