Solve, using linear combination.

p + q = 0
q – p = 8

Which ordered pair, (p, q), is the solution to the system of equations?


(4, –4)


(4, –4)


(10, 1)


(−4, 4)

Answers

Answer 1

Answer:

(4' -4)

Step-by-step explanation:

make p subject of the formula in the first equation substitute the value in the second equation to determine q and replace q in first equation

Answer 2

Answer:the answer is (4, -4)

Step-by-step explanation:took the test and got it right


Related Questions

Find the mean of the following data set.
42, 45, 58, 63

1.42
2.47
3.52

Answers

Answer:

52

Step-by-step explanation:

[tex]\frac{42+45+58+63}{4}=52[/tex]

pls pls pls help me I will give brainlist pls

Choose Yes if the capital letters are used correctly.

Choose No if capital letters are used incorrectly.



Who will win the election for President in november?

Group of answer choices

Yes

No





Timmy Johnson used to be a police officer. Now he is working for the company Bellsouth.

Group of answer choices

no

yes





John anounced on monday that he wants to be the new mayor of Dallas. He will have to campaign hard because the mayor we have now has been in office for many years.

Group of answer choices

yes

no





My father said he would vote for Tom. I believe the only reason that he said this is because Tom is his brother. He really isn't qualified to be the mayor.

Group of answer choices

no

yes



My family went on a long hike on the appalachian trail. We thought we would be finished in s couple of hours, however my sister sprained her ankle and we had to take it slow.

Group of answer choices

yes

no



There will be a voting booth set up at Northside elementary.

Group of answer choices

yes

no





Every Spring they put out new flower seeds so the Park is beautiful.

Group of answer choices

no

yes





I hope our new mayor will do something about all the trash on the sides of the roadways. When I am traveling down Main Street, I am in shock at what I see. I just wish people would care more about this and would help to keep our roads clean of trash!

Group of answer choices

no

yes





The River is full of chemicals that are very harmful.

Group of answer choices

yes

no





I'm glad our drinking water doesn't come from the Raven River. Some people say that this river is the dirtiest river east of the Mississippi.

Group of answer choices

yes

no





In later Summer, the sunflowers are gorgeous.

Group of answer choices

yes

no





After examining our dog, the Veterinarian said, "He looks healthy and strong to me." I grabbed spot and gave him a mighty hug. my mom was happy too. We thought for sure he was going to have to stay overnight.

Group of answer choices

yes

no





"Watch out!" yelled Monica.

Group of answer choices

no

yes





"When are we leaving?" Joe asked. Mom replied, "As soon as we can load up the car, Joe."

Group of answer choices

yes

no





Kyle practiced his pitching all Winter. He wanted to make the team with his best friend, Tom.

Group of answer choices

no

yes

Answers

Answer:

NoyesyesyesNo.yesNoyesNo.yesNoNoYesYesNo

These are the answers according to serials.

Show you work in sketch.

5(3 - x)

Answers

Answer:

sketched it out for ya

Step-by-step explanation:

Find the surface area of the rectangular prism.
8 mi
2 mi
1 mi

Answers

Answer:

A = 2 ( wl + hl + hw ) = 2 · ( 2 · 8 + 1 · 8 + 1 · 2) = 52

Step-by-step explanation:

Find the cubes of the following numbers: a) 21 b) 55 c) 302

Answers

Answer:

21 cubed is 9261

55 cubed 166375

302 cubed 27543608

hope this helps

have a good day :)

Step-by-step explanation:

A specific laptop loses half of its value every six months. If the original cost was $1, 100 and the value of the laptop is now $68.75, how many years have you owned the laptop​​

Answers

Answer:

2 years! :)

Step-by-step explanation:

A math teacher noticed that 70% of seventh graders completed an extra credit assignment. About how many of 130 seventh graders would complete the extra credit assignment?

