x-y=11 2x+ y=19 solve using elimanation

Answers

Answer 1

Answer:

the answer is  [tex]x=10,\:y=-1[/tex]

Step-by-step explanation:

Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.

hope this helps :)


Related Questions

The average depth of the Artic Ocean is 3.953 x 10^5 feet while the average depth of the Atlantic Ocean is 1.2851 x 10^4 feet. Approximately how many times more deep is the Atlantic Ocean that the Artic Ocean?

Answers

Answer:

Hence the artic depth is approximately 31 times deeper than atlantic

Step-by-step explanation:

Given the following;

Average depth of the Artic Ocean = 3.953 x 10^5 feet

Average depth of the Atlantic Ocean = 1.2851 x 10^4 feet.

Taking the ratio of both depth;

Ratio = Depth of Artic/Depth of Atlantic

Ratio =  3.953 x 10^5/1.2851 x 10^4

Ratio =  3.076 * 10^1

Ratio = 30.76

Depth of artic/depth of atlantic = 30.76

Depth of artic = 30.76 * depth of atlantic

Hence the artic depth is approximately 31 times deeper than atlantic

Larry accumulated $3,000 in credit card debt. If the interest rate is 10% per year and he does not make any payments for 2 years, how much will he owe on this debt in 2 years for quarterly compounding? Round your answer to two decimal places.

Answers

Answer:

The amount will be "$3655.21".

Step-by-step explanation:

The given values are:

Principle,

P = $3000

Interest rate,

r = 10% i.e., 0.1

Number of times interest,

n = 4

Time,

t = 2 years

As we know,

⇒ [tex]A=P[1+\frac{r}{n} ]^{tn}[/tex]

On putting the values in the above formula, we get

⇒    [tex]=3000[1+\frac{0.1}{4} ]^{2\times 4}[/tex]

⇒    [tex]=3000[1+0.025]^8[/tex]

⇒    [tex]=3000\times 1.2184[/tex]

⇒    [tex]=3655.21[/tex] ($)

Find the slope of a line that passes
through the following ordered pairs.
Reduce to lowest terms.
(-8, 6) (-9,-5)

Answers

Answer: m =11

Step-by-step explanation:Use the slope formula to find the slope  

m

.

WILL MARK BRAINLIEST

A box contains cards that are numbered from 1 to 100. What is the probability of randomly selecting a number that is less than 12?
O 1/100
O 1/12
O 11/100
O12/100​

Answers

Answer:

C. 11/100

Step-by-step explanation:

Answer:

C. 11/100 explanation

who was the president before obama

Answers

The president before Obama was George W. Bush

Use repeated subtraction to find 68 ÷ 5

Answers

Answer:

13 with 3 remaining

or 13.6

Step-by-step explanation:

(a+b)^3 what if it is was a plus ​

Answers

Answer:

Step-by-step explanation:

(a+b)³

a³+a²b+ab²+b³

Or

a³+b³+ab(a+b)

[tex](a + b)^{3} = {a}^{3} + 3{a}^{2} b + 3a {b}^{2} + {b}^{3} [/tex]

Also do not get mixed between

[tex] {a}^{3} + {b}^{3} [/tex]

They both are not the same.

[tex](a + b)^{3} ≠ {a}^{3} + {b}^{3} [/tex]

Plz help me answer this

Answers

Answer:

(1, 7)

x = 1

y = 7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

-5x + 2y = 9

y = 7x

Step 2: Solve for x

Substitution

Substitute in y:                              -5x + 2(7x) = 9Multiply:                                         -5x + 14x = 9Combine like terms:                      9x = 9Isolate x:                                         x = 1

Step 3: Solve for y

Define original equation:                    y = 7xSubstitute in x:                                     y = 7(1)Multiply:                                                y = 7

