PLEASEEEE HELP ME I NEED TO SHOW MY WORK TOO HELP

PLEASEEEE HELP ME I NEED TO SHOW MY WORK TOO HELP

Answers

Answer 1
Answer:

x = -2
y = 3

Step-by-step explanation:

[tex]-4x-2y=2\\ -4x+y=11[/tex]

Subtract the two equations

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

Remove parentheses

[tex]-4x-2y+4x-y=2-11[/tex]

Cancel one variable

[tex]-2y-y=2-11[/tex]

Combine like terms

[tex]-3y=2-11[/tex]

Calculate the sum or difference

[tex]-3y=-9[/tex]

Divide both sides of the equation by the coefficient of variable

[tex]y=\frac{-9}{-3}[/tex]

Determine the sign for multiplication or division

[tex]y=\frac{9}{3}[/tex]

Cross out the common factor

[tex]y=3[/tex]

Substitute into one of the equations

[tex]-4x+3=11[/tex]

Rearrange variables to the left side of the equation

[tex]-4x=11-3[/tex]

Calculate the sum or difference

[tex]-4x=8[/tex]

Divide both sides of the equation by the coefficient of variable

[tex]x=-\frac{8}{4}[/tex]

Cross out the common factor

[tex]x=-2[/tex]

The solution of the system is

[tex]x=-2\\ y=3[/tex]

I hope this helps you

:)


Related Questions

El ayuntamiento impone un 15% de multas retrasadas ¿Cuál será el impuesto para multas de 75€?

Answers

Answer:

75 x 0.15 = 11.25

Step-by-step explanation:

Which of the following represents the value of a^-4/b^-2 when a is 3 and b is 2

Answers

Let's find out

[tex]\\ \sf\longmapsto \dfrac{a^{-4}}{b^{-2}}[/tex]

[tex]\\ \sf\longmapsto \dfrac{b^2}{a^4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{2^2}{3^4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{4}{81}[/tex]

please help im gonna fail ):

Answers

Step-by-step explanation:

the answer is the f^-2(x)=2x+2

over

4

Answer:

the last one

Step-by-step explanation:

do you need an explanation?

Vic's favorite cookie recipe uses 250 grams of flour for every 170 grams of butter. Imani made cookies using 750 grams of flour for every 630 grams of butter. What will Vic think of the amount of butter in Imani's cookies?

Answers

Vic's cookies having a ratio of flour to butter of 250/170 contains less

butter than Imani's cookies, 750/630, what Vic will think is therefore;

(A) Imani's cookies have too much butter

Which method can be used to evaluate the cookies?

The quantity of flour per 170 grams of butter in Vic's cookies = 250 grams

The amount of flour Imani uses for every 630 grams of butter = 750 grams

Required:

What Vic will think about the amount of butter in Imani's cookies

Solution;

[tex]Ratio \ of \ butter \ per \ gram \ of \ flour \ in \ Vic's \ cookies = \dfrac{170 \, g}{250 \, g} = \dfrac{17}{25} = \mathbf{0.68}[/tex]

[tex]Ratio \ of \ butter \ per \ gram \ of \ flour \ in \ Imani's\ cookies = \dfrac{630\, g}{750\, g} = \dfrac{17}{25} = \mathbf{0.84}[/tex]

Imani's cookies contains more cookies than Vic's cookies, what Vic will

think of the amount of butter in Imani's cookies is therefore;

(A) Imani's cookies have too much butter

Learn more about fractions here:

https://brainly.com/question/24378782

Answer:

Step-by-step explanation:

the answer is A ^^

1970 Dodge challanger rt

Answers

Answer:

215 in³

Step-by-step explanation:

This is just for math problems.

The 1970 Dodge Challenger could have engines ranging from 225 cubic inches to 440 cubic inches.

What is the difference in displacement between the smallest and largest engines?

Now it's a math problem.