Answers

Answer:

91 students

Step-by-step explanation:

130 x 70% =91

Answer:

91 students

Step-by-step explanation:

so we are looking for 70% of 130

so we do the following:

130*.70

91 students

if you can help me youre a legend :)

Answers

Answer:

A. 9

B. 7

Step-by-step explanation:

A. 11 - 2 = 9

B. 1 + 6 = 7

A)11-2=9
B)6+1=7
I think this is the answ

elliot is going to save $15 per week ​

Answers

Answer:

B. 15-W

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

A.)

Step-by-step explanation:

because if elliot gets 15$ each week the it would be a

What are the coordinates of the end point? Please help

Answers

Answer:

1, -16

Step-by-step explanation:

-5+6=1

-3-13=-16

(1, -16)

Which arithmetic sequence has a first term equal to 47 and a common difference of -18?

a.{-18, -65, -112, -159, …}

b.{47, 29, 11, -7, …}

c.{-18, 29, 76, 123, …}

d.{47, 65, 83, 101, …}

Answers

Answer:

b

Step-by-step explanation:

There are 2 sequences with a₁ = 47, b and d

The common difference of both is

(b)

d = a₂ - a1 = 29 - 47 = - 18

(d)

d = a₂ - a₁ = 65 - 47 = 18

The the sequence with first term 45 and common difference - 18 is b

The required sequence which has a first term equal to 47 and a common difference of -18 is {47, 29, 11, -7, …}. Option B is correct.

What is arithmetic progression?

Arithmetic progression is the series of numbers that have common differences between adjacent values

What is geometric progression?

Geometric progression is a sequence of series whose ratio with adjacent values remains the same.

Here,
An arithmetic sequence has a first term equal to 47 and a common difference of -18,
a = 47
d = -18

The sequence formed given as,
⇒ a, a + d, a + 2d, a + 3d
⇒ 47, 47 - 18, 47 + 2(-18), 47 + 3(-18)
⇒ 47 , 29, 11, -7 . . . . .

Thus, the above sequence matches the sequence given in option b.

Learn more about arithmetic progression here: https://brainly.com/question/20334860
#SPJ2

Identify Slope and Y intercept for the equation X=4 M=B=

Answers

Undefined and Undefined

Since the equation is x = 4, there is no y-intercept as x will never equal 0.

Additionally, since the equation is x = 4, there is no change in x value and as such the slope can not be determined.

Last night Danielle had a birthday party. 1/3 of the birthday cake was leftover. She wanted to share the leftover birthday cake with 44 friends the next day. How much of the birthday cake would each get if they shared it equally?

Answers

Answer:

1/132

Step-by-step explanation:

1/3 ÷ 44 would be solved by multiplying 1/3 and 1/44 which is 1/132

Convert 124°F to Celsius . .
ω

Answers

Answer:

answer is C

Step-by-step explanation:

Answer: 50.6

Step-by-step explanation:

Though I am pretty sure it is 51.1 degrees C 50.6 is the closest option to that.

Have A Wonderful rest of your day!! :)

Solve the equation for x .........

Answers

Answer:

-30

Step-by-step explanation:

-x/10 = 3

-x = 3 * 10 (transposing)

-x = 30

x = -30

If Timmy has 38 apples, and Tina’s favorite food is mango, how were the stars aligned in the sky on March 16th, 1876?

Answers

Answer:

The real question is why do the people in math problems have an unnecessary amount of objects? also the answer is capricorn

Step-by-step explanation:

GEOMETRY HELP PLEASE ASAP!!
1

Answers

Hi you just have to multiply the top and side of each shape then add them all up so the final answer is 782 square inches

Me ajudem por favor




PS: Explicar resposta

Answers

Answer:

B

Step-by-step explanation:

√16/25 = 4/5 = 0.8-> (4/5 x 4/5 = 16/25)

(2/5)^3 = 8/125  = 0.064

-(-0.3)^3 = 0.027 (an odd exponent mantains the same sign of the number and minus x minus = +)

-√169 = -13

-13 is a negative number so it is surely the smallest

2 is minor than 6 so we have that 0.027 is minor than 0.064

8 is major than 0, so 0.8 is the greatest number

we have

-√169 ; -(-0.3)^3 ; (2/5)^3 ; √16/25

Chicos estoy en un aprieto ayudarme pls Sabiendo que una falda es 5 € más cara que una blusa y que si compro 6 faldas y 4 blusas pago 480 €, ¿cuánto vale la falda?

