solve the system of equation
2x-y-3z=20
3x+y+6z=4
x+2y+9z=-16

Answers

Answer 1
What are you solving for.?

Related Questions

Heather purchased a sapphire bracelet during the Jewelry Emporium's Semi-Annual Clearance Sale. If Heather paid $149.50 for the bracelet and the original price is $230.00, how much of a discount did she receive?
A.
35%
B.
30%
C.
45%
D.
65%

Answers

She received a 35% discount (A).

230 * 0.35 = 80.5
230 - 80.5 = 149.50, true
By guess and check, it’s A

Solution: A

a company dyes two sizes of rugs a small rug requires 8 hours for dyeing and a medium-sized rug requires 12 hours of dyeing the dryers have to make at least 22 guys ansld that must do it in less than 240 hours let x equal small rugs abd u equal medium rugs state a possible ordered pair solution for the system of inequalities justify mathematically using both inequalities​

Answers

Answer:

C says 8x+12y, but D says 12x+8y, instead of 8x and 12y. The correct answer is C, I guess

Step-by-step explanation:

Let x=small rugs and y=medium rugs. It takes 8 hours to dye a small rug, so you would write 8x. It takes 12 hours to dye a small rug, so you would write 12y. Those two would need to be added together. The dyer needs to dye at least 22 rugs in 240 hours, so you would need a less than or = to sign.

I'm not sure which choice has the line beneath, indicating that the sign is a "less than or equal to" sign, but the answer is gonna be either C or D.

8x+12y≤240, or 12y+8x≤240

HELLLLLLP’!!!!
Suppose f(x)=2x-3 describe how the graph of g compares with the graph of f G(x)=f(x)+11

Answers

Answer:

Step-by-step explanation:

g(x) = 2x - 3 + 11

= 2x + 8.

The graph of g is parallel to the graph of f but f is translated upwards by 8 units.

Divide 350rs in 3:4 ratio


plzzz fast​

Answers

Answer:
150 : 200

Explanation:
3 + 4 = 7
350 / 7 = 50
50 x 3 = 150
50 x 4 = 200

PLEASE HELP ASAP!!!!!!!!!!!!!!!!

Answers

Answer:

25

Step-by-step explanation:

180-130=50

50/2=25

Answer:

x = 25 degrees

Step-by-step explanation:

the figure is an isosceles triangle

x + x + 130 = 180

2x + 130 = 180

2x = 180 - 130

2x = 50

x = 25 degrees

Solve x in the triangle. Round your answer to the nearest tenth

Answers

Answer:

9.5

Step-by-step explanation:

Im just bult different.

ayo if i get this right can i get brainliest, i only need 2 more brainliest to get to the next rank :)

Martha drew a pair of intersecting non-perpendicular lines, I and m. She numbered one pair of vertical angles <1 and <2, and she labeled the second pair of vertical angles <3 and <4. Martha made the conjecture that <1 =~ <2 to validate this conjecture, which of the following would be appropriate reasoning?

A. M<1+ M<2 +M<3 + m<4 = 360

B. The sum of the measures of angles of a triangle is 180°

C. The measure of all right is 90°

D. Because <1 and <2 are each supplementary to <3, they are therefore congruent

Answers

Answer:

b 3eedeehheheehejwjjhhhejjererj

HELPPPP... Don't just use my points people

Answers

Answer:

33

Step-by-step explanation:

what is the lowest term of 35/63

Answers

Answer:

5/9

Step-by-step explanation:

In geometry, components used in deductive reasoning include all the following except:

A.) Postulates
B.) Theorems
C.) Observations
D.) Definitions

Answers

I think is a) postulates :)

Answer:

the answer is observations

Step-by-step explanation:

Find the value of r in the triangle shown below.
X =
50°
41°

Answers

Answer:

89

Step-by-step explanation:

180 - (50 + 41)

180 - 91

89

.ie x= 89

because total sides of triangle = 180 degree

hope this answer helps!!!!

At the end of a snow storm, Audrey saw there was a lot of snow on her front lawn. The temperature increased and the snow began to melt at a steady rate. There was a depth of 10 inches of snow on the lawn when the storm ended and then it started melting at a rate of 2 inches per hour. Write an equation for S, in terms of t, representing the depth of snow on Audreys lawn, in inches, t hours after the snow stopped falling.

Answers

The expression for S, expressed in terms of t, which represents the amount of snow on Audrey's lawn, is as follows:

S = 0 - 2t

When the storm first began, there were 10 inches of snow in Audrey's yard. This can be shown as a constant value.

2 inches of snow melt each hour when it first starts to melt. We deduct 2t from the initial depth of snow since it gets shallower with time. Here, t denotes the number of hours that have passed since the snow ceased falling.

Determine the depth of the snow on Audrey's lawn at various times by changing the value of t in the equation.

For example, if we substitute t = 1 into the equation,

S = 10 - 2(1) = 10 - 2 = 8

This indicates that 8 inches of snow would be present in Audrey's yard once the snow stopped falling in one hour. To get the depth at various times, you may similarly insert different values for t.

To know more about an equation follow

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The linear combination method gives a solution of (–4, 2) for which of these systems of linear equations? 3 x + 13 y = 14. And 6 x + 11 y = -2. 4 x + 5 y = 12. And 8 x + 3 y = -4. 5 x + 4 y = 12. And 7 x + 8 y = 12. 10 x + 3 y = 8. And 17 x + 6 y = 10.