440 - 225 = 215

Answer: 215 in³

Sophia downloaded 590 vacation pictures. Of the pictures, 60% show the beach. How many pictures show the beach?

Answers

Answer:

354

Hope this helps! Please mark Brainliest!

Answer:

the answer is 354

60% = 0.6/.6

590 x .6 = 354

Which expression is equivalent to 2(3g – 4) - (8g + 3)?
A 29 -1
B.-29 +5
C. 29 - 7
D. -29 - 11​

Answers

Answer:

The Answer is D

Step-by-step explanation:

2 MULTIPLE CHOICES! 75 POINTS!!! EASY!!

Match the graph with the correct equation

----------------------------------

2. A. Y = X - 3


B. Y = X + 3

-------------------------------

3. A. Y = 3X + 1


B . Y = 1X + 3

-------------------------------

4. A. Y= -3X - 3


B. Y= 3X - 3

------------------------------------------------------------------------------------------------------------------------------

Please try you're best to earn the points, do NOT guess.

Thanks!


There is only 2,3,4 meaning i already did 1. please DO answer them


Thanks again!

Answers

Answer:

Step-by-step explanation:

20 and 21 will give BRAINLIEST

Answers

Answer:

20 is 12 1/2

21 is 11 1/5

Step-by-step explanation:

??? help please i need to get this done

Answers

Step-by-step explanation:

Take the average of the two points that are on each side of the shapes.

--> to find the circle's number, 1+0/2 = 0.5

triangle = 3+2/2 = 2.5

star = 4+3/2 = 3.5

What is the mode?

7, 6, 7, 7, 5, 3, 6, 5

TYPE ONLY THE NUMERIC ANSWER

Answers

Answer:

7

Step-by-step explanation:

5, 5, 6, 7, 7, 7

7 appears the most

Answer:

The mode is 7

Step-by-step explanation:

Add all of these numbers and divide it by 8 to get 7

El radio medio de la Luna es 1737 km, el de la Tierra es de 6,371 · 106 m, y el del Sol es de 6,96 · 105 km. a. ¿Cuántas veces es mayor el radio de la Tierra que el de la Luna? b. ¿Cuántas veces es mayor el diámetro del Sol que de la Tierra? c. ¿Cuántas veces es mayor el diámetro del Sol que el de la Luna?

Answers

Answer:

a) El radio de la Tierra es 3.668 veces mayor que el radio de la Luna.

b) El radio del Sol es 109.245 veces mayor que el radio de la Tierra.

c) El radio del Sol es 400.711 veces mayor que el radio de la Luna.

Step-by-step explanation:

a) ¿Cuántas veces es mayor el radio de la Tierra que el de la Luna?

En esta pregunta nos piden la razón del radio medio de la Tierra al radio medio de la Luna. Las unidades están en kilómetros:

[tex]r = \frac{6.371\times 10^{3}\,km}{1.737\times 10^{3}\,km}[/tex]

[tex]r = 3.668[/tex]

El radio de la Tierra es 3.668 veces mayor que el radio de la Luna.

b) ¿Cuántas veces es mayor el diámetro del Sol que de la Tierra?

El diámetro equivale a dos veces el radio, por tanto, se puede utilizar la relación de radios para determinar la razón, definida en este caso como la razón del radio medio del Sol al radio medio de la Tierra. Las unidades están dadas en kilómetros:

[tex]r= \frac{6.96\times 10^{5}\,km}{6.371\times 10^{3}\,km}[/tex]

[tex]r = 109.245[/tex]

El radio del Sol es 109.245 veces mayor que el radio de la Tierra.

c) ¿Cuántas veces es mayor el diámetro del Sol que el de la Luna?

El diámetro equivale a dos veces el radio, por tanto, se puede utilizar la relación de radios para determinar la razón. Una forma sintética de obtener la razón consiste en obtener el producto de las razones encontradas en a) y b). Es decir:

[tex]r = 3.668\times 109.245[/tex]

[tex]r = 400.711[/tex]

El radio del Sol es 400.711 veces mayor que el radio de la Luna.