Answers

Answer:

El precio de la falda es 50 €.

Step-by-step explanation:

Lo que sabemos:

[tex] F = 5 + B [/tex]   (1)

En donde F es por falda y B por blusa.

Si compras 6 faldas y 4 blusas y pagas 480 €:

[tex] 6F + 4B = 480 [/tex]  (2)

Entonces, al introducir la ecuación (1) en (2) podemos hallar el precio de cada falda.

[tex] 6F + 4B = 480 [/tex]

[tex]6(5 + B) + 4B = 480[/tex]

[tex] 10B = 480 - 30 [/tex]

[tex]B = \frac{450}{10} = 45[/tex]  

Finalmente, el precio de la falda se puede encontar con la ecuación (1):

[tex]F = 5 + 45 = 50[/tex]

Por lo tanto, el precio de la falda es 50 €.  

Espero que te sea de utilidad!      

A bookstore costs $75 a day to keep open, and spends $10 for each book it
sells. The store charges $15 for each book it sells. If n represents the number
of books sold, which equation represents the revenue function for this
bookstore?
A. r= 15n
B. r= 25n
C. r= 10n
D. r= 75n

Answers

Answer: A. r= 15n

Step-by-step explanation: took the quiz.

The solution is, The cost function of this bookstore is 10n + 75.

What is cost function?

A cost function is a formula used to predict the cost that will be experienced at a certain activity level.

here, we have,

According to the given problem,

Cost to open bookstore for a day - $75

Price for selling each book = 10

Considering number of books to be n,

Total cost for selling each book = $(10×n)

Therefore total cost price =  $( 10n + 75)

Hence, we can conclude that the total cost function of this bookstore is represented by equation 10n + 75

Learn more about cost function here:

brainly.com/question/23313575

#SPJ5

please help (question is in the attachment) :(

Answers

Answer:

The answer is D

Step-by-step explanation:

Because both when we multiply we will get the same answer

Answer:

It would be B. 8x3/5

Step-by-step explanation:

So when multiplying fractions, you multiply the denominator of one fraction by the denominator of the other. You then multiply the numerator of one fraction by the numerator of the other.

The 8, can be turned into fraction form by thinking of it as 8/1 x 3/5.

And thinking about how we do denominator x denominator, numerator x numerator, it will look like:

[tex]\frac{8*3}{1*5}[/tex]

There is one more thing we need to simplfy before we will get our answer.

When you multiply a number by 1, what do you get? The same exact number as before.

Sp tecnically, 1*5 would just be 5:

[tex]\frac{8*3}{5}[/tex]

This looks like answer b!

Hope this helps!

What is the measure of x.

Answers

Answer:

x=140°

Step-by-step explanation:

the 40° angle and x are supplementary, so:

x=180°-40°

x=140°

the operation * is defined on the set R of all real number by 2a +3b ÷ a +b evaluate 2*(3*4)​

Answers

9514 1404 393

Answer:

  2*(3*4) = 41/16

Step-by-step explanation:

Your function is not carefully defined.* We assume you intend ...

  f(a, b) = (2a +3b)/(a +b)

and you want to find ...

  f(2, f(3, 4))

__

Filling in the values and doing the arithmetic, we have ...

