Mathematics Middle School

Solve the system of equations by adding or subtracting

Solve The System Of Equations By Adding Or Subtracting

Answers

Answer 1

Answer:x=2 y=-7

Step-by-step explanation:3(2)=6-7=-1

2(2)=4-7=-3

Answer 2
3x + y = -1
-1y -y
2x=-1
2. 2
X=0.5


2x+y=-3
-1y -y
1x=-3
1. 1
X=-3

(0.5,-3)

Related Questions

Alexa is saving to buy a new bike that costs $265. So far she has saved $45. If she is able to save $11 each week, how many weeks will it take her to save enough to buy her coveted bike?
Kole wrote (265 - 45)/11 = w.
Bella wrote 11w + 45 = 265.
Who do you agree with? Justify your response.

Answers

Answer:

nose

Step-by-step explanation:

They are both correct to an extent; however, Kole is more correct in the fact that he simplified the equation. Where Bella has the right idea but did not simplify the equation.

I agree with Kole because 220/11 =20 weeks until she has saved enough for her bike.

Both equations get you the correct answer though:

Kole: 265-45=220/11=20 weeks

Bella: 11w + 45 = 265 ... subtract 45 from both sides ... 11w = 220 ... divide both sides by 11 and you get 20 weeks

A temperature of C degrees Celsius is the same as 5/9
C+32 degrees Fahrenheit. According to weather records, the highest recorded temperature in the state of New Mexico is 50 degrees Celsius.

Answers

1+1 = 2 second first of all and second of all and then first and then one +2 equals five and 8-2 equals line
I’m not sure what the question is.

no explanation no brainliest

Answers

Answer: this is a right rectangular pyramid so the volume formula is [tex]\frac{lwh}{3}[/tex] with l= lenght, w= width, h= Height.

So 10 x10 x9 = 900

900/3 = 300 cubic meters

Step-by-step explanation:

What is a brainliest can i have one

i need help 8th grade math

Answers

Answer:

the slope shows that the average rating increased 0.4 points per month

Step-by-step explanation:

the equation is written in slope-intercept form. aka y=mx+b. m represents the slope and b represents the y-intercept. therefore in the equation y=0.4x+3 the slope is 0.4

hope this made sense and helped you for future problems :)

The slope shows that the average rating increased 0.4 points per month

please help I only have today to do this type of work and I'm struggling!!
Alice, Raul, and Maria are baking cookies together. They need cup of flour and cup of butter to make a dozen cookies. They each brought the ingredients they had at home. Alice brought cups of flour and cup of butter, Raul brought cup of flour and cup of butter, and Maria brought cups of flour and cup of butter. If the students have plenty of the other ingredients they need (sugar, salt, baking soda, etc.), how many whole batches of a dozen cookies can they make?

Answers

Answer is In the Picture

PLEASE HELP!!!!! DEU IN A FEW HOURS

Answers

The answer is H. 133

88+25-58-45+32+91=133
The answer is 133 I’m pretty sure

How do you determine which variable is independent
and which one is independent?

Answers

Answer: An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. For example, someone's age might be an independent variable.

For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?

Answers

Answer:

Step-by-step explanation:

All sides of a triangle equel 180 degrees, so 180-60-55=115. 180-115 is 65. 65-20-45. Hope this works!

Ok x = 45 because 180-60-55-20 = 45

Write a rule that Linda can use to figure out how many cups of chocolate she needs for any number of cups of cream when making Super Truffles.


pls help

Answers

The y is going up 2 for one x

You made Marcellus 3 times as tall as Dan but you dragged Marcellus’s eyes to be 1 times as far apart as Dan’s eyes. A scale giant would have the same multiple for both.

If Dan's eyes are 5 cm apart, how many centimeters apart should Marcellus's eyes be?

Answers

If you dragged Marcellus’s eyes apart 1x farther than Dan’s eyes then they would both have eyes that are 5cm apart because 5 x 1 = 5

Marcellus's eyes should be 5 cm apart

If Marcellus eyes are 1 times as far apart as Daniels eyes. We can write this mathematically as;

Marcellus eyes are 1x far apart as Dan's eyes.

If we spin this over, we are told that Dan's eyes is 5 cm apart. How far apart would Marcellus's be.

Marcellus eyes will be Dan's eyes divided by the mathematical equivalent we wrote the other time, which is 1 times.

