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omeli [17]
3 years ago
8

Plssss helppp!!!!!!!!!

Mathematics
2 answers:
Ierofanga [76]3 years ago
6 0
The first answer is 25
belka [17]3 years ago
6 0

Answer:

17. x=25

18. x=72

19. x=151

20. x=28

Step-by-step explanation:

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I have 345 students and I need to fit them all into chairs. However, there are some requirements my seating plan has to keep to:
sveta [45]

In each row, the 15 number of the student is arranged. For the given condition, the equal number of the student is to be arranged.

<h3>What is seating arrangement?</h3>

A seating arrangement is an arrangement shows that how the peoples are arranged so that the complete utilization is done.

The given data in the problem is;

The total no of student is 345 students

If the same number of the students are to be arranged for the given row, the following calculation is done;

The numbers of the student in each row is found as;

\rm  n= \frac{Total \ no \ of \ student\ }{Total\ no \of \ rows } \\\\\ n= \frac{345}{23} \\\\ n= 15 \ student

Hence, in each row, the 15 no of the student is arranged.

To learn more about the seating arrangement, refer to the link;

brainly.com/question/13492666

#SPJ1

3 0
2 years ago
What is the solution to the following system?​
katrin2010 [14]

Answer: C. x=0, y=2, z=5

Step-by-step explanation:

you can just plug in the numbers and see which ones work

7 0
3 years ago
What is the irrational number
zhannawk [14.2K]

Answer:

pi is the answer, because it goes on for every

Step-by-step explanation:

Examples of Irrational Numbers. An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal. Instead, the numbers in the decimal would go on forever, without repeating.

8 0
3 years ago
2 factors that add to 6 but multiply to 60
hodyreva [135]

Answer:

The short answer is there isn’t.

Start by writing each of these as an expression:

x * y = 60

x + y = 7

Next, solve each for the same variable; in this case, y:

(x * y) / x = 60 / x

.: y = 60 / x

(x + y) - x = 7 - x

.: y = 7 - x

Next, replace y of the second expression to the first

y = 60 / x & y = 7 - x

.: 7 - x = 60 / x

Now, solve for x:

(7 - x) * x = (60 / x) * x

.: x * 7 - x^2 = 60

This is quadratic, so write it in the form of ax2 + bx + x = 0

(-1)x^2 + (7)x + (-60) = 0

.: a = -1, b = 7, c = -60

Finally solve for b:

x = (-b +- sqrt(b^2 - 4*a*c)) / 2a

.: x = (-7 +- sqrt(7^2 - 4*-1*-60)) / (2 * -1)

.: x = (-7 +- sqrt(49 - 240)) / -2

.: x = (-7 +- sqrt(-191)) / -2

The square root of a negative value is imaginary and thus there’s no real answer to this problem.

8 0
2 years ago
Jay's mother bought a rectangular rug for the dining room. The dimensions of the rug are 4 yards by 3 yards. Which is the correc
Tasya [4]
The answer will be B. Hope it help!
5 0
3 years ago
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