What are the three methods to solve a system of linear equations?

Answers

Answer 1
the graphing method, the substitution method, and the elimination method

Related Questions

Tres y cuatro quintas partes de un numero es 36.

Answers

Answer:

136.8

Step-by-step explanation:

The answer is 136.8 becuase 3 4/5 of 36 is 136.8

P.S Can I have brainliest?

Use the sketch tool to indicate what Edwin is describing as the parabola's "turning point."

Answers

Answer:

The sketch tool to indicate what Edwin is describing as the parabola's "turning point'' is described below in details.

Step-by-step explanation:

We can see in graph that it intersect X axis and it is open upward it means turning point is below X axis, we can find turning point by find maximum value of Y If open downward and minimum value, if open upward here we can find that minimum point is (3, -5). also you can draw axis of symmetry parabola and finds its intersection with turning point can also be named vertex of parabola.

Which transformation will carry a regular octagon onto itself?

Answers

Answer:

you have to move it to an adjacent side. hope this helped have a nice day:)

Brainliest +thanks
1/3z-2=0 write in statement​

Answers

Answer:

1 is divided by 3z with difference 2

help. answer is not D

Answers

Answer:

It would be C or B

Step-by-step explanation:

can't be A because A is 0 and there is no way you could be able to draw 0 lines so it would most likely be C

Solve for x: 3x − 2 > 5x + 10. (5 points)
1) x > 6

2) x −6

Answers

Answer:

[tex]x<-6[/tex]

Step-by-step explanation:

[tex]3x-2>5x+10[/tex]

Add 2 to both sides

[tex]3x-2+2>5x+10+2[/tex]

Simplify

[tex]3x>5x+12[/tex]

Subtract [tex]5x[/tex] from both sides

[tex]3x-5x>5x+12-5x[/tex]

Simplify

[tex]-2x>12[/tex]

Multiply both sides by [tex]-1[/tex] (reverse the inequality)

[tex](-2x)(-1)<12(-1)[/tex]

Simplify

[tex]2x<-12[/tex]

Divide both sides by [tex]2[/tex]

[tex]\frac{2x}{2} <\frac{-12}{2}[/tex]

Divide the numbers: [tex]\frac{2}{2} =1[/tex]

[tex]=x[/tex]

Divide the numbers: [tex]\frac{-12}{2}[/tex]

Apply fraction rule: [tex]\frac{-a}{b} =-\frac{a}{b}[/tex]

[tex]=\frac{12}{2}[/tex]

Divide the numbers: [tex]\frac{12}{2} =6[/tex]

[tex]=-6[/tex]

[tex]x<-6[/tex]

Answer:

x < -6

Step-by-step explanation:

I just took the test. When you are dividing by a negative variable, flip the sign.

The expression ( x − 12 ) is a factor of x 2 + p x − 48 . What is the value of p ?

Answers

Answer:

p = -8

Step-by-step explanation:

Since, (x - 12) is a factor, then;

x - 12 = 0

x = 12

substitute the value of x in the equation

[tex]x^{2}[/tex] + px - 48 = 0

[tex](12)^{2}[/tex]  + 12p - 48 = 0

144 + 12p -48

12p = -144 + 48

12p = -96

p = -8

So that,

[tex]x^{2}[/tex] +-8x - 48 = 0

[tex]x^{2}[/tex] -12x + 4X- 48 = 0

([tex]x^{2}[/tex] -12x) + (4X- 48)

X(X - 12) + 4(X - 12)

(X - 12) (X + 4)

Therefore, p = -8 and (X - 12) (X + 4) are factors of the equation.

Liam babysat for 3 1/2 hours and made $31.50. How much money does he make per hour?

Answers

Answer:

$9 per hour

Step-by-step explanation:

31.50/3.5 = 3150/350 = 630/70 = 63/7 = 9

Hope this helps!      :3

plz mark as brainliest!

How many pounds are in 3000 ounces?