Essentially, Marcellus's eyes will be just as wide as Dan's eyes

learn more about scaling here https://brainly.com/question/8072603

Can someone help rq pls it done by tmrw

Answers

Answer:

8 : 20 and 24 : 60

Step-by-step explanation:

Given the ratio

[tex]\frac{2}{5}[/tex]

To obtain a ratio with 20 on the denominator multiply numerator and denominator by 4

= [tex]\frac{2(4)}{5(4)}[/tex] = [tex]\frac{8}{20}[/tex]

To obtain a ratio with 24 on the numerator multiply numerator and denominator by 12

= [tex]\frac{2(12)}{5(12)}[/tex] = [tex]\frac{24}{60}[/tex]

The number y of Northern Rocky Mountain wolf breeding pairs x years since 1995 can
be modeled by y = 0.34x^2+ 3.0x + 9 When were there about 30 breeding pairs?
***no links or i’ll report***

Answers

Answer:

Step-by-step explanation:

PLS HELP ASAP 3 MORE QUESTIONS I NEED HELP WITH BUT I CAN ONLY GO 1 BY 1

Answers

Answer:

I DONT KNOW THE ANSRWE EITHERAAAA

(SOMEONE PLEASE HAVE THIS ANSWER BY APRIL 30TH)
Suppose a recipe calls for 3 cups of sugar per 4 quarts of lemonade. How many cups of sugar are needed to make 10 quarts? Which setup would allow us to correctly solve the problem? (see image)

Answers

I would say it’s option b.
I’m sure of it.

I hope it helps : )

PLEASE ANSWER FAST! (look at the picture for the questions

Answers

I’m not sure if it’s B or C but the one i would choose is B!

Please Answer ASAP THANK YOU

Answers

Answer: 1

Step-by-step explanation: m/8n > 4/8(1/2) ( since its 1/2 all u need to do is change the fraction to whole number which is 1/2 = 0.5)

The given will become 4/4 then simplest form is 1

Hope this helps! :)

Answer is 1 I hope that’s helps

I do not get this what why is math so hard aaaaaaa due tmr morning btw qwq

Answers

Answer:

arent all triangles automatically 180

Step-by-step explanation:

Answer:

Because in math u is texting me child

Step-by-step explanation:

Anyone please help :( ​

Answers

Answer:

4x + 10

----------

The answer is:


4x+10

Somone please tell me the answer to 10?

Answers

Answer:

15

Step-by-step explanation:

Answer is 15, hope this helps

HELPPPPPPPPPPPPPPPP MEEEEEEEE!!!!!!!!!

Answers

1 in 13 or 1/13 because those are the only numbers it gives you and since he only sold one vanilla cone in the last thirteen cones you can only assume that he sells one vanilla every 13

Answer:

the answer is 12 percent

Step-by-step explanation:

Because if you sold one ice cream that is vanilla then 13 of the last ice creams were sold then that means all the other 12 ice creams were a different kind

Hey im starting and i have a few rough ones/8ft.=_in. Thanks!

Answers

Answer 8ft = 96inches
8ft = 96inches :)) hope I helped out a lil

7. Ruben has colored t-shirts in a drawer that he wears for work. He has the following shirts: • 5 red shirts • 7 yellow shirts • 10 blue shirts • 2 orange shirts If Ruben picks a t-shirt from the drawer without looking, what is the probability, he will pick a blue t-shirt?
Need help ASAP
The best answer from someone will be put on brainlist!!!

Answers

Answer:

he will most likley pick a blue shirt

Step-by-step explanation:

I haven’t done these type of problems in years but if you are looking for a fraction then add the amount of all the shirts
5+7+10+2=24
Since the asked for the probability of blue shirts you fraction will be 10/24
Simplified it’ll be 5/12
I hope this helps!

PLEASE HELP!! i am struggling so badly on this concept- please help, be serious and no links or incorrect answers please. if explained i’ll be giving bonus points and thanks to all of your answers and a BRAINLEST!!

Answers

Answer:

32 minutes

Step-by-step explanation:

6 pages= 8min

1 page= 8/6= 4/3 min

24 pages = 4/3× 24= 32

Write down a number that has the same value as each number:


a. |5| b. |-12.9|

c. Write down a number that has a value less than |4.7|.
d. Write down a number that has a value greater than |-2.6|.

Answers

Answer:

a.|-5| or 5

b.|12.9| or 12.9

c. |4.6| or any number between 0 and 4.69

d. |2.7| or any number between 2.61 and ∞

Step-by-step explanation:

No explanation available

Kristen has 3 friends she is inviting over and wants to have gift bags ready for them. She’s not sure how much each gift bag will cost yet. What expression could represent the value of the total cost?

