Solve the system. x−5y=5 2x−9y=7
Answers
Answer:
x = 10 | y = -3
Explanation:
2x−9y=7
x−5y=5
Solve by elimination
2x−9y=7
2x−10y=10
y = -3
x-5(-3) = 5
x = 10
Explain: set x= 5 + 5y
=> 2x - 9y =7
<=> 2.(5+5y) -9y= 7
<=> 10 + 10y - 9y= 7
<=> y= -3
Replace y= -3 => x= 5+5y
<=> x= -10
To test you can replace x,y in the original system.♀️
Related Questions
The pre-approved amount of money that a bank is willing to lend a credit card holder is the credit __________. A. balance B. rating C. history D. limit Please select the best answer from the choices provided A B C D
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Answer:
A .credit balance
I believe that's the answer
The credit limit.
Without a doubt, distance learning will present new challenges for us. What will you do when you face something that is challenging for you in our distance learning
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What is the first thing you should comment on when you review a peer’s report?
Answers
Though this varies with school curriculum and other factors so the answer isn’t clear to date or a fact
Hope this helps!
WHAT IS THE POWER LEVEL OF NAPPA AND VEGETA'S SAIBAMEN?
Answers
Answer:
Saidamen has the power level 1200 and nappa is 4000 and vegeta's is 18000
Explanation:
Answer:power level 1200 and nappa is 4000 and vegeta's is 18000
Explanation:
18 POINTS and BRAINLIEST !!!
Subject: AVID
Do you think adult, using slang in the workplace will become more common in the coming years? Why? Use evidence from the text.
Answers
Sorry if thats not what its asking. But you should be able to get the general idea at least!
I NEED THIS ASAP!! THERE IS MORE THAN ONE ANSWER!!!!
Which of the following are examples of career clusters? Select all that apply.
Real Estate
Arts, A/V Technology, and Communication
Education and Training
Finance
Government and Public Administration
Answers
Answer:
c
d
e
Explanation:
Please hurry
Dependent vs. Independent Variables
DIRECTIONS: Please list the dependent and independent variables in each of these examples.
A scientist wants to know if the amino acid thyroxine will affect weight gain in mice. He gives mice varying amounts of the amino acid and measures their weight for 3 months.
George wants to know if different colors of light will affect plant growth. He puts plants under different colors of light and measures their height for 2 months.
Lucy wanted to see if her goldfish released more ammonia when give tropical fish food or goldfish food. She separated her 30 goldfish into two groups and put them in separate tanks for this experiment. She then measured the ammonia content in each aquarium for 6 weeks.
David wanted to know if his elodea plants would grow better in warm or cold water. He divided the plants into four separate tanks with varying water temperature. He then measured plant height and counted the number of plants for 4 weeks.
Jessica wanted to see if tadpoles grow more quickly if they’re given a protein supplement. She divided 100 tadpoles of the same age and species into 2 groups. She gave one group the protein supplement with their food, while the other group she fed food only. Each week, she counted the number of tadpoles at various stages of development until they were mature frogs.
Answers
2. dependent: plant’s height. independent: color of lights
3. dependent: amount of ammonia released.
independent: type of fish food
4. dependent: plant height. independent: temperature of water
5. dependent: tadpole’s development
independent: protein supplement or not
To be brainliest:
. Answer this question first.
. Answer this question correctly.
-Side note- This is science but I dont know how to set it.
IGNORE THE YELLOW LINE!
Answers
Answer:
I believe it's B
Explanation:
please HELP MEEE OUT
Answers
Answer:
Answers are 1 2 and 6
Explanation:
looked it up
Answer:
1, 3, 5
Explanation:
They make the most sense then I researched each question (quickly) and they all checked out.. hopefully you can retry it and hopefully there right on your quiz/test:)
Examine this image. The title of the image is, Learning model based on the studies of Jean Piaget and Lev Vygotsky Distinct ways to gain knowledge, negative scenario. In a 100+ word summary, explain how Vygotsky's model of learning (the sociocultural theory)
is represented in this image. Define what the sociocultural theory is and lastly if you
believe this theory is valid or not.
