–7x − 9y = –19
–3x + 2y = –14

Answers

Answer 1

Answer:

the answer is

7x+9y_19=0

the sceond one is

3x_2y_14=0


Related Questions

what is the answer too
5=6(q-5)-19

Answers

Answer:

Distribute the 6 to the terms inside the parentheses.

5=6q-30-19

Combine like terms.

5=6q-49

Add 49 to both sides.

54=6q

Divide both sides by 6.

q=9

:)

This morning, David's car had 15.55 gallons of fuel. Now, 1.8 gallons are left. How much fuel did David use?

Answers

Answer:

15,55 - 1,8= 13,75

Step-by-step explanation:

A baker had 3 1/4 pounds of apples. she used 3/4 to make an apple pie. How many pounds of apples does she have left

Answers

Answer:

2 1/2

Step-by-step explanation:

3 1/4 - 3/4 =2.5 which simplify's to 2 1/2

The number of pounds of apples that she has left will be 13/16 pounds.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

A baker had 3 ¹/₄ pounds of apples. she used 3/4 to make an apple pie.

Convert the mixed fraction number into a fraction number. Then we have

3 ¹/₄ = 13/4

The number of pounds of apples that she has left will be given as,

⇒ 13/4 - (13/4)(3/4)

⇒ 13/4 - (39/16)

⇒ (52/16) - (39/16)

⇒ (52 - 39) / 16

⇒ 13/16 pounds

The number of pounds of apples that she has left will be 13/16 pounds.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ5

A city map is placed on a coordinate grid. The post office is located
at the point A(3, 8), the library is located at the point B(15,9), and
the fire station is located at the point C(21, 9.5) What is the ratio of
the length of AC to the length of BC?

Answers

The length of a segment is the number of units on the segment.

The ratio of line segment AC to line segment BC is 3 : 1

The coordinate points are given as:

[tex]\mathbf{A = (3,8)}[/tex]

[tex]\mathbf{B = (15,9)}[/tex]

[tex]\mathbf{C = (21,9.5)}[/tex]

The length of each segment will be calculated using the following distance formula

[tex]\mathbf{d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}}[/tex]

So, we have:

[tex]\mathbf{AC = \sqrt{(3 - 21)^2 + (8 - 9.5)^2}}[/tex]

[tex]\mathbf{AC = \sqrt{326.25}}[/tex]

Also, we have:

[tex]\mathbf{BC = \sqrt{(15 - 21)^2 + (9 - 9.5)^2}}[/tex]

[tex]\mathbf{BC = \sqrt{36.25}}[/tex]

The ratio of AC to BC is represented as:

[tex]\mathbf{AC : BC = \sqrt{326.25}:\sqrt{36.25}}[/tex]

Divide through by [tex]\sqrt{36.25[/tex]

[tex]\mathbf{AC : BC = \sqrt{9} : \sqrt{1}}[/tex]

Evaluate square roots

[tex]\mathbf{AC : BC = 3 : 1}[/tex]

Hence, the ratio is 3 to 1

Read more about line segments at:

https://brainly.com/question/12294171

(x)=−3x+4, find f(-6)f(−6).

Answers

Answer:

f(-6)=22

Step-by-step explanation:

f(x)=-3x+4

F(-6)=-3(-6)+4

f(-6)=18+4

f(-6)=22

How do we call the number 4 in 345.28

Answers

Answer:

The number 4 is in the tens place

Step-by-step explanation:

Use place value to find the answer (ones, tens, hundreds, thousands, etc.)

What is 21 1/4% expressed as a fraction? 13/200 17/80 21/80 17/40

Answers

The answer is 17/80
Step by step:
Move decimal 2 to the left,
.2125
Then:

2125
____
10000
Then just simplify from there

please help i need it ill mark brainlest

Answers

where is the questions?

Step-by-step explanation:

I can help you but, there's no questions?

PLEASE HELPPPP‼️‼️‼️ILL MARK Brainlyist PLEASE!!!
Point K is a centroid of the triangle JGI. If KL = 28 cm, what is JL?

A. 42cm
B. 14 cm
C. 84cm
D. 18.7cm

Answers

Answer:

84cm

Step-by-step explanation:

I had it on my test

Karen buys 3 new shirts that cost $12.25 each. She pays $3.03 in sales tax. How much money does Karen pay in all?

Answers

Answer: 111.35

Step-by-step explanation: I’I’m pretty sure I did this right. If I Didn’t, I am so sorry. But, I times $12.25 by three times. WoWoulwhat you got me to $35.75 and then I times that by three and a got me $111.35

I hope I did this right :)

Please please help. Thank you :)) offering more than 20 points

Answers

Answer:

1. x=6

2. x=6

3. x=6

4. x=6

5. x=6

Step-by-step explanation:

Addition Property of Equality (adding 1 at both sides)Simplify (combing the 1 to both sides)Subtraction Property of Equality (subtracting 2x to both sides)Simplify (combing the -2x)Division Property of Equality (divide both sides by 2)

Triangle A and Triangle B are right triangles.
Triangle A has a height of 8 meters and a base of 6 meters.
Triangle B has a height that is one unit greater than triangle A and a base that is one unit less.
What is the measure of the hypotenuse of triangle A? Show your work.
Determine if the hypotenuse of triangle B has the same hypotenuse as triangle A. Justify your solution.

