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Liula [17]
3 years ago
14

a group of 169 students needs to be seated in the square formation for a yearbook photo how many students should be in each row

Mathematics
1 answer:
andriy [413]3 years ago
5 0
13 students per row
13 rows total
(169\13=13)
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2n^3-3n^2+2n=o<br>answer needed urgently pls​
Kazeer [188]

n = 0

Step-by-step explanation:

<h2><em>Factor the </em><em>expression</em></h2>

<em>2n ^ 3 - 3n ^ 2 + 2n = 0</em>

<h2><em>Separate into possible cases</em></h2>

<em>n(2n ^ 2 - 3n + 2) = 0</em>

<h2><em>Solve the equation</em></h2>

<em>n = 0[tex]n = 0 \:  \:  \:  \:  \:  \:  \:  \: [tex]n = 0 \:  \:  \:  \:  \:  \:  \:  \: 2n ^ 2 - 3n + 2 = 0</em>

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<em>n = 0[tex]n = 0 \:  \:  \:  \:  \:  \: [tex]n = 0 \:  \:  \:  \:  \:  \: n =  R</em>

<h2><em>there </em><em>for </em></h2>

<em>n = 0</em>

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3 0
2 years ago
Find the value of x in the following proportion:
prisoha [69]

Answer:

12

Step-by-step explanation:

6 0
2 years ago
Train A departs from Point A with a velocity of 100 km/h, Train B departs from Point B with a velocity of 200 km/h, and the dist
Bad White [126]

It would take 4 hours for both trains to meet.

Speed is the ratio of distance travelled to time taken. It is given by:

Speed = distance / time

Let t represent the time at which both trains meet, and d represent the distance covered by train A, hence:

For train A:

100 = d / t

t = d/100

For train B:

200 = (1200 - d) / t

t = (1200 - d) / 200

d/100 = (1200 - d)/200

2d = 1200 - d

3d = 1200

d = 400 km

t = 400 / 100 = 4 hours

It would take 4 hours for both trains to meet.

Find out more at: brainly.com/question/22610586

8 0
2 years ago
Your family is driving at 45 miles an hour and your families house is 135 miles away how long will it take
Fed [463]
A short simple answer of 3 hours
8 0
2 years ago
use elimination to solve. For a production of sweeney Todd in Las Vegas, orchestra seats cost $42 and mezzanine seats cost $25.
lidiya [134]

They bought 8 orchestra seats and 6 mezzanine seats.

Step-by-step explanation:

Cost of one orchestra seat = $42

Cost of one mezzanine seat = $25

No. of people = 14

Amount spent = $486

Let,

x be the number of orchestra seats

y be the number of mezzanine seats

According to given statement;

x+y=14     Eqn 1

42x+25y=486    Eqn 2

Multiplying Eqn 1 by 25;

25(x+y=14)\\25x+25y=350\ \ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2 to eliminate y;

(42x+25y)-(25x+25y)=486-350\\42x+25y-25x-25y=136\\17x=136

Dividing both sides by 17

\frac{17x}{17}=\frac{136}{17}\\x=8

Putting x=8 in Eqn 1

8+y=14\\y=14-8\\y=6

They bought 8 orchestra seats and 6 mezzanine seats.

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/11258952
  • brainly.com/question/11343416

#LearnwithBrainly

5 0
3 years ago
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