Solve for me please

Solve For Me Please

Answers

Answer 1

Answer:

[tex]{ \rm{10x + 5y + 2z = 5}} \\ { \rm{4x - 5y - 5z = 8}} \\ { \rm{3x + 5y + 4z = 1}}[/tex]

• First find x

[tex]{ \rm{10x = 5 - 5y - 2z - - - (i)}}[/tex]

• Find y

[tex]{ \rm{4x = 8 + 5y + 5z - - - (ii)}}[/tex]

• Find z

[tex]{ \rm{3x = 1 - 5y - 4z - - - (iii)}}[/tex]

equate the three equations:

[tex]{ \rm{0z - 10= 2y}} \\ \\ { \boxed{ \bf{y = - 5}}}[/tex]

Find z

[tex]{ \rm{z = ( - 1 \times - 5)}} \\ \\ { \boxed{ \bf{z = 5}}}[/tex]

Find x

[tex]{ \rm{3x + 5y + 4z = 1}} \\ \\ { \rm{3x - 25 + 20 = 1}} \\ \\ { \rm{3x = 6}} \\ \\ { \boxed{ \bf{x = 2}}}[/tex]


Related Questions

Can you help please.?

Answers

Answer:

2.33yd or 2 1/3yd

Step-by-step explanation:

7/3=2.33

a stock market fell 25 points the following day it dropped another 12 points what was the total change in the stock market after two days

Answers

Answer: its either c or b

Step-by-step explanation:

James has $10 less than three times the amount Amy has. Which expression represents James' amount if Amy has d dollars?

Answers

Answer:

james has 3d-10

Step-by-step explanation:

Amy has d dollars

james has 10 less than 3 times Amy's amount

so the answer will be 3d - 10

hope it helps : )

The expression that represents James' amount is 3d - 10. Then the correct option is A.

What is a function?

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

A sentence-to-equation translation is a process of turning a given statement into an expression or equation.

James has $10 less than Amy, who has three times as much money.

Let d be the amount Amy has. Then the expression is given as,

⇒ 3d - 10

The expression that represents James' amount is 3d - 10. Then the correct option is A.

More about the function link is given below.

https://brainly.com/question/5245372

#SPJ5

The missing options are given below.

a) 3d - 10

b) 10 - 3d

c) 3d - 30

d) 30 - 3d

What is answer to 2 + 3m =

Answers

You can't really do anything with it cause it's fully simplified

Answer:

Nothing you can do because it is already simplified. So yea

Step-by-step explanation:

If y varies directly with x which equation describes x = 72 and y = 36?

Answers

Answer:

k = 1/2

Step-by-step explanation:

direct variation equation is y = kx where 'k' is the constant of variation

substitute 36 for 'y' and 72 for 'x' to get:

36 = 72k

solve for 'k' to get:

k = 36/72 or k = 1/2

Students were asked to find an equivalent value of the expression 13 divided by 19/100 which could a student use?

Answers

Answer:

68.4210526316

you first divide 19/100 and then you divide the out put 13/ 0.19

Step-by-step explanation:

Write an algebraic expression to represent the coast of m gallons of gassoline if each gallon coast $1.45

Answers

Answer:

$1.45m

Step-by-step explanation:

No one answered the palm tree question so I will put this question up for 15 points. Please answer now it’s due!

Answers

Answer:

15 feet

Step-by-step explanation:

Answer:

15 feet is the answer ok

can anyone heelp me pls

Answers

Answer:

lotion 3,. suspension 2, capsule 1 , I think

A 2-column table with 9 rows titled December Temperatures. Column 1 is labeled Day with entries 1, 2, 3, 4, 5, 6, 7, 8, 9. Column 2 is labeled Temperature (degrees Fahrenheit) with entries 33, 34, 42, 36, 39, 36, 39, 40, 44.
What is the interquartile range for the data set?

The answer is 6

Answers

Answer:

Step-by-step explanation:

I really need points but good luck with your question

Find the value of x. 1/2 - 15 = 2/5x - 7​

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)

Step-by-step explanation:

In pic

(Credit: Symbolab )

x = 80

what is rhe vertex of the graph of the function f(x)=x²+6x+9​

Answers

what is rhe vertex of the graph of the function f(x)=x²+6x+9

State the slope for the equation.


y=5x+8


Enter you answer in the box.


Slope: m=

Answers

Answer:

Step-by-step explanation:

The y-intercept of the equation is -8.

You can test this by making X = 0 and solving algebraically. Similarly, if you make y = 0, you can solve the X value. This means X = 8/5

Co-ordinates (8/5, -8)

increase 600 by 8⅓ percent ​

Answers

Answer:

650

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Find the mass of 250 ml of water. The density of water is 1 g/ml.
D= Density
M=
Volume - 10ml
What is the Mass?
V=
Mass - 70
Density
Alaalam

Answers

Answer:

250g

Step-by-step explanation :

250ml x 250g/ml = 250 g

To get the mass (in grams), you need to divide the ml's off and get the g alone.

the nth term of a sequence is n(n-8)÷√n+3
find the 1st and 6th terms

Answers

Answer:

-4 and -2✓6+3

Step-by-step explanation:

use pemdas

1(1-8)÷✓1 + 3

-7÷1+3

-4

6(6-8)÷✓6+3

-12÷✓6+3

multiply fraction by ✓6 on bottom and top to get rid of square root on bottom

-12✓6÷6+3

divide -12 by 6 and put radical next to it

-2✓6+3

Which equation represents a line which is parallel to the line 3y−2x=−24?

Answers

Answer:

Any equation of the line with slope 2/3.

Parallel lines have identical slope.

Step-by-step explanation:

3y - 2x = - 24

3y = 2x - 24

y = 2/3x - 8

What is the unit rate of 124 pages and 2 hours

Answers

Answer:

62 pages per hour.