Answer: x = 1 and y = 7

Step-by-step explanation:

first you substitude y for 7x

-5x + 2(7x) = 9

then you distribute

-5x + 14x = 9

then you combine like terms

9x = 9

then you divide both sides by 9

x = 1

then you subsitute the x value in the other equations

y = 7(1)

meaning y = 7

Melinda rents paddle boats down at the pier. She uses 5.5 feet of nylon rope to tie off each boat. She started with 80 feet of rope. After securing all the boats, she was left with more than 3 feet of rope. How many boats did Melinda tie off?
A.
at most 16
B.
at most 26
C.
less than 14
D.
more than 16

Answers

B. At most 26 is the answer

Answer:

the answer is B lol

Step-by-step explanation:

graph y=4- 3/5x Help me out please​

Answers

Answer: Y = (0,4)

X = 20/3

Step-by-step explanation:

Answer:

the points are at 0,4 and 6.6670 or 6,0

Step-by-step explanation:

Brainlist?

Help ASAP, WILL MARK BRAINLIEST!!
please look at image before answering!

Answers

Answer:

To know what the ratio for the cos of theta, we actually have to see the adjacent and hypotenuse values. cos=adjacent/hypotenuse.

Step-by-step explanation:

Select all the points that are on the graph of the line 2+4=20

(10, 0)
(1, 4)
(1, 2)
(0, 5)
(0, 10)

Answers

Answer:

A or B, it's either one of the two

5x-7=3 whats the answer

Answers

Answer:

x=2

Step-by-step explanation:

5x-7=3

Add 7 to each side

5x - 7+7 = 3+7

5x = 10

Divide each side by 5

5x/5 = 10/5

x = 2

Answer:

x = 2

Step-by-step explanation:

5x-7=3

Move the 7 from the left side. So you'll add it to both sides

5x-7(+7)=3(+7)

Making your formula

5x=10

Then divide 5x on both sides

Since 5x divided by itself is one it's just x

10 divided by 5 is 2

So the answer is x = 2

find the nth term, a1 = 24, d = 8, n = 25 loljejehwhwhshsh

Answers

yes i is doing a lot better today

what is the difference between 6204 and 5735​

Answers

Answer:

469

Step-by-step explanation:

Difference = subtraction6,204 - 5,735 = 469

I hope this helps!

the difference is 469

What are the slope and the y-intercept of the line shown in the graph?
A y-intercept - 2 and slope = -3
B. y-intercept = 2 and slope = 3
C intercept = 3 and slope = 2
D. intercept = -3 and slope = 2​

Answers

Answer:

B. y-intercept = 2 and slope = 3

Step-by-step explanation:

Answer:

y intercept is 2 and slope is - 3

Step-by-step explanation:

Who spent more of their allowed on pizza? 2/5 and 0.25

Answers

Answer:

2/5, because 2/5 is bigger than 0.25.

Step-by-step explanation:

Answer:

2/5 spent more.

Step-by-step explanation:

Well, 2/5 converted to fraction is 0.40 since 2÷5=0.4.

And 0.40 is more than 0.25.

So 2/5 spent more of their allowance.

MARKIGN PEOPLE AS BRIANLIST NEED HELP THANK YOU

Answers

Answer:

B. I think, im not in this level yet

Step-by-step explanation:

Lillian has nickels, dimes, and quarters in her coin purse. She has 3 fewer dimes than quarters, and 3 times as many nickels as dimes. If she has a total of 33 coins, which of these is either the number of nickels, the number of dimes, or the number of quarters she has?

Answers

Answer:

18 nickels, 6 dimes, and 9 quarters

Step-by-step explanation:

nickels dimes and quarters

x y and z

x+y+z=33

y+3=z

3y=x

3y+y+y+3=33

5y+3=33

5y=30

y=6

z=9

x=18

Hope this helps plz hit the crown :D

Please help asap needed for an overdue homework


Answers

Answer: 7+-2
Than it would be 5

which function below has the greatest rate of change

Answers

Answer:

Step-by-step explanation:

The average rate of h =. By comparing the results, The function which has the greatest rate of change is h (x) So, the correct answer is option C) h (x) dome7w and 7 more users found this answer helpful. heart outlined.

