Mathematics High School

Solve the system using the elimination method.

2x + 2y + 5z =−1

2x − y + z =2

2x + 4y − 3z =14

What x,y, and z?​

Answers

Answer 1

Answer:

x=151/64   y=9/8 z=-51/32

Step-by-step explanation:

2x+2y+5z- (2x-y+z)=-1-2

3y+4z=-3

2x+2y+5z- (2x+4y-3z)=-1-14

-2y+8z=-15

We have two equations 3y+4z=-3 and -2y+8z=-15 (We get it due to elimination method)

3y+4z=-3 (2)

-2y+8z=-15 (-3)

6y+8z=-6

6y-24z=45

(6y+8z)- (6y-24z)= -6-45

32z=-51

z=-51/32

3y-204/32=-3

3y= -96/32+204/32

3y=108/32

y=36/32=9/8

2x+2*9/8+5*(-51/32)=-1

2x+9/4-255/32=-1

2x+72/32-255/32=-1

2x-183/32=-32/32

2x=151/32

x=151/64

Related Questions

7+8+8+6+4+23+8456+345678+123+456+234+6789+9876+654+89+556

Answers

Answer:

= 372,967

Step-by-step explanation:

hope it's help

#MASTER GROUP

# FIRST MASTER

# PHILIPPINES

Answer:

372967

Step-by-step explanation:

Help me with problems 23 “ solve for d “

Answers

Answer:

d = 72

Step-by-step explanation:

d + 13 + 95 = 180

(Angles are supplementary)

d + 108 = 180

d = 180 - 108

d = 72

What is an equation of the line that passes through the points (0, 0)and (5, 2)?

Answers

Answer:

5y - 2x = 0

Step-by-step explanation:

Equation of line is given by,

y - y1 = ( x - x1 ) ( y2 - y1)/ (x2 - x1 )

y - 0 = ( x - 0 ) ( 2 - 0 )/ ( 5 - 0 )

y = 2x /5

5y = 2x

5y - 2x = 0

This is the required equation.

Which of the following statements is true?
(A) The greatest prime factor of 18 is 9. (B) The greatest prime factor of 21 is 3.
(C) The greatest prime factor of 4 is 2
(D) The greatest prime factor of 34 is 11.​

Answers

Answer:

C is your answer

Hope this helps

Select the correct answer.
Choose the number sentence that illustrates the distributive property of multiplication over addition.

3 × (4 + 6) = (3 × 4) + (3 × 6)

3 × (4 + 6) = (3 + 4) × (3 + 6)

3 × (4 + 6) = (3 × 4) + 6

Answers

Answer :
3 x (4 + 6) = (3 x 4) + (3 x 6)


Explanation :
(4 + 6) = 10 x 3 = 30

what is the value of y ?


;-;

Answers

Answer:

C) 94

Explanation:

It is the same angle as the one that is measured to be 94°

i need help please!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

5^3

Step-by-step explanation:

5 x 5^2

Multiply 5 and 5^2

5 x 5^2 = 5^3

Answer:

Ayden you should have just asked mrs martinez

Step-by-step explanation:

5 * 5^2

5*5=25*5= 125

Nine less than a number is -24.
Find the number.
number the resu

Answers

Answer:

-15

Step-by-step explanation:

the number is N

N - 9 = -24

N = -15

Answer:

the answer is 33

Step-by-step explanation:

-24 + 9 = -33

what might of been the population of vermont in 2008???

Answers

The answer is 624,151

Sorry if I'm wrong

what is nine times the difference of a number and four written in number form?

Answers

Answer:

9(n-4)

Step-by-step explanation:

Under her cell phone plan, Aubree pays a flat cost of $50.50 per month and $4 per gigabyte. She wants to keep her bill at $56.10 per month. Write and solve an equation which can be used to determine gg, the number of gigabytes of data Aubree can use while staying within her budget.

Equation:
Answer: g =

Answers

Answer:

50.50 + 4g ≤ 56.10

Step-by-step explanation:

The variable is g, the amount of gigabytes she uses and each gigabyte costs $4 therefore the equation must be set as the flat fee, $50.50 plus 4g since it costs $4 per gigabyte to be less or equal to $56.10 since Aubree wants to stay below $56.10.

how to graph y=1.5x-2

Answers

Step 1: Plot your y-intercept.
The “-2” in the equation tells you (0,-2) is the y-intercept, so plot that on your graph.

Step 2: Plot the second point using the slope.
The “1.5” on the x is your slope. You have two options here.
Option a: From (0,-2) go up 1.5 unit and right 1 and plot a point. 1.5 = 1.5/1
Option b: From (0,-2) go up 3 units and right 2 and plot a point. 1.5 = 3/2

Either way, you have two points and can draw your line.

If you need a third point, just repeat the “up and to the right” you did already, but do it from your second point you plotted.

In general, the slope-intercept form is y=mx+b, where
- (0,b) is your intercept
- m is your slope

23. Movie lengths IT.' Exercise 21 looked at the running
times of movies released in 2005. The standard deviation
of these running times is 19.6 minutes, and the quartiles
are Qi 97 minutes and Q; = 119 minutes.
a) Write a sentence or two describing the spread in
running times based on
i) the quartiles.
ii) the standard deviation.
b) Do you have any concerns about using either of these
descriptions of spread? Explain.

Answers

The answer to ur question is ii

The following tile is made of 3 squares.

What is the area in square units of the smallest square which can be made from tiles of this shape?

Answers

Answer:

I think its 12.

3(4x+2)=20x-9x+2 what is the value of x?