Answers

Answer:

A. [tex]3x + 13y = 14[/tex] and [tex]6x + 11y = -2[/tex]

Step-by-step explanation:

Required

Determine which system of equation satisfy (-4,2)

To do this, we simply substitute -4 for x and 2 for y in the given functions.

A.

[tex]3x + 13y = 14[/tex] and [tex]6x + 11y = -2[/tex]

[tex]3x + 13y = 14[/tex]

[tex]3(-4) + 13(2) = 14[/tex]

[tex]-12 + 26 = 14[/tex]

[tex]14 = 14[/tex]

[tex]6x + 11y = -2[/tex]

[tex]6(-4) + 11(2) = -2[/tex]

[tex]-24 + 22 = -2[/tex]

[tex]-2 = -2[/tex]

The above shows that the given linear combination has a solution of (-4,2).

Hence, this option answers the question and there is no need to check other options

Answer: the answer is A

Step-by-step explanation:

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

5

Step-by-step explanation:

An investment that you bought for __________ and sold for __________ made a profit.
700-600
700-500
600-500
600-700

Answers

Step-by-step explanation:

600-700 is the correct answer

pls mark me as BRAINLIAST

600-700 !

explanation:
to make profit, you have to sell for a higher price than what you bought it for (:

Edgar is scuba diving 50 feet below the water. He is swimming to the surface at a rate of 3 feet per second. Write an equation to represent his depth, d, after s seconds.

Fill in the blank
d = __ s + __
(also to understand better we are doing the equation y = __ x + __ )

Answers

Answer:

I know this is late but the actual answer is d=3s+-50

Step-by-step explanation:

The reason is because he is swimming down, so yeah.

Friendship’s soccer team purchased uniforms and equipment for a total of $912. The equipment cost $612 and the uniforms cost $25 each. How many uniforms did the school purchase?

Answers

Answer:

12

Step-by-step explanation:

912 - 612 = 300

300 ÷ 25 = 12

The number of uniforms the school purchased based on the given data and equation formation will be $12.

How to form an equation?

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Let's suppose the school purchase x number of uniforms.

Total cost = equipment cost + x uniforms cost

912 = 612 + 25x

912 - 612 = 25x

25x = 300

x = 12

Hence "The number of uniforms the school purchased based on the given data and equation formation will be $12".

For more about the equation,

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convert the word three and five tenths into a fraction

Answers

Your answer would be 3 5/10. (3 and 5/10).

Apply the Pythagorean Theorem to find the distance between points A and C.

Answers

C) sqrt72 Units

C to B is 6 units
A good B is 6 units

6 squared + 6 squared = sqrt 72

True or false

It is common for
basic savings accounts
to have interest rates
up to 35%.

Answers

Answer:

TRUE

i think

Step-by-step explanation:

True

Hope this helps!!

Only right answer please I need help

Answers

the answer is 4 !!!!!!!!

Please answer and label
1=
2=
3=
4=
5=
6=
Brainliest if correct

Answers

Answer:

1 is 3/2

2 is 3/50

4 is B

5 is 8/3

6 is B

Step-by-step explanation:

Each batch of cookie mix need 0.4 cups of sugar, and each batch can make 16 cookies. If Ashley is making 4 batches of cookies, how much sugar does she need?
Can you please explain your answer pretty plz

Answers

Answer:

.16

Step-by-step explanation:

All you do is double each number by 4.

Answer:

1.6 cups of sugar

Step-by-step explanation:

1 batch=0.4 cups

So if you want 4 batches, you would have to quadruple the amount of sugar

0.4x4=1.6

Which of the following expressions is equivalent to the expression given below.

12 (-31 + 26) + 45
—————————
4

3.5

-3.75

4.2

-4.5

Answers

Answer:

wuhh

Step-by-step explanation:

The Answer: -15
I hope this helps you out

A negative correlation has a/an?
positive trend
decreasing trend
stable trend
increasing trend

Answers

A negative correlation has a decreasing trend

Answer:

decreasing trend

Does the table, graph, or equation represent a linear or nonlinear function? EMERGENCY I need help ​

Answers

Answer:

Nonlinear

Step-by-step explanation:

This is because the x^2. If there are any exponets, the equation would be considered nonlinear.

Hope this helps!

Derin is buying a new car at the price of $14,799.99. If he must pay 5% in sales tax, how much will his new car really cost him

Answers

it will cost him 15,539.99

answer correctly and i will give brainliest

Answers

Answer:

$25 per month

Step-by-step explanation:

What we know:

3 months of a gym membership costs $75.

6 months cost $150.

To find the unit rate, divided 75 by 3, or 150 by 6.

150/6 = 75/3 = 25/1 = $25 per month

How many adult tickets were sold if each adult ticket sold was $6 and each student ticket was $4.50 and 260 tickets were sold for a total of $1404?

Answers

Answer:

   Adult tickets sold:   156

Step-by-step explanation:

   Adult ticket:   x

Student ticket:  y

x + y = 260                  ===>   -6(x + y = 260)     ===>  -6x -6y = -1560

6x + 4.5y = 1404         ===>                                           6x + 4.5y = 1404

                                                                                  ________________

add the two equations to eliminate a variable:                  -1.5y = -156

divide by -1.5:                                                                              y = 104

substitution to find x:

      x + y = 260

  x + 104 = 260

            x = 156

the number of employees went from 7623 to 6824 what percent did this increase or decrease

Answers

Answer:

9.5% decrease

Step-by-step explanation:

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