Answer:

There's literally nothing there

Step-by-step explanation:

A farmer is going to divide her 40 acre farm between two crops. Seed for crop A costs $15 per acre. Seed for crop B costs $30 per acre. The farmer can spend at most $900 on seed. If crop B brings in a profit of $50 per acre, and crop A brings in a profit of $110 per acre, how many acres of each crop should the farmer plant to maximize her profit? acres of crop A acres of crop B

Answers

Answer:

The answer is below

Step-by-step explanation:

Let x represent the number of acre on which crop A is farmed and B represent the number of acre crop B is farmed.

Therefore:

Since there is a total of 40 acre farm, hence:

x + y = 40        (1)

The farmer can spend at most $900 on seed, crop A seed cost $15 and crop B seed cost $50, hence:

15x + 50y ≤ 900   (2)

Her profit is given as:

Profit = 50x + 110y

From the geogebra plot, the point that maximizes the profit is at (60, 0)

Therefore the maximum profit = 50(60) + 110(0) = $3000

Find the 55th term of the arithmetic sequence 2, -18,-38

Answers

Answer:

-1078

Step-by-step explanation:

n=0 is the first term in the sequence.

Every next term is 20 less then the previous term.

In Mathematics you can write this as follows:

f(n) = f(0) - (n-1)*20

f(n) = f(0) - {(n-1)*20}

f(n) = f(0) - {(20n) -20}

Attention: Please note that -1 * -20 = +20

f(n) = f(0) - 20n + 20

Check yourself, find f(2):

f(0) = 2

f(2) = 2 - 20*2 + 20

f(2) = 2 - 40 + 20

f(2) = 2 - 20

f(2) = -18

Check yourself once more, find f(3):

f(0) = 2

f(3) = 2 - 20*3 + 20

f(3) = 2 - 60 + 20

f(3) = 2 - 40

f(3) = -38

Now just find f(55):

f(55) = 2

f(55) = 2 - 20*55 + 20

f(55) = 2 - 1100 + 20

f(55) = 2 - 1080

f(55) = -1078

Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!

Answers

Answer:

It would be the 2nd one because 15+27=42 and that is less than 44 which should be more

Step-by-step explanation:

John took a quiz there are 25 questions, I got a 76% how many did John get right and how many did he get wrong

Answers

Answer:

6 wrong.

Step-by-step explanation:

25 questions  76% 25*0.76=19 so he got 6 wrong.

Hope this helps plz hit the crown :D

Answer:

he got 19 correct and 6 incorrect

Step-by-step explanation:

What is the value of V81
[tex] \sqrt{81} [/tex]

Answers

Answer: The value is 9

Find the percent of change:
From 64 feet to 48 feet

Answers

Answer:16

Step-by-step explanation:

Using this tool you can find the percent Decrease for any value. So, we think you reached us looking for answers to questions like:

1) What is the percentage Decrease from 64 to 48? 2) What is the absolute Decrease from 64 to 48. Or may be: What is the percent change from 64 to 48?

See the solution to these problems just after below.

How to calculate percent change - Step by Step

Percent increase or decrease measures percent changes between two values. Use this calculator when comparing an old value to a new value.

The Percent Calculator (Change) uses this formula:

% change = New Value - Old Value|Old Value|× 100%

Where |Old Value| represents the absolute value of the reference (this is made in order to work well with both positive and negative values of Old Value and New Value. Note that percent change and relative change mean the same thing. It can be a percent increase or a percent decrease depending on the new and the old values. If the new value is greater than the old value, the result will be positive and we will have a increase. On the other hand, if the new value is smaller than old value, the result will be negative and we will have a we have a decrease. The old value, as a reference, may be: a theoretical, the actual, the correct, an accepted, an optimal, the starting, and so on. See more about percent percent change here.

Here are the solutions to the questions stated above:

1) What is the percentage decrease from 64 to 48?

Use the above formula to find the percent change. So, replacing the given values, we have

Percent change = 48 - 6464 x 100 = -25 % (decrease)

Where: 64 is the old value and 48 is the new value. In this case we have a % of decrease because the new value is smaller than the old value.