Answers

Answer:

187.5 pounds are in 3000 ounces

Step-by-step explanation:

The answer will be 187.5 pounds

Farell has a gift card with a 45 balance he bought some bags of chips that cost 2.50 each after his perchase his gift card balance was 32.50 write and solve the equation to find how how many bags of chips x he bought

Answers

Answer:

He bought 5 bags of chips

Step-by-step explanation:

Here, we want to calculate the number of bags of chips bought

The amount used on the balance is;

45-32.5 = 12.5

Let the number of chips bought be n

Since each chip cost 2.5 each;

The amount of chips bought will be 2.5 * n = 2.5n

This is same as 12.5

Thus;

2.5n = 12.5

n = 12.5/2.5

n = 5

a boat used 1/24 of a gallon of gas to drive 1/3 of a mile.At this rate how many miles can the boat go using 1 gallon of gas.

Answers

The answer is:

8 miles

I have 8 questions witch means 80 points answer correctly!

Answers

Answer :

[tex] \Large \pink{\tt \dfrac{35}{36}}[/tex]

Solution :

[tex] \tt \dfrac{3}{4} + \dfrac{2}{9}[/tex]

By taking LCM = 4 × 9 = 36

[tex] \tt = \dfrac{3 \times 9}{4 \times 9} + \dfrac{2 \times 4}{9 \times 4}[/tex]

[tex] \tt = \dfrac{27}{36} + \dfrac{8}{36}[/tex]

[tex] \tt = \dfrac{27 + 8}{36}[/tex]

[tex] \tt = \dfrac{35}{36}[/tex]

[tex] \pink{\tt \therefore \: Answer \: is \: \dfrac{35}{36}}[/tex]

Victoria created the scatterplot below based on the data in the table for the ages and heights of some teachers in her school. Teacher Age vs. Height Teacher Age Height (in.) 1 36 62 2 28 70 3 50 60 4 44 72 5 58 68 6 24 65 A graph titled Teacher Age versus height has age on the x-axis and height (inches) on the y-axis. Points are at (22, 66), (28, 70), (35, 62), (42, 72), (60, 50) and (59, 69). She wants to see if a teacher’s height depends on his or her age. What did she do wrong when she created the scatterplot? She mixed up the independent and dependent variables. She labeled the x-axis of the scatterplot “Age” when she should have labeled it “Teacher.” She plotted the point (36, 62) when she shouldn’t have. She mixed up the x- and y-coordinates of the point representing teacher 3.

Answers

Answer:

a

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

I took the test and got 100%.

Y=-2/5x-4 find slope and y intercept

Answers

Answer:

slope= -2/5

y intercept is (0,-4)

Step-by-step explanation:

plz help it’s the pythagorean theorem

Answers

36 bc IK jansunavaihabsuz

Between 1998 and 2018, inflation for prices of goods and services has been about 51%. Suppose a salon charged $18 for a basic haircut in 1998 and has been raising prices by a steady percentage each year to keep up with inflation.

What is the price of a haircut at the salon in 2008? Explain or show your reasoning.

In 2003, the salon charged $19.95 for a basic haircut. Find the cost of the basic haircut in 2013. Explain your reasoning.

Answers

9514 1404 393

Answer:

$22.12$24.51

Step-by-step explanation:

For some growth factor f each year, the growth factor over 20 years is given as ...

  f^20 = 1 +0.51 = 1.51

Then the growth factor in 10 years is ...

  f^10 = (f^20)^(1/2) = √1.51 ≈ 1.22882

__

a) In the 10 years between 1998 and 2008, the price of a basic haircut would rise to ...

  $18 × 1.22882 ≈ $22.12 . . . price in 2008

__

b) In the 10 years between 2003 and 2013, the price of a basic haircut would rise to ...

  $19.95 × 1.22882 ≈ $24.51 . . . price in 2013

How is speed similar to solving for time?

Answers

To get the speed of something you would have to sole for s=d/t (speed equals distance over time)

I’ll love you forever if you help me with this ASAP PLEASE

Answers

Answer:

y = 4

or (0, 4)

Step-by-step explanation:

intersecting the y-axis is basically when x is equal to 0.

1.5(0) +4.5y = 18

y = 4

So your y-intersect is (0, 4) and thats when it intersects the y-axis.

y= 4 Hope it helps! <3

Linear Review: Billy Bob recently purchased solar panels for his home. After 5 months he still owed 2850. He makes a $30 payment each month towards his loan. Build a model. Write an explanation for slope and y-intercept. How many months will it take Billy Bob to finish making payments.