Answers

I. The measure of the hypotenuse of triangle A is equal to 10 meters.

II. The measure of the hypotenuse of triangle B is equal to 10.30 meters.

Given the following data:

Height A = 8 metersBase A = 6 meters

To determine the measure of the hypotenuse of triangle A, we would apply Pythagorean's theorem since the is a right triangle:

Mathematically, Pythagorean's theorem is given by the formula:

[tex]C^2 = A^2 + B^2\\\\C^2 = 6^2 + 8^2\\\\C^2=36+64\\\\C^2 = 64+36\\\\C^2=100\\\\C=\sqrt{100}[/tex]

Hypotenuse, C = 10 meters.

For Triangle B:

Triangle B has a height that is one (1) unit greater than triangle A:

Height B = 8 + 1 = 9 meters

Triangle B has a base that is one (1) unit less than triangle A:

Base B = 6 - 1 = 5 meters

To find the hypotenuse B:

[tex]C^2 = A^2 + B^2\\\\C^2 = 5^2 + 9^2\\\\C^2=25+81\\\\C^2=106\\\\C=\sqrt{106}[/tex]

Hypotenuse, C = 10.30 meters

From the above calculations , we can deduce that the measure of the hypotenuse of both Triangle A and Triangle B are different.

https://brainly.com/question/14930619

Midpoints
B is the midpoint of AC , find x.

Answers

B is the midpoint which means both sides are equal to each other:

5x = 3x + 4

Subtract 3x from both sides

2x = 4

Divide both sides by 2

X = 2

Given:-

[tex]\red{➤}\:[/tex][tex]\sf AB = 5x [/tex]

[tex]\red{➤}\:[/tex][tex]\sf BC = 3x+4[/tex]

[tex]\\[/tex]

To Find:-

[tex]\orange{☛}\:[/tex][tex]\sf Value \:of \:x[/tex]

[tex]\\[/tex]

Solution:-

Since B is midpoint of AC, therefore -

[tex]\\\quad\quad\quad\quad\sf AB = BC [/tex]

[tex]\begin{gathered}\\\quad\longrightarrow\quad \sf 5x = 3x+4\quad\quad ( Putting \:Value) \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\quad\longrightarrow\quad\sf 5x-3x =4 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\quad\longrightarrow\quad\sf 2x =4 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\quad\longrightarrow\quad\sf x =\frac{4}{2}\\\end{gathered} [/tex]

[tex]\begin{gathered}\\\quad\longrightarrow\quad\boxed{\sf {x=2 }}\\\end{gathered} [/tex]

If a machine that prints vinyl stickers can print 300 stickers in 5 hours, how many hours willTake to print 1,500 stickers?

Answers

Answer:

25 hours

Step-by-step explanation:

300/5 = 60

1,500/60 = 25

25 hrs

hope this helpsss :D

Someone please solve this for me

Answers

Answer:

Step-by-step explanation:

There are some property you need to know

one external angle of a triangle equals to the sum non-adjacent angles of the triangle.The sum of all interior angles is 180(deg)

According to the graph we have [tex]125^\circ=(x+2y)^\circ+90^\circ\\(x+2y)^\circ = 35^\circ[/tex]

And

[tex]125^\circ + (2x+y)^\circ = 180^\circ\\(2x+y)^\circ = 55^\circ[/tex]

So

[tex]\angle P = 35^\circ\\\angle PQC = 55^\circ[/tex]

The two lines represent the distance, over time, the two airplanes were traveling. Which plane is traveling faster? Explain how you know.

Answers

Answer:

plane b is going faster. X axis is always time, leaving Y axis to be distance. B goes up the Y axis more with less X axis. B is faster.

does multiplication come before division in pemdas?

Answers

Yes, multiplication does come before division in PEMDAS

P - PARENTHESIS
E - EXPONENT
M - MULTIPLICATION
D - DIVISION
A - ADDITION
S - SUBTRACTION

No, you are supposed to do them at the same time. You need to go in whatever order they are in from left to right.

Round 128,902 to the nearest thousand

Answers

Answer:

128, 902 to the nearest thousand is 129,000

Step-by-step explanation:

Just a cheerful teen willing to help,

wishing you a splendiferous day,

stay salty...