Answers
Answer:
Vygotsky's theories stress the fundamental role of social interaction in the development of cognition (Vygotsky, 1978), as he believed strongly that community plays a central role in the process of "making meaning."
Unlike Piaget's notion that childrens' development must necessarily precede their learning, Vygotsky argued, "learning is a necessary and universal aspect of the process of developing culturally organized, specifically human psychological function" (1978, p. 90). In other words, social learning tends to precede (i.e., come before) development.
Vygotsky has developed a sociocultural approach to cognitive development. He developed his theories at around the same time as Jean Piaget was starting to develop his ideas (1920's and 30's), but he died at the age of 38, and so his theories are incomplete - although some of his writings are still being translated from Russian.
No single principle (such as Piaget's equilibration) can account for development. Individual development cannot be understood without reference to the social and cultural context within which it is embedded. Higher mental processes in the individual have their origin in social processes.
Explanation:
Does anyone know how to get rid of pc accelerate pro I got it after clicking on a link on the hub
Answers
Use g00gle or sa4fari I don’t know
Answer:
why don't you just search it up or go in ytand watch out for certain links your click on
Which of the following lines of poetry most clearly reflects a tone of happiness?
I WILL GIVE BRAINLIEST
A "Spoken slightly through the nose, with a whistle at the close."
B "And you discover in an old man's eye some sparkle of the days gone by."
C "And, as the trail choked with weeds, fade from the memory of the land."
D "My heart is like a singing bird whose nest is in a water'd shoot;"
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Who all here is a member of the Church of Jesus Christ of Latter-Day saints?
Answers
What should I pantomime, or mime?
Answers
Answer:
I guess go with pantomime
Explanation:
I’ve done it before
_____ = momentum divided by mass, please answer fast, all I know is it is 5 letters and starts with S please help, first gets brainliest!
Answers
Answer:
Its not it is velocity
Explanation:
PLEASE HELP DO SOON, first to answer gets brainliest
Answers
Answer:
you have to shade in the 1,5,9,10 and then leave the rest blank
Explanation:
The expressions are answered when it is colored
Define Shia Muslim? please help!
Answers
Answer:
1 : the Muslims of the branch of Islam comprising sects believing in Ali and the Imams as the only rightful successors of Muhammad and in the concealment and messianic return of the last recognized Imam — compare sunni. 2 : shiite.
Explanation:
I hope this helped, love Ashley <3
Calcium chloride is used to make pickles. The calcium atom transfers electrons to chlorine atoms, leading to the formation of chemical bonds. Calcium chloride contains bonds. Copper atoms are used to produce pennies. The copper atoms in pennies share many electrons. Pennies contain bonds. Hydrochloric acid is the main acid that helps break down food in the stomach. The atoms of hydrochloric acid share electrons. Hydrochloric acid contains bonds.
Answers
Answer:
If it is a multi select question, it is:
1. Calcium Chlorine (ionic)
2. Copper/Pennies (metallic)
3. Hydrochloric Acid (covalent)
Explanation:
if this isn't the answer im sorry...
In this question, you have to find out the nature of each compound:
Calcium chloride is an ionic compound.The composition of calcium and pennies demonstrates a metallic bond.Hydrochloric acid is a covalent compound. What is meant by a Chemical bond?A chemical bond may be defined as a type of attraction that is significantly present between atoms, ions, or molecules that authorizes the formation of chemical compounds. In a more simple sense, it may be characterized as a process through which different atoms in a molecule are held together.
Calcium chloride is an ionic compound because the calcium atom transfers electrons to chlorine atoms, leading to the formation of chemical bonds. Whereas the attraction between copper and pennies illustrates a metallic bond because copper atoms in pennies share many electrons.
While the atoms of