Answers

Answer:

Step-by-step explanation:

B) The first step is to calculate the monthly payment using a present value (PV) of $59,000 , monthly interest rate of 7.60 /12 = 0.633333 %, and 60 periods, which = $1185.04 ; the second step is to add $50 to this monthly payment giving the new monthly payment of $1235.04 ; the last step is to calculate the time required to pay off the loan = 57.0740 months.

I'll give 15 points for this question ​

Answers

Answer:

4. Is 6 eggs

5. Is 7 eggs

Step-by-step explanation:

194 people must be split into 2 equal groups. how many people in eachgroup

fast if possible

Answers

194/2

So there is 97 people in each group

For what value of k is the expression [tex]x^{4}[/tex]+k[tex]x^{2}[/tex]+49 a perfect square?


a. 7

b. 14

c. 49

d. 98

Answers

Answer:

k = 14

Step-by-step explanation:

Given:

x⁴ + kx² + 49

Find:

Value of k

Computation:

x⁴ + kx² + 49

(x²)² + (k)(x²) + 7²

we know that;

a² + 2ab + b²

On compare;

k = 2 x 7

k = 14

Please help If you can

Answers

Answer:

B is the answer!!!!!!!!!

answer both and I will give brainiest and 50 points.
Describe the location of the point in coordinate space.
(–7, 9, –2)
From the origin, move 7 units back, 9 units left, and 2 units down.
From the origin, move 7 units back, 9 units right, and 2 units up.
From the origin, move 7 units forward, 9 units right, and 2 units down.
From the origin, move 7 units back, 9 units right, and 2 units down.

Describe the location of the point in coordinate space.
(–2, 8, –4)
From the origin, move 2 units back, 8 units left, and 4 units down.
From the origin, move 2 units forward, 8 units right, and 4 units down.
From the origin, move 2 units back, 8 units right, and 4 units up.
From the origin, move 2 units back, 8 units right, and 4 units down.

Answers

Answer:

1. From the origin, move 7 units back, 9 units right, and 2 units down.

2. From the origin, move 2 units back, 8 units right, and 4 units down.

Hope this helps :)

56 = ?×?×?×? i want to know what number ecual yo 56 by multiplying it 4 times to get your answer

Answers

Answer:

4 * 14 = 56

Step-by-step explanation:

56/2 = 28

28/2 = 14

14/2 = 7

7/7 = 1

56 = 2 * 2 * 2 * 7

56 = (2 * 2) * (2 * 7)

56 = 4 * 14

Gente ayuda por faavor ,alguien lo puede resolver
Cuáles son los números enteros que cumplen con cada una de las siguientes condiciones?
a) La distancia entre dos números opuestos es 6.
b) El siguiente de su opuesto es -3.
c) La mitad de su anterior es -2.
d) El doble de su siguiente es el opuesto de 6.
e) El valor absoluto o módulo de su siguiente es menor que su anterior.

Answers

The answer for this answer would be A

At a real estate​ agency, an agent sold a house for ​$396,000. The commission rate is ​7.5% for the real estate agency and the commission rate for the agent is ​20% of the amount the real estate agency gets. How much did the agency make on the​ house? How much did the agent earn in​ commission?

Answers

Answer:

$29,700 and $79,200

Step-by-step explanation:

Step one:

given

The selling price of the house is  ​$396,000

The commission rate is ​7.5% for the real estate agency

The commission rate for the agent is ​20%

Step two:

1. How much did the agency make on the​ house?

This amount is 7.5% of $396,000

= 7.5/100*396,000

= 0.075*396,000

=$29,700

2. How much did the agent earn in​ commission?

This amount is 20% of $396,000

= 20/100*396,000

= 0.2*396,000

=$79,200

A friend gives you two baseball cards for your birthday. Afterward, you begin collecting them. You buy the same number of cards once each week. The equation y = 4x + 2 describes the number of cards, y, you have after x weeks.
Discuss which points on the line do not make sense in this situation. Then plot three more points on the line that do make sense.