Answers

Simplifying
3(4x + 2) = 20x + -9x + 2

Reorder the terms:
3(2 + 4x) = 20x + -9x + 2
(2 * 3 + 4x * 3) = 20x + -9x + 2
(6 + 12x) = 20x + -9x + 2

Reorder the terms:
6 + 12x = 2 + 20x + -9x

Combine like terms: 20x + -9x = 11x
6 + 12x = 2 + 11x

Solving
6 + 12x = 2 + 11x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-11x' to each side of the equation.
6 + 12x + -11x = 2 + 11x + -11x

Combine like terms: 12x + -11x = 1x
6 + 1x = 2 + 11x + -11x

Combine like terms: 11x + -11x = 0
6 + 1x = 2 + 0
6 + 1x = 2

Add '-6' to each side of the equation.
6 + -6 + 1x = 2 + -6

Combine like terms: 6 + -6 = 0
0 + 1x = 2 + -6
1x = 2 + -6

Combine like terms: 2 + -6 = -4
1x = -4

Divide each side by '1'.
x = -4

Simplifying
x = -4

Answer:

x = -4

Step-by-step explanation:

3(4x+2)=20x-9x+2

12x +6 = 11x +2

1x = -4

387.5 divided by 2.5

Answers

Answer:

155

Step-by-step explanation:

Use the calculator :D

Answer:

155

Step-by-step explanation:

it was
In December the snowfall was 0.03 in, and in January it
2.1 in. Which was the total snowfall?

A. 3.2in

B. 2.40in

C 2.13in

D 0.03in

Answers

C. 2.13 is the answer

Answer:

C. A. 2.13 IN I HOPE ITS CORRECT

someone please help me understand how you expand and simplify brackets:(

Answers

(3x-2)(2x²+x+5)3x (2x²+x+5) -2 (2x²+x+5)6x³+3x²+15x-4x²-2x-106x³+3x²-4x²+15x-2x-106x³-x²+13x-10this is the answer may u like it and hope full it will be the correct

please mark this answer as brainlist

please help, this is geometry

Answers

Answer:

4  2/9π   or   4.22 (repeating)π

Step-by-step explanation:

I changed my mind. I'll attempt it.

The formula for finding the arc length: [tex]2\pi (r)(\frac{theta}{360} )[/tex]

2π(4)(190/360) = 4 2/9π

82% certain the answer you're looking for is 4  2/9π (pi symbol because it asks for it in terms of pi)

Graph this line using the slope and y-intercept:
Y = x - 5
Click to select points on the graph.

Answers

Answer:

Graph of y = x - 5

Slope = 1

y-intercept = (0,5)

Find the slope of the line that passes
through each pair of points.
a. A(1,3), B(4,7)
b. C(3,5), D(2,6)
does anyone know this?

Answers

Answer:

a) [tex] \frac{4}{3} [/tex]

b) -1

Step-by-step explanation:

[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]

where (x₁, y₁) is the first point and (x₂, y₂) is the second point

6a) Slope

[tex] = \frac{7 - 3}{4 - 1} [/tex]

[tex] = \frac{4}{ 3} [/tex]

6b) Slope

[tex] = \frac{6 - 5}{2 - 3} [/tex]

[tex] = \frac{1}{ - 1} [/tex]

= -1

Pls help me w this ASAP I’ll give u brainliest

Answers

Answer:

A : 4.5

B: 1 4/5

E: 26

L:91

W: 5

H: 72.2

T: 11

M: 999

Step-by-step explanation:

hope this helps!!

The cost of 9kg of rice is Rs765 , find the rate of cost price.


Do fast for 10 points​

Answers

Answer:765/9=85 Explaination; The rate of Cost price is 85

Robert climbed 755 steps in a mix fraction of 12 1/2. How many steps did he average per minute?

Answers

Answer:

60.4 steps per minute

755 divided by 25/2 (12 1/2) equals 60.4

evaluate each expression for x=3 and y=2
x+7
8-y

Answers

Step-by-step explanation:

1)x+7

3+710

2)8-y

8-26

hope it helps.stay safe healthy and happy...
3+7=10
8-2=6
Here is the answer hope it help you

the owner of two hotels is ordering towels. he bought 11 hand towels and 22 bath towels for his hotel in Oxford, spending a total of $220. he also ordered 65 hand towels and 14 bath towels for his hotel in Greenpoint, spending $256. how much does each towel cost​

Answers

Answer:

$4.25

Step-by-step explanation:

11+22+54+14=112

$220+$256= 476

476÷112=$4.25

Refer to the figure. Find the value of x and y

Answers

Answer:

muumhn

Step-by-step explanation:

ooioop ti for any purpose ki like what would appreciate having said they should make sense since last day after some things

What is 2 x 2 ? Plz say fast
Hehe​

Answers

Answer:

It is 5*5*4/25

Hope it helps

haha

Answer:

4

Sana makatulong thanks me later

There are five people in Lexi's family. Two of them prefer vanilla ice cream and three prefer chocolate ice cream. Which fraction could be used to describe her family members that prefer chocolate ice cream?

Answers

Answer:

3/5 prefer chocolate, and 2/5 prefer vanilla

Answer:

3/5

Step-by-step explanation:

Porque 3 es lo que representa la familia Lexi de los que les gusta el helado de chocolate, entonces sería 3 de 5

U = {1, 2, 3, 4, 5, 6, 7, 8}
A = {1,3,5}
B = {1,4,6}


AUB =

Answers

Answer:

AUB= {1,3,4,5,6}...

Step-by-step explanation:

....

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