  [tex]2*(3*4)=\dfrac{2\cdot2+3\cdot\dfrac{2\cdot3+3\cdot4}{3+4}}{2+\dfrac{2\cdot3+3\cdot4}{3+4}}=\dfrac{4+3\cdot\dfrac{18}{7}}{2+\dfrac{18}{7}}\\\\=\dfrac{4\cdot7+3\cdot18}{2\cdot7+18}=\dfrac{82}{32}=\boxed{\dfrac{41}{16}}[/tex]

_____

* We have assumed that the definition is describing the result of using the infix operator * in an expression of the form a*b. We have also assumed that your use of the ÷ symbol means ...

  a*b ≡ (2a+3b)/(a+b)

as opposed to the strict Order of Operations interpretation ...

  a*b ≡ 2a + (3b/a) +b

Is there an error in this problem explain pls do all

Answers

Answer:

C

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

you did it wrong

this is the one thats not wrong:

7(6+4(−10+9))

=(7)(6+4(−10+9))

=(7)(6)+(7)(4(−10+9))

=42−28

=14

69. A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students attended the opening midnight showing of the latest Harry Potter movie. She surveys 84 of her students and finds that 11 of them attended the midnight showing. The Type I error is to conclude that the percent of EVC students who attended is ________. a. at least 20%, when in fact, it is less than 20%. b. 20%, when in fact, it is 20%. c. less than 20%, when in fact, it is 20%. d. less than 20%, when in fact, it is less than 20%

Answers

Answer:

a. at least 20%, when in fact, it is less than 20%.

Step-by-step explanation:

Type 1 Error is to reject null hypothesis when it is actually true.

Here the null hypothesis is fewer than 20% of Evergreen Valley College (EVC) students attended the show.

In mathematics fewer than 20% means less than  20%.

So the null hypothesis is that less than 20 % students attended the show.

We have to reject this hypothesis .

We can reject this hypothesis when we assume that the % is greater than or equal to 20 %

At least  20% means greater than or equal to 20%.

So the best choice is option a.

at least 20%, when in fact, it is less than 20%.

The movement of moving particles is described in the equation r=ht22 −2vt−2c. Solve the equation for v.

Pls help

Answers

Answer:

[tex]v=\dfrac{r-ht^2+2c}{-2t}[/tex]

Step-by-step explanation:

The given equation is :

[tex]r=ht^2 -2vt-2c[/tex]

We need to solve the above equation for v.

Subtract ht² from both sides.

r-ht²= ht²-2vt-2c-ht²

r-ht² = -2vt-2c

Adding 2c both sides,

r-ht² +2c= -2vt-2c+2c

r-ht² +2c = -2vt

Dividing both sides by (-2t)

[tex]v=\dfrac{r-ht^2+2c}{-2t}[/tex]

So, the value of v is equal to [tex]\dfrac{r-ht^2+2c}{-2t}[/tex].

Please help me with this! I will give brainlist!

Answers

Answer:

Its the 2nd Dot

Step-by-step explanation:

A circular plate had a diameter of 10 cm. The rectangular table it sits on
has dimensions of 5000mm x 3600mm. How many plates can fit on this
table? What is the percentage they cover?
Please help me it’s 10 points also this is my first time on this app

Answers

Answer:

2292.9936

Step-by-step explanation:

circular plate had a diameter of 10 cm. The rectangular table it sits on

has dimensions of 5000mm x 3600mm. How many plates can fit on this

table? What is the percentage they cover?

Please help me it’s 10 points also this is my first time on this app

Given :

Dimension of table :

5000 mm * 3600 mm

Area of rectangle = Length * width

Area of table = 5000 * 3600

Area of table = 18000000 mm²

Recall :

1 cm = 10 mm

Diameter of circular plate = 10cm

Converting to mm :

10 * 10 = 100 mm

Area = diameter/ 2 = 100 mm / 2 = 50 mm

Area of a circle = πr²

Area of circular plate = 3.14 * 50² = 7850 mm²

Number of plates = 18000000 / 7850

= 2292.9936 plates

About 2293 plates

Find the volume of the sphere. Round your answer to the nearest tenth.
Use 3.14 for it.
16 cm
The volume of the sphere is about|
cm?

Answers

12 cm yo the approximate square in each individual variable

From the set {2, 6, 42}, use substitution to determine which value of x makes the equation true.

6(x + 40) = 252
A.
2
B.
none of these
C.
6
D.
42

Answers

The answer to your question is letter A.2
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