1. 1. Under a dilation
of scale factor 2 with the center at the origin, if S (6, 7), what will
be the coordinates of the point S'?
2. What is the scale factor of the group dilation (with center at the origin) if point E (5,3)
becomes E' (15,9)?
3. Under a dilation of scale factor 5 with the center at the origin, if M (3,6), what will be
the coordinates of the point M'?
4. What is the scale factor of the dilation (with center at the origin) if point H (4,6)
becomes H' (24, 36)?
5. Under a dilation of scale factor 4 with the center at the origin, if J (2, 3), what will be
the coordinates of the point J'?
6. What is the scale factor of the dilation (with center at the origin) if point U (5,7)
becomes U' (25, 35)?
7. Under a dilation of scale factor 7 with the center at the origin, if K (5,6), what will be
the coordinates of the point K'?
8. What is the scale factor of the dilation (with center at the origin) if point A (4,5)
becomes A' (16, 20)?

Answers

1:(12,14)
2: 3
3:(15,30)
4: 6
5(8,12)
6:5
7:(35,42)
8:;

I need help!!
I have only 5 mins

Answers

Answer:

it is 11 i believe if not sry delete my answer

Step-by-step explanation:

What is the length of arc AB?
O 67 cm
O 127 cm
O 187 cm
O 367 cm

Answers

The length of an arc with π/3 radian angle and a radius of 18 cm is calculated as: 6π cm.

What is the Length of an Arc?

If we are given a circle with radius, r, and a radian angle, ∅, therefore, the length of an arc would be:

S = r∅

Given the following:

r = 18 cm∅ = π/3 radians

Length of arc = 18 × π/3 = 6π cm

In conclusion, the length of an arc with π/3 radian angle and a radius of 18 cm is calculated as: 6π cm.

Learn more about length of an arc on:

https://brainly.com/question/2005046

67% of students in 7th grade claim to brush their teeth twice a day. If there are
124 students in 7th grade How many brush their teeth twice a day?

Answers

your answer is 83.08 i’m not sure why i got a .08 but most likely it’ll be rounded to 83 students

what is 9d + 6e in common factor for?
Sorry the picture is small you might have to zoom in!!

Answers

Hello !

________

[tex]\sf{9d \: + \: 6e}[/tex]

________

[tex]\sf{Rewrite \: as:}[/tex]

[tex]\sf{= 3 \: ^. \: 3d \: 3 \: ^. \: 23e}[/tex]

[tex]\sf{Factor \: out \: common \: term \: 3}[/tex]

[tex]\sf{= 3(3d \: + 2e)}[/tex]

Hopefully This Helps ! ~

#LearnWithBrainly

[tex]\underline{Answer :}[/tex]

Dollixna ~

what is the area of this quadrilateral
giving brainliest

Answers

Answer:

A.

Step-by-step explanation:

Area of triangle is the length*width/2 => 4*4/2=8

For the 2nd triangle, we can separate it into two right triangles by cutting it down the middle. We can find the width of one triangle by taking the base of the first one we worked with and divide it by 2. 4/2 is 2. Multiply this by 3 to get the area, and divide by 2 again. 2*3/2=3. 3

So our answer is 8+3+3=14.

This quadrilateral is separated into two triangles.

[tex]\sf area \ of \ triangle = \dfrac{1}{2} * base * height[/tex]

[tex]\hookrightarrow \sf \dfrac{1}{2} * 4 * 4 +\dfrac{1}{2} *4 * 3[/tex]

[tex]\hookrightarrow \sf14 \ cm^2[/tex]


A bag has 1 orange marble, 4 blue marbles, 3 yellow marbles, and 1
black marble. You randomly pull a marble from the bag, put it back,
and then pull out another one.
What is the probability of getting a blue and then a blue? Write your
answer as a fraction.

