BRAINLIEST!

find x and y
7x + y =-16 and -7x + y = -16​

Answers

Answer 1

Answer:

x = 0, y= -16

Step-by-step explanation:

Okay, we can use elimination to do this. Add the two equations together to get rid of one of the variables. 7x and -7x cancel each other out, so we are left with y+y= -32. If y+y is -32, then y= -16. Let's plug that back one of the equations. I'll choose the first equation. 7x +(-16) = -16. We can simplify that to 7x - 16= -16. Okay, we add 16 to both sides which gets us 7x=0. From this, we can infer that x=0 because 0x7=0. Now we have the answer, x=0, and y= -16. I hope this helps!


Related Questions

Drag and drop the answer into the box to identify each function as linear, exponential, or neither.

Answers

Answer:

the first is linear and the second is exponential

Answer:

Linear and Neither

Step-by-step explanation:

Got the answer from the test because I got it wrong and it said this was the right answer.

Help me out guys plssss<3 I’ll give u a star

Answers

Answer:

The 3rd one is the answer

Step-by-step explanation:

For it to be a function, the x values all have to be different. For the 3rd one, -3 is repeated. Therefore it is the answer.

There were 640 gallons of water in a 1,600-gallon pool. Water is being pumped into the pool at a rate of 320 gallons per hour.

If t stands for hours and the pool is being filled using the equation: 1600=320t+640, how many hours will it take to fill the pool?

Answers

Answer:

4

Step-by-step explanation:

do 320 +320 untill you get to 1,600  

PLS HELP ME!!!!! IT IS TIMED

Answers

Answer:

C. 13

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

CAN SOMEONE HELP ME PLEASE

Answers

No I can not ask nicer

Estimate 5,860÷2.1≈
i really need help on it.

Answers

Answer: it 2790

Step-by-step explanation:

The value of 5,860÷2.1 is 2790.

What is division?

In easy phrases, the division may be described because of the splitting of a massive institution into smaller companies such that every institution may have the same number of items. it's far an operation used for identical grouping and the same sharing in math.

What are the terminologies used in the division?

dividend, divisor, quotient remainder.

Learn more about division here: https://brainly.com/question/25289437

#SPJ2

If 28 strawberries make 4 smoothies how many smoothies make 70 strawberries

Answers

28 ......> 4

70........> x

28x=4(70)

28x=280

X=10

Answer:

i think 10 im not sure dont go for my answer. because i did 70÷7=10 because 28÷4=7

Find the first five terms of the following sequence, not including the oth term:
t(n) = 25+ 8n

Answers

Answer:e

B

Step-by-step explanation:

Eb

Which equation is shown in the graph?

Answers

the answer is “d” “y=-2x+3”
I think it is a. y=-2x+3

Ling earns $108 for working 9 hours. Rachel earns $77 for working 7 hours. Ruben earns $92 for working 8 hours. Patrick earns $115 for working 10 hours. Who has the highest hourly wage? A. Ling B. Rachel C. Ruben D. Patrick

Answers

Answer:

A. Ling

Step-by-step explanation:

we want to find the hourly earning

Ling earns $108 for working 9 hours.

hourly earnings is

108/9=$12 per hour

Rachel earns $77 for working 7 hours.

hourly earnings is

77/7=$11 per hour

Ruben earns $92 for working 8 hours.

hourly earnings is

92/8=$11.5 per hour

Patrick earns $115 for working 10 hours.

hourly earnings is

115/10=$11.5 per hour

PLEASE HELP ME ASAP!!​

Answers

Answer:

it would be (1,-3) because those point are in the shaded region. therefore it is a solution

Step-by-step explanation:

Answer:

(1,-3) is right

Step-by-step explanation:

Need help plsss
Question is below

Answers

Answer:

Step-by-step ex

its 0.2

A business had a profit of $4,312.31 in one month. The next month, the business had a loss of
$1,025.19. What was the total profit for these two months?

Answers

Answer:

3287 12

Step-by-step explanation:

subtract the second number from the first number

The total profit for these two months is $3287.12

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value. Unitary method is a technique by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit. It is a method that we use for most of the calculations in math.