Step-by-step explanation:

Divide 124  ÷ 2.

Hi i need help with this !

Answers

Answer:

4y+8x

Step-by-step explanation:

well, because that was the only one that did not have a line on desmos.

i rlly need help help me out pls

Answers

Answer:

San francisco

Step-by-step explanation:

once you divide the distance by time then multiply the answer by the longest amount of time (aka 4)

San francisco = 2556

Minot = 1826

Phoenix = 2252

Pls answer the question in the photo

Answers

Answer:

correct answer to the problem is x= -9

Joe answered correctly.

Answer: nick

Step-by-step explanation: subtract 6 from both sides to get 0 on one side and then divide both sides by 2 to get x on its own

A photographer made a 5-inch by 8-inch print of a photo. He then made a 10-inch by 16-inch print of the same photo.

Which scale factor was used to create the larger photo from the smaller photo?

Answers

The photographer just doubled the size of the 5 x 8 in photo

What is the slope of the line?

Answers

Answer:

-3

Step-by-step explanation:

we take two points to find slope m

lets take ( 1, 4) and ( 2, 1)

then m=(1-4)/(2-1)

m=(-3)/(1)

m= -3

Which graph represents the function f(x)=0.5x+4?


Which graph represents the function f(x)=−2x−1?

Answers

Answer:

Step-by-step explanation:

1.)The 4th picture will be the correct one.

Step-by-step explanation:

The first picture shows the graph of f(x) and in the options there are pictures of graph of g(x) = f(x) -1

So, it is clear from the equation of the functions that the graph of f(x) and g(x) will be similar but the the y value in g(x) will be 1 less than the y value in f(x) corresponding to a certain x value.

So, the graph will translate down by 1 unit.

Therefore, the 4th picture will be the correct one.

2.)-(2^x) - 1 will have a y-intercept of -1-1 = -2, a horizontal asymptote of y=-1, and will be decreasing everywhere. The third selection is the graph that has these characteristics.

Answer:

graph 4

Step-by-step explanation: because I love you <3 ;)

a school has 400 feet of fencing to build a set of 3 athletic fields as shown below. What dimensions should they use to build the largest possible athletic complex. Include appropriate units with your answer.

Answers

The area of a shape is the amount of space it occupies.

The dimensions to build the largest possible athletic complex is 100 by 50 feet

Assume the length of the fence is y.

So, we have:

[tex]\mathbf{Area = xy}[/tex]

[tex]\mathbf{Perimeter = 2y + 4x}[/tex]

Substitute 400 for perimeter

[tex]\mathbf{2y + 4x = 400}[/tex]

Divide through by 2

[tex]\mathbf{y + 2x = 200}[/tex]

Make y the subject

[tex]\mathbf{y = 200 -2x}[/tex]

Substitute [tex]\mathbf{y = 200 -2x}[/tex] in [tex]\mathbf{Area = xy}[/tex]

[tex]\mathbf{Area =x(200 - 2x)}[/tex]

[tex]\mathbf{Area =200x - 2x^2}[/tex]

Differentiate

[tex]\mathbf{A' =200 - 4x}[/tex]

Set to 0

[tex]\mathbf{200 - 4x = 0}[/tex]

Collect like terms

[tex]\mathbf{4x = 200}[/tex]

Divide both sides by 4

[tex]\mathbf{x = 50}[/tex]

Recall that: [tex]\mathbf{y = 200 -2x}[/tex]

So, we have:

[tex]\mathbf{y = 200 - 2 \times 50}[/tex]

[tex]\mathbf{y = 200 - 100}[/tex]

[tex]\mathbf{y = 100}[/tex]

Hence, the dimensions to build the largest possible athletic complex is 100 by 50 feet

Read more about areas and perimeters at:

https://brainly.com/question/11957651

solve both pls brainliest

Answers

Answer:

x= 4.66

v-9= 63

Step-by-step explanation:

Hope this helps! :)

*Victor was 72 btw*

In the rectangle below, AE = 2x+5, CE=5x-13, and mZECD=28°.
Find BE and m ZEBC.
А
WO
B
E
B
B
m ZEB
D
С

Answers

Answer:

https://www.portnet.org/cms/lib6/NY01001023/Centricity/Domain/290/Scanned-image.pdf

Step-by-step explanation:

...

Needs to show work.
Find the X intercept and the Y intercept for 2x-6y=12

Answers

Answer:

x: (6,0)

y: (0,-2)

Step-by-step explanation:

To find the x-intercept, substitute in  0  for  y  and solve for  x . To find the y intercept, substitute in  0  for  x  and solve for  y .

Ex -

X : 2x -6(0)=12

2x=12

2 cancels out with 2

12/2 = 6

Y: 2(0 )- 6y =12

-6y=12

negative 6 times negative 6 cancels

12/-6 = -2

Answer:

See Below

Step-by-step explanation:

Given: 2x-6y=12

Plug 0 in the equation for y:

y is zero

2x-6(0)=12

2x=12

The x-intercept:  (6,0)

Plug 0 in the equation for x:

x is zero

2(0)-6y=12

−6y=12

The y-intercept:  (0,−2)

Erin ran 5 km in 25 minutes. What is her speed in km per minute? (Answer as a decimal)​

Answers

Answer:

what what what what what what what what

Show all work to multiply quantity 6 plus the square root of negative 64 end quantity times quantity 3 minus the square root of negative 16 end quantity

Answers

Answer: 50

Step-by-step explanation:

[6+√-64] × 3-√-16

(6+8i)(3-4i)

6(3-4i)+8i(3-4i)

18-24i+24i+32

18+32=50

the answer is 50

Answer:

fifty

Step-by-step explanation:

fifty

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