Answers

Answer:

4/9

Step-by-step explanation:

you know how many marbles there are in the bag so you add the number which is 9 so this shkws it will be something out of 9 since that is the total so now there are 4 blue marbles so you will just have to 4/9 I think thats how I would go on doing it.

Simba Travel Agency arranges trips for climbing Mount Kilimanjaro. For each trip, they charge an initial fee of \$100$100dollar sign, 100 in addition to a constant fee for each vertical meter climbed. For instance, the total fee for climbing to the Shira Volcanic Cone, which is 300030003000 meters above the base of the mountain, is \$400$400dollar sign, 400.

Answers

Complete question :

Simba Travel Agency arranges trips for climbing Mount Kilimanjaro. For each trip, they charge an initial fee of $100 dollars, in addition to a constant fee for each vertical meter climbed. For instance, the price for climbing to the Shira Volcanic Cone, which is 3000 meters above the base of the mountain, is $400 dollars. Let F(d) denote the fee of a trip F (measured in dollars) as a function of the vertical distance climbed d (measured in meters). Write the function's formula.

Answer:

F(d) = $100 + $0.1d

Step-by-step explanation:

Given the following :

Total Cost of mountain climbing :

Initial fee + constant fee per vertical meter climbed

Initial fee = $100

Total cost of climbing the Shira volcanic cone = $400

Height of Shira volcanic cone = 3000 m

The fee of a trip ; F(d) ; where d = distance

Let constant fee per vertical meter = p

F(d) = $100 + 3000 * p

$400 = $100 + 3000p

$400 - $100 = 3000p

$300 = 3000p

p = 300/3000

p = $0.10

Hence, the fee for a trip:

F(d) = $100 + $0.1d

Answer:

y=100+0.1x

Step-by-step explanation:

khan academy

The probability that a city bus is ready for service when needed is 84%. The probability that a city bus is ready for service and has a working radio is 67%. Find the probability that a bus chosen at random has a working radio given that it is ready for service. Round to the nearest tenth of a percent. Show your work

Answers

Question↷

The probability that a city bus is ready for service when needed is 84%. The probability that a city bus is ready for service and has a working radio is 67%. Find the probability that a bus chosen at random has a working radio given that it is ready for service. Round to the nearest tenth of a percent. Show your work

Answer↷

79.76%

Solution↷

The probability that a city bus is ready for service when needed ⇢ 84% = 0.84The probability that a city bus is ready for service and has a working radio ⇢ 67% = 0.67the probability that a bus chosen at random has a working radio given that it is ready for service⇢ 0.84/0.67 = 0.79 = 79.76 %

PLEASE HELP picture below

Answers

Answer:

12/4 is equal to 15/5

The next equality after 12/4 is 15/5.

Answer:

15

Step-by-step explanation:

12/4=3, so x/5=3.

5x3=15

Which choices are equivalent to the expression below? Check all that apply. 3√6 A. √27•√2 B. √18 C. 54 D. √54 E. √27•√4 F. √9•√6​

Answers

Answer:

A, D and F

Step-by-step explanation:

3√6 = √3^2*6

3√6 = √54

Applicable answers

A. √54 = √27*2 = √27 * √2

D. 3√6 = √54

F. √54 = √9*6 = √9 * √6

A can contains 24 fluid ounces of fruit juice. How many pints of fruit juice does the cam contain ?

Answers

Answer:

1.5 pints.

Step-by-step explanation:

Solution,

Given,

1 cup = 8 oz.

2 cup = 1 pint.

So,

24 oz = 1 cup / 8 = 3 cup.

Then,

We have,

3 cup = 1 pint / 2 cups = 1.5 pints.

Best answer gets brainliest!!!

