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vlada-n [284]
3 years ago
11

The highest common factor of 18, 24, 36 is

Mathematics
2 answers:
yawa3891 [41]3 years ago
6 0
If you list all the common factors, (1,2,3,6), you see the highest common factor is 6
ale4655 [162]3 years ago
3 0

The highest common factor of 18, 24, 36 is 6

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The following equations are given:
jarptica [38.1K]

The solution to the variables using equations 1, 2 and 3 is x = 2, y = -1 and z = 3 and the solutions in part b hold for equation 4

<h3>Solving the variables using equations 1 and 2</h3>

There are three variables in the system

To solve the three variables, there must be at least three equations in the system of equations

Hence, the variables cannot be solved because the number of equations is not enough

<h3>Solving the variables using equations 1, 2 and 3</h3>

We have:

3x + z + y = 8

5y - x = -7

3z + 2x - 2y = 15

Make x the subject in (2)

x = 5y + 7

Substitute x = 5y + 7 in (1) and (3)

3(5y + 7) + z + y = 8

15y + 21 + z + y = 8

16y + z = -13

3z + 2(5y + 7) - 2y = 15

3z + 10y + 14 - 2y = 15

3z + 8y = 1

Multiply 16y + z = -13 by 3

48y + 3z = -39

Subtract 3z + 8y = 1 from 48y + 3z = -39

48y - 8y + 3z - 3z = -39 - 1

40y = -40

Divide by 40

y = -1

Substitute y = -1 in x = 5y + 7

x = 5(-1) + 7

x = 2

Make z the subject in 16y + z = -13

z = -13 - 16y

Substitute y = -1

z = -13 - 16(-1)

z = 3

Hence, the solution to the variables using equations 1, 2 and 3 is x = 2, y = -1 and z = 3

<h3>Can the solution work for equation 4?</h3>

We have:

4x + 5y - 2z = -3

Substitute x = 2, y = -1 and z = 3

4(2) + 5(-1) - 2(3) = -3

Evaluate

-3 = -3 --- this is true

Hence, the solutions in part b hold for equation 4

Read more about system of equations at:

brainly.com/question/12895249

#SPJ1

<u>Missing part of the question</u>

The following equations are given:

Equation #1: 3x + z + y = 8

Equation #2: 5y - x = -7

Equation #3: 3z + 2x - 2y = 15

Equation #4: 4x + 5y - 2z = -3

3 0
2 years ago
PLS HELP MY GRADE DEPENDS ON IT <br><br> Image is attached below
Lyrx [107]

Answer: the first one

Step-by-step explanation: head math

8 0
3 years ago
Find the common ratio: 4, -16, 64, -256, ...​
guajiro [1.7K]

Answer:

you multiply by -4 each time.

Step-by-step explanation:

4 x -4= -16

-16 x -4 = 64

64 x -4 = -256

hope this helps

7 0
2 years ago
Read 2 more answers
Solve by taking the square root of both sides 3(x-1)^2-162=0
Natali5045456 [20]
We know that: <span>3(x-1)^2-162=0
or (x-1)</span>²= 162:3
and (x-1)²= 54
we <span>take the square root of both sides 
* x-1=</span>√54= 3√6 or x=1+3√6
* x-1= -<span>√54= -3√6 or x=1-3√6
This equation has 2 solutions</span>
7 0
3 years ago
Read 2 more answers
What is the value of x in the inequality 7 minus 2x/ -4 + 2 &lt; -x?
Fantom [35]
Maybe it was (7-2x)/-4+2<-x then times 4 both sides <span> </span> -7+2x+8<-4x <span> </span> 2x+1<-4x <span> </span> 6x+1<0 <span> </span> 6x<-1 <span> </span> x<-1/6 <span> </span> there we go
8 0
3 years ago
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