2) What is the absolute Decrease from 64 to 48?

This problem is not about percent or relative change, but about absolute change. Its solution is very simple:

Absolute change, or

change = new value - old value

= 48 - 64 = -16 (decrease)

Answer: -25%

Step-by-step explanation:A change from 64 to 48 represents a negative change (decrease) of -25%

Use the formula found below on this webpage to find the percent change by replacing the given values:

Percent change = New - Old

|Old|

x 100%

Percent change = 48 - 64

|64|

x 100 = -16

64

x 100 = -25 % (decrease)

Where: 64 is the old value and 48 is the new value. In this case we have a negative change (decrease) of -25 percent because the new value is smaller than the old value.

Find the missing side, round to the nearest tenth.
15
х
30*

Answers

Answer:

45

Step-by-step explanation:

15*30 is 450 rounded down is 45

What does the slope represent in this situation

Answers

Answer:The slope represents ur mom

Step-by-step explanation:

The ratio of money in Terry's bank account to Faye's bank account was 3:7. Terry then put £220 in his account and Faye withdrew £300 from her account. They now had the same amount in their accounts. How much did Terry initially have?

Answers

Answer:

Terry initially had £390

Step-by-step explanation:

The ratio of the original amount is 3:7

Let the original amount Terry has be t and the original amount Faye has be f

3/7 = t/f

or simply 3f = 7t ••••••(i)

Terry putting 220 means he now has

t + 220

Faye withdrew 300

He now has f-300

These values are equal

t + 220 = f-300

f = t+220+300

f = t + 520 ••••••(ii)

Put ii into i

3(t + 520) = 7t

3t + 1560 = 7t

7t-3t = 1560

4t = 1560

t = 1560/4

t = 390

Other Questions
More water is evaporated by oceans than is returned to them by precipitation. What is the source of the balance of the water? Select the correct text in the passage.Which sentence in the passage best shows how the setting contributes to Mr. Andersen's problem?The Alarming Awakeningby Tirzah TylerMr. Andersen leaned his arm on the bench at the bus stop and rested his head in his hand. Taking a deep breath andclosing his eyes, he wondered how much longer he would have to wait for his bus to arrive.If I hadn't stayed up so late last night playing games on my new cell phone, I wouldn't be so sleepy this morning hethought I suppose worse things could happen, though. Instead of having to keep a doctor's appointment I could have to doyard work at my mother's house. That always makes my back hurtHe looked at his phone and noticed that the time was now 8:52 a.m. His bus was scheduled to arrive at 9.08 a.m. Theovercast sky and the rhythmic whizzing of the traffic at the bus stop made him drowsy. He closed his eyes and thought, I haveenough time for a power nap before my bus arrives. He set the alarm on his phone for 9:06 a.m. so that he would be awake intime. Then he crossed his arms, rested his head on his chest, and drifted off peacefully to sleep.A passing car honked and awakened Mr. Andersen from his slumber. He looked at his phone and saw that the time wasnow 9:19 a.m. Panicked, he turned off the alarm and discovered that the volume on his phone's alarm clock was turned downcompletely. Oh, no, the bus left without me! he thought. How will I keep my appointment now? Instinctively, he called hismother."What a pleasant surprise!" his mother exclaimed over the phone. "You never call me on a Saturday.""Hi, Mom," Mr. Andersen said. "Can you please drive me to my doctor's office? My appointment is at 10 a.m., and he will The oldest documented forms of art are the visual arts.1) True2) False The movement of energy in an ecosystem can be shown using a:spider webweb of lifefood chain Line t has a slope of -9/2 line u is parallel to t what is the slope of u Plz show how u got the answer The perimeter of a triangle is 173 - 5 units. One side is 3x + 5 units and another is 82 3 units. How many units long is the third side?A.6x-7B.6x-13C.12x-7D.22x-23 (1) On May 18, 1980, Mount St. Helens sent an explosion of ash, gas, and rock into the sky. This eruption led to the death of 57 people, in addition to permanently changing the surrounding landscape. It is still one of the most disastrous volcanic eruptions in recent history.(2) Mount St. Helens is located in the Cascade Mountain Range in Washington, United States. It is part of the Ring of Fire, an important geological area. This area is home to over 160 active volcanos. Volcanos are active if they have erupted at least once in the last 10,000 years. Mount St. Helens is a stratovolcano. This means it is a steep, evenly shaped cone made of many layers of volcanic rock and ash. These volcanos often have explosive eruptions.(3) Before the eruption of Mount St. Helens, a bulge of rock formed on the northern side of the mountain. Then, early on May 18th, an earthquake occurred that was caused by increasing pressure inside the mountain. This led to a landslide. The force of the landslide collapsed the entire northern side of the mountain, which led to a lateral blast. Lateral blasts occur when volcanos erupt sideways, rather than at the peak. This lateral blast sent rocks flying for miles at high speeds. These blasts destroy forests, buildings, and other structures in a short amount of time. The lateral blast at Mount St. Helens destroyed an area of about 150 square miles. It destroyed forests and left debris in three-inch layers, making the situation even more disastrous.(4) When Mount St. Helens erupted, clouds of deadly ash, volcanic rock, and pyroclastic flows flew outward from the volcano. Pyroclastic flows are more dangerous than lava flows. They are made of gas and volcanic matter. The temperature inside one can reach 1832 F. They move at a speed of more than 50 miles per hour. It is impossible for humans and animals to outrun them. These flows make the eruption of stratovolcanos deadly. As a result, the forests covering the mountain were ruined. Fortunately, there weren't any towns near enough to be destroyed.(5) By the time Mount St. Helens finished erupting, a crater had formed at its top. Forests had been destroyed for miles and rivers had been blocked by debris. Clouds had even blocked out the sun in the entire state. It took years for the environment to recover. evaluate the expression (718+45)32please help HELPPPP PLEASE MATH FUNCTION Using the model,what is the mass of the atom pictured? A)3amuB)5amuC)7amuD)9amu Read this excerpt from the index of a book. Cairo, Egypt, 22 Cleopatra II, Queen, 47, 51 Cleopatra VII, Queen, 68 Coffin with hieroglyphs, 59 Copies of Rosetta Stone inscriptions, 30 Cursive script, 30 The Riddle of the Rosetta Stone, James Cross Giblin For which subject would this book be the best resource? the cities of Egypt Egyptian burial rites the queens of Egypt Identify the number of protons and electronsin fluorine and iodine.The element fluorine helps prevent tooth decay and is found in many toothpastes,Atomic number: 9 Harold filled his swimming pool over the weekend. The pool has a capacity of 540 gallons. Harold put in 180 gallons of water on Saturday. The garden hose that Harold used supplies 9 gallons of water per minute. How long did it take for Harold to fill the pool to capacity on Sunday? Define a variable for the unknown quantity. Write and solve an equation to answer the question.Let m= the number of _________a.) gallons in the pool on Sundayb.) Minutes to fill the pool on Saturdayc.) gallons the garden hose puts in the pool on Sundayd.) minutes to fill the pool on SundayAn equation to represent the situation is __________=540.a.) m+89b.) 189mc.) 9m+180d.) 180m+9So, m= _________. It took Harold ____________ minutes to fill the pool to capacity on Sunday. What is Slope from two pointsWhat is the slope of the line through (-10, 1) and(0, 4)? A driver of a car traveling at 15.0 m/s applies the brakes, causing a uniform acceleration of -2.0 m/s squared. How long does it take the car to accelerate to a final speed of 10.0 m/s? How far has the car moved during the braking period? Seven less than three times a number is two. Wishing Well by Juice WRLD ORLegends by Juice WRLD I need to rewrite a key event from the book called Animal Farm by George Orwell's novel but it needs to be a perspective that has not been presented in the original text. I need help with all of these questions Pls help and thank you