1. In the following pictograph, how many symbols would you use to represent 21 books?
a.7
b.3.5
c.126
d.63

Answers

Answer:

B

Step-by-step explanation:

Since 3 symbols represent 18 books, half of the symbol is 3. 18+3=21

On a plane, 2/5 of the passengers were British. 30% of the British passengers were men. There were 36 British men on the plane. Find the total number of passengers on the plane

Answers

Answer:

76 passengers

Step-by-step explanation:

100-36 is 64 and that makes 64 + 36 =100-30 is 70% and we have 36 + 40 =76

There were 300 passengers.

What is Algebra?

Algebra is the branch of mathematics that helps in the representation of problems or situations in the form of mathematical expressions.

Given:

Fraction of British = 2/5

Percent of British men = 30%

Number of British men = 36

let the British passenger be x

30 /100 * x= 36

x=120

and let the total passenger by y

2/5 of y = 120

y= 120 * 5/2

x= 300

Hence, there were 300 passengers.

Learn more about algebra here:

https://brainly.com/question/24875240

#SPJ5

(1 point) A fish tank initially contains 15 liters of pure water. Brine of constant, but unknown, concentration of salt is flowing in at 5 liters per minute. The solution is mixed well and drained at 5 liters per minute. a. Let x be the amount of salt, in grams, in the fish tank after t minutes have elapsed. Find a formula for the rate of change in the amount of salt, dx/dt, in terms of the amount of salt in the solution x and the unknown concentration of incoming brine c. dx grams/minute b. Find a formula for the amount of salt, in grams, after t minutes have elapsed. Your answer should be in terms of c and t. x(t)= grams c. In 10 minutes there are 25 grams of salt in the fish tank. What is the concentration of salt in the incoming brine? C = g/L

Answers

Answer:

a. [tex]\dfrac{dx}{dt} = 6\frac{2}{3} \cdot c[/tex]

b. [tex]x(t) = 6\frac{2}{3} \cdot c \cdot t[/tex]

c. [tex]c = \dfrac{3}{8} \ g/L[/tex]

Step-by-step explanation:

a. The volume of water initially in the fish tank = 15 liters

The volume of brine added per minute = 5 liters per minute

The rate at which the mixture is drained = 5 liters per minute

The amount of salt in the fish tank after t minutes = x

Where the volume of water with x grams of salt = 15 liters

dx =  (5·c - 5·c/3)×dt = 20/3·c = [tex]6\frac{2}{3} \cdot c \cdot dt[/tex]

[tex]\dfrac{dx}{dt} = 6\frac{2}{3} \cdot c[/tex]

b. The amount of salt, x after t minutes is given by the relation

[tex]\dfrac{dx}{dt} = 6\frac{2}{3} \cdot c[/tex]

[tex]dx = 6\frac{2}{3} \cdot c \cdot dt[/tex]

[tex]x(t) = \int\limits \, dx = \int\limits \left ( 6\frac{2}{3} \cdot c \right) \cdot dt[/tex]

[tex]x(t) = 6\frac{2}{3} \cdot c \cdot t[/tex]

c. Given that in 10 minutes, the amount of salt in the tank = 25 grams, and the volume is 15 liters, we have;

[tex]x(10) = 25 \ grams(15 \ in \ liters) = 6\frac{2}{3} \times c \times 10[/tex]

[tex]6\frac{2}{3} \times c =\dfrac{25 \ grams }{10}[/tex]

[tex]c =\dfrac{25 \ g/L }{10 \times 6\frac{2}{3} } = \dfrac{25 \ g/L}{10 \times \dfrac{20}{3} } =\dfrac{3}{200} \times 25 \ g/L= \dfrac{75}{200} \ g/L = \dfrac{3}{8} \ g/L[/tex]

[tex]c = \dfrac{3}{8} \ g/L[/tex]

what is the y-inercept of the graph of f

Answers

y-intercept is where the line on your graph crosses through the y-axis

Please Helpppppppppppppp!!!!