Answers

Answer:You have 2 cards upfront, so the constant term in this linear equation is 2.  The slope represents how many more cards you buy or acquire per day, week or month (depending upon how eager you are to fatten your collection).  ;)

y = 2 + (rate of acquisition of cards)(time)

y = 2 + rt

PLS HELPPPPPPPPPPP Determine the approximate value of X round to the nearest hundredth

Answers

Answer:

Step-by-step explanation:

We can immediately elimate two answers since x cannot be larger than the hypotenuse, which is 9. You can cosine = adjaent/hypotenuse, which gives the equation cos(54) = x/9, which simplifies to x = 9*cos(54). When you plug this into a calculator, you should get 5.29. Keep in mind that 54 is measured in degrees and not radians because.

Answer:

D.) x = 5.29

Step-by-step explanation:

first find the last angle measure 180-90-54=36

use law of sines to find x

sin90/9=sin36/x

(sin90)(x) = (sin36)(9)

(sin90)(x) = 5.29

x = 5.29

Which source of evidence did Wegener use to support his theory of continental drift?

fossils
magnetic fields
satellite mapping
warm equatorial climates

Answers

Answer: fossils

Step-by-step explanation: he compared the fossils on each continent and realized that they all have similar aspects.

Answer:

fossils

Step-by-step explanation:

Other Questions
Mrs.jones waters the plants on her porch every 5 days. She waters the vegetable garden every 2 days. If she waters them both today, how many days will pass before she will water both of them on the same day again? Summarize the etiology and signs and symptoms of three different inflammatory skindisorders. plz help its the pythagorean theorem Ill love you forever if you help me with this ASAP PLEASE PLZ SOMEONE, ANYONE HELP ME WITH THIS, IT IS TIMED AND MY MATH TECHER IS STRICT!!! A friend gives you two baseball cards for your birthday. Afterward, you begin collecting them. You buy the same number of cards once each week. The equation y = 4x + 2 describes the number of cards, y, you have after x weeks. Discuss which points on the line do not make sense in this situation. Then plot three more points on the line that do make sense. WILL GIVE BRAINLIEST The difference of two numbers is 4. Their sum is 12. What are the numbers? Which of the following statements about the Civil War is FALSE?a.Women formed aid associations in an effort the support the war and care for the wounded.b.Cotton production declined across the South during the Civil War.c.In an effort to increase production of goods, many factories were built in the South during the Civil War.d.Mobs attacked and destroyed printing presses where newspaper men spoke out against the war. When was the first wave out of Africa Which of the following statements correctly describes a kingdom of classification?A.Both Protista and Fungi have single-celled members.B.Only the kingdom fungi have members that reproduce asexually.C.Only the members of the kingdom Animalia have membrane-bound organelles.D.All kingdoms contain members that store energy produced from photosynthesis. U.S. personnel were first sent to South Vietnam by President Nixon. c. Eisenhower. b. Johnson. d. Kennedy. Please select the best answer from the choices provided CPLEASE ANSWER QUICKLY Which transformation will carry a regular octagon onto itself? Question 4 (2 points)Photosynthesis takes place in the nucleus of cells. (2 points)O TrueO False 2KCI -> K + CI2 balanced or unbalanced pls help Farell has a gift card with a 45 balance he bought some bags of chips that cost 2.50 each after his perchase his gift card balance was 32.50 write and solve the equation to find how how many bags of chips x he bought Which statement best describes the role of patrons in medieval Islamic society?They invented new products to sell in other areas.They taught philosophy and science at universities.They acted as missionaries to spread new religions.They supported charities such as hospitals and schools. Which question can be used to identify a physical property of an element?Does a magnet attract the element?Does rust form when the element is exposed to oxygen?Do bubbles form when the element is mixed with an acid?Does the element burn when held over a Bunsen burner flame? Which of the following defines a blome?The collective term for all regions of Earth where life can exist.A region in which specific physical conditions support a distinctive blological community adapted to those conditions.Average weather conditions in a region over a long time period. The level of environmental protection enacted typically depends on _______.a.the perceived benefit of the actionb.the support of the communityc.pressure from foreign governmentsd.all of the abovePlease select the best answer from the choices providedABCD Pick only ONE sentence Which sentence from the section shows why the right temperature is important for plants? (A) Temperature can also affect a plant (B) As with any living thing, a plant has an optimal temperature range at which it grows and preforms best (C) It may not be able to take in enough water and nutrients through it's roots (D) Too much heat can cause plant cells to break down, a process called denaturation.