Given;

Profit of business in first month= $4,312.31

Loss of business in first month= $1,025.19

Total profit= Profit - loss

                =4312.31-1025.19

                =3287.12

So, the profit made will be $3287.12

Learn more about the profit and loss please visit the link given below;

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Sure blame the answer

Answers

Option 3 I’m pretty sure

I’ll mark you brainlist I’ll mark you brainlist

Answers

Answer:

-5

Step-by-step explanation:

[tex]f(x) = - 5 \\ \\ plug \: x = - 4 \\ \\ f( - 4) = - 5[/tex]

Since it is constant function so the value will remain unchanged.

AYOOOOOO can someone help pls

Answers

Answer:

B

Step-by-step explanation:

look at the arrow on answer B it hits 1 on x axis and 6 on y axis. do the math 6x10=60


Original price: $70; Markup: 15%. What is theretail price?
If you answer I will give you brain-lest :)

Answers

Answer:

80.50

Step-by-step explanation:

profit=$10.50

i would like a brailiest if you dont mind

Answer:

If it's percents, the answer is 10.5

Step-by-step explanation:

what is the answer to this question some one please help me (7−b)+(3b+2)

Answers

Answer:2b+9

Step-by-step explanation:

2b+9. first rearrange. then combine like terms

what is the aswer need asap

Answers

Hello,

The correct answer is 18.
Hope this helps!! Let me know if you want me to justify my answer.
Brainliest?

Please help if your skilled at math and evaluating functions because I’m not PLZ HELP!!!!

Answers

The answer is D
Hope this helped :)

PLEASE HELP ME ASAP IMDOING FINALS

Answers

The answer is A: 4/3=DE/9

4 is corresponding to line DE
3 is corresponding to 9

Ahhhh- i wasn’t paying attention this day- please help-

Answers

Answer:

I think its 66 but i dont know. i took the test and had the same question but teachers are different

Step-by-step explanation:

Answer:

33 deg

Step-by-step explanation:

Since <POQ is a right angle, lines MQ and PO are perpendicular. That makes <PON a right angle with measure 90 deg.

m<MOP + m<MON = m<PON

3x - 3 + 4x + 9 = 90

7x + 6 = 90

7x = 84

x = 12

m<MOP = 3x - 3 = 3(12) - 3 = 36 - 3 = 33

m<MOP = 33

HURRRYYYYYYY PLEASEEEEEEEE

Answers

a it would be a aaaaaaaa

A number squared increased by 5 is 41

Answers

I believe the answer is 6.

Identify The domain of the rational function, g(x)= 1/x+3
A (-∞, ∞)
B (-∞, 3)U(3, ∞)
C (-∞, -3]U[-3, ∞)
D (-∞, -3)U(-3, ∞)

Answers

Answer:

The domain is (-∞ , -3) ∪ (-3, ∞) D

Step-by-step explanation:

The domain of the rational fraction is the values of x which make the fraction defined. That means the domain does not contain the values of x which make the denominator equal to 0.

∵ g(x) = [tex]\frac{1}{x+3}[/tex]

The denominator = x + 3

→ Equate the denominator by 0

∵ x + 3 = 0

→ Subtract 3 from both sides

∴ x + 3 - 3 = 0 - 3

x = -3

→ That means the domain can not have -3 because it makes the denominator

   equal to 0

∴ The domain is all values of real numbers except x = -3

∴ The domain = {x : x ∈ R, x ≠ -3}

The domain = (-∞ , -3) ∪ (-3, ∞)

What is the image of (−5,9) after a reflection over the y-axis?

Answers

Answer:

(5, 9 )

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

(- 5, 9 ) → (5, 9 )

PLEASE HELPPP
What is the side length if the area of the square is 121 cm??
А
121 cm
B.
11 cm
с
12 cm
D
13 cm

Answers

Answer:

B: 11

Step-by-step explanation:

121 is the area. Since a square is a shape with all even sides you need to find one number that multiplies by itself to get 121. 11x11=121

B: 11

Zoe needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 6 hours and charged her $121 for parts. The total was $571. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.

Answers

Answer:

571 = 121 + 6x

Step-by-step explanation:

help I need to know how to do it step by step asap ​

Answers

Answer:

y=1/4x+3

Step-by-step explanation:

The of an equation is formed by all the points in e plane that makes it true

Answers

Answer:

Graph

Step-by-step explanation:

Answer:

can u inlcieh a pic

Step-by-step explanation:

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