Answers

Answer:

(x - 36) is the measure of the angle A  

Step-by-step explanation:

x-36 is the answe hope it’s right

Which relation is also a function?
A {( 5, 8), (5, 9), (8, 9), (10, 8)}
B {( 5, 8), (7, 9), (8, 9), (10, 8)}
C {( 5, 8), (7, 9), (7, 5), (10, 8)}

Answers

The answer is B. B is the only one where all the inputs only have 1 output.
Other Questions
Question 1 of 10The was developed as a result of the Securities Act and SecuritiesExchange Act.A. Federal Reserve BankB. Federal Deposit Insurance CorporationC. Securities and Exchange CommissionD. Securities and Exchange Center of AmericaSUBMIT ILL GIVE BRAINLY THINGYour class raised funds for an end of the year trip to an amusement park. It costs $150.00 to rent a school bus for the day plus $33.00 per student admission ticket. If your class raised $1000.00, how many students can attend? Write an equation and solve 1 5/6 * 2 * 3/4 + 1 5/6 * 1 * 3/4 A kite is inscribed within a square with a side lengths of 9 units. A kite is inscribed in a square with a side length of 9 units. What is the area of the kite? 27. 5 square units 36. 0 square units 40. 5 square units 45. 0 square units. plss someone help my do this problem (a^14 a^-6 / a^25)^3 find the size of unknown anglese) 100+a please help thank you AP PsychologyWhen Bob noticed a pain in his thigh, he was convinced it was a sign of bone cancer. Although x-rays revealed no sign of cancer, Bob sought the opinions of a dozen other physicians who agreed with the original opinion. What psychological disorder might Bob's behavior indicate? Conversion disorder Major depressive disorder Catatonic schizophrenia Illness anxiety disorder Depersonalization disorder Diego pays $4.50 for 3 pounds of bananas and 2 pounds of oranges. One pound of oranges cost $0.75 more than one pound of bananas let b represent the price per pound of bananas. Which equation represents the situation, and what is the price per pound of each fruit? solve pls brainliest If the area of a triangle is 100 in^2, and the height is 10in, find the length of the base in inches.Round to the nearest inch if applicable. Where is water stored?in a aquiferin a sewerin the atmosphere (All of the above) Baby Max watches his mother jingle her keys in front of him. After several minutes, he looks away, no longer interested. This would indicate that he is habituated to the jingling keys and is showing _____ the stimulus after repeated presentations. Benny has 20 jellybeans and wants to share with his friends how many will each friend get? there are 5 friends. Which are ways cybercriminals act? Select 3 options.log keystrokes of other usersdestroy informationsell usernames and passwordsshare open-source softwarecorrect social injustice QuestioEvaluate the given expression if a = -2 and b = 5.a3 + b2. 71. 17. 21. -17 Evaluate the expression. Write your answer in simplest form.1920+(1820)+1720+(1620)+ ... +(420)+320+(220)+120 Write 3 x 3 x 3 x 3 x 3 x 3 as a power. Then find the value of the power 3 x 3 x 3 x 3 x 3 x 3 = The value of the power is Exercise 1: Circle the correct words (From SSA - UNIT 1 - GRAMMAR 1) 1. Wendy always is reading/reads the back page of the newspaper irst, 2. My parents are having/have dinner at an expensive restaurant tonight, 3. I don't watch/I'm not watching romantic films4. We_go/are going to the theater once a month. 5. Greg stays/is staying in bed kor the time being, 6. I hardly ever wear/am wearing shoes in the house, 7. How are you getting/do you get to school every day? 8. Can you be quiet please? I try/am trying to do some work9. What do you do/are you doing at the moment? 10. Does she come/Is she coming out with us on Friday? Carrie wants to make pancakes for her family for breakfast. The recipe on the box states that 10 2/3 cups of dry pancake mix are needed to make 24 pancakes. Carrie wants to make half of the recipe to make 12 pancakes. In simplest form, how many cups of dry pancake mix will she need in order to make 12 pancakes? A 16/3B 5 2/3C 5 1/3D 21 1/3