The answer is 129,000

.✍️(◔◡◔) hope this helps<3

Solve this pllllllllllllllllleeeeeeeeeeeeeeeeeeeease

Answers

Answer:

Picture A:

D: 540 degrees

First one is b-31,53,96 the second one is d-540

700 is 1/10
as much as

Answers

https://math.answers.com/Q/What_is_1_tenth_of_700

Answer:

70

Step-by-step explanation:

1/10 × 700

0.1 × 700

=70

f(x) = 232 – 2x + 10
2.x2
Find f(2)

Answers

Answer:

f(2)= -2

Step-by-step explanation:

according to the proper question on the photo

f(x)= -2x²-2x+10

f(2)= -2(2)²-2(2)+10

f(2)= -2(4)-4+10

f(2)= -8-4+10

f(2=-12+10

f(2)= -2

does anybody now 166 times 4

Answers

the answer to this question is 664

Answer:

664. Im pretty sure

Step-by-step explanation:


Pllls help I need it really

Answers

Answer:

45655677777765457887543

please help me with all i really need it quickly

Answers

Step-by-step explanation:

20.84

12.46

7.99

22.55

those are the answer

Answer:

1. $27.79-(25%×$27.79)=$27.79-$6.9475

                                      =$20.8425

                                      =$20.84 (to 2dp)

2. $12.85-(3%×$12.85)=$12.85-$0.3855

                                    =$12.4645

                                    =$12.46 (to 2dp)

3. $10.65-(25%×$10.65)=$10.65-$2.6625

                                      =$7.9875

                                      =$7.99 (to 2dp)

4. $34.69-(35%×$34.69)=$34.69-$12.1415

                                        =$22.5485

                                        =$22.55 (to 2dp)


Solve the quadratic equation

Answers

Answer:

Our problem is [tex]x^2-2x+6=0[/tex], but as we can see, we are unable to factor. We have to use the quadratic equation to solve.

[tex]x^2-2x+6=0[/tex]

[tex]\frac{-b+-\sqrt{b^2-4ac}}{2a}[/tex]

Positive Quadratic Formula:

[tex]\frac{-(-2)+\sqrt{(-2)^2-4(1)(6)}}{2(1)}[/tex]

[tex]=\frac{2+\sqrt{4-24}}{2}\\=1+\frac{\sqrt{-20}}{2}[/tex]

Negative Quadratic Formula:

[tex]\frac{-(-2)-\sqrt{(-2)^2-4(1)(6)}}{2(1)}[/tex]

[tex]=\frac{2-\sqrt{4-24}}{2}\\=1-\frac{\sqrt{-20}}{2}[/tex]

Since both of our answers are the square root of a negative number, we know that the quadratic equation has no real solution.

*We could have also used the Discriminant Test to determine whether the quadratic equation has real roots or not. However, for our means, the quadratic equation seems enough.

Answer:

D. No real Solution

Step-by-step explanation:

Hello!

Let's use the quadratic formula: [tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]

In our equation:

a = 1b = -2c = 6

This comes from the standard form of a quadratic: [tex]ax^2 + bx + c[/tex]

Now, solve:

[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex][tex]x = \frac{-(-2) \pm \sqrt{(-2)^2 - 4(1)(6)}}{2(1)}[/tex][tex]x = \frac{2 \pm \sqrt{4 -24}}{2}[/tex][tex]x = \frac{2 \pm\sqrt{-20}}{2}[/tex][tex]x = \frac{2 \pm 2\sqrt{-5}}{2}[/tex][tex]x = 1 \pm \sqrt{-5[/tex]

Since the radicand (-5) is negative, there are no real solutions. The correct answer is Option D.

(2x^2-4xy+2y)(3x-4)

help solve! please show steps.

Answers

9514 1404 393

Answer:

  S

Step-by-step explanation:

The distributive property is used for this purpose. I find it easier to distribute the shorter factor.

  [tex](2x^2-4xy+2y^2)(3x-4)\\\\=(3x)(2x^2-4xy+2y^2)-(4)(2x^2-4xy+2y^2)\\\\=6x^3-12x^2y+6xy^2-8x^2+16xy-8y^2\quad\text{matches choice S)}[/tex]

Giving 20 brainly points

Answers

Answer:

y=8x+1

y=7x+2

y=9x+3

Step-by-step explanation:

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. What is the resulting expression?

(4x2 + 3)(x2 – 5)
(4x2 – 3)(x2 – 5)
(4x2 – 5)(x2 + 3)
(4x2 + 5)(x2 – 3)

Answers

Answer:

(4x2-3)(x2-5)

Step-by-step explanation:

(4x4-20x2)-(3x2+15)

4x2(x2-5)-3(x2-5)

(4x2-3)(x2-5)

The factorized expression of the polynomial is (4x^2- 3)(x^2 -5)

What are polynomials?

Polynomials are expressions that have more than one term

The expression is given as:

[tex]4x^4 - 20x^2 - 3x^2 + 15[/tex]

Factorize the expression

[tex]4x^2(x^2 - 5)- 3(x^2 -5)[/tex]

Factor out x^2 - 5

[tex](4x^2- 3)(x^2 -5)[/tex]

Hence, the expressions when multiplied that give the polynomial are (4x^2- 3) and (x^2 -5)

Read more about factorization at:

https://brainly.com/question/11579257

Help please and thank you

Answers

Answer:

B) 60

Step-by-step explanation:

180-46= 134

134-74= 60

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer is slope zero

Answer:

The answer is :B because it is a negative impact

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