A. 3(g)
B. 3xg
C. 3g
D. All the above
E. None of the above

Answers

Answer:

D. All of the above

Step-by-step explanation:

A is right, 3(g) = 3g

I don't know about b, but c is right, so it is all of the above

The answer is (D) All The Above

Phoebe constructs a scatter plot to show the data. What scales could she use for the x- and y-axes?

Answers

Answer:

X can be in increments of 1

Y Can be in increments of 5

Answer:

X can be in increments of 1

Y Can be in increments of 5

Step-by-step explanation:

Find the area of the figure. Round your answer to the nearest hundredth, if necessary.
ASAP

Answers

area = 1/2pi•r^2
1/2pi•9^2= 127.23 cm^2

WILL GIVE BRAINLIEST

A Ferris wheel has a diameter of 212 feet. How far will one passenger travel in one revolution of the wheel?

Answers

You need to find circumference, so you would multiply the diameter by pi. So your answer is 212pi feet or 666.02 feet

Helppp!!!!
Xxxxxxxxx

Answers

Answer:

C

Step-by-step explanation:

55+35= 90

180-90=90 which means

90/3 is 30.

Answer is C

The question is in the picture below^^
Giving brainliest so no links
____________________________________________________________________
༶•┈┈⛧┈♛ ♛┈⛧┈┈•༶༶•┈┈⛧┈♛ ♛┈⛧┈┈•༶v༶•┈┈⛧┈♛ ♛┈⛧┈┈•༶----

Answers

Answer:

a.) 2 in.

Step-by-step explanation:

Answer:

A is your answer

Step-by-step explanation:

if you look you can see were the line stops. your welcome

Other Questions
How many sides does a polygon have? In which biome would you expect to find the greatest biodiversity? aTundra bConiferous Forest cDesert dTropical Rain Forest In warm climates, a vapor barrier is placed on the exterior side of the insulation, and in cold climates it is installed on the interior side of theinsulation. Which of the following explains this placement of the barrier?The barrier should always be placed on the side opposite from where the water condenses.The barrier should always be placed on the side opposite where rain or snow hit.The barrier should always be placed on the side where rain or snow hit.The barrier should always be placed on the side where the water condenses A boat covers 25 km upstream and 44 km downstream in t hours. Also, it covers 15 km upstream and 22 km downstream in 5 hours. Find the speed of the boat in still water and that of the stream. can u help me learn Spanish how do u know if u have a sprain or broken foot how would I word that it is being doubled in size?The question is how did D get to E. Apply the problem-solving techniques to solve the followingproblem.Population decrease In 1990, a rural area had 1200 birdspecies. If species of birds are becoming extinct at the rate of1.5% per decade (10 years), how many bird species will there beleft in theyear2020? Which statement describes a homogeneous catalyst?doIt is in a gaseous phase only. It is in the same phase as the reactants.It is completely consumed by reactants.It forms different products than the uncatalyzed reaction forms. how could advances in astronomy help muslims worship their faith better? The First Tuesday1. As a dying man, Morrie still reads the news. What are your thoughts on this? Do you find it necessaryor a waste? Explain. Which event is most likely to be the climax of a story? I don't know what the answer is. Please Help Guys please could you answer this question I'm unable to solve this assignment Arnold noticed that the bag of frozen poultry he picked up at the supermarket has a thin layer of ice on the package. What should Arnold do?A.He should do nothing; all packaged foods are safe for consumptionB.He should do nothing; all frozen items have a layer of ice on themC.He should reject it because it may not be safe for consumptionD.He should reject it because it indicates that the poultry is not fresh Complete with the correct pronoun. When there is more than one answer, separate the answers with a comma and a space.Yo___envo correos electrnicos a mis amigos y ellos___envan correos a mtambin.HELP! Arely les __________ (bailar, comer, pagar) en efectivo a las vendedoras. need help How much did the price of a barrel of oil increase during the embargo?A. stayed the sameB. tripledC. quadrupledD. doubled When electrons are moving it is calledA fieldB electricityC frictionD attraction HELP DUE ASAP PLEASE!! X.Y.103 4 5 6 7 8 9SELECT ALL THAT APPLY for the box plots above.the first quartile has a greater spread for box plot x than the spread in the first quartile forbox ploty25% of the data is greater than 7.5 for box plot x and 50% greater for box plotythe medians have the same value for both box plotsthe median for box plot x has the same value as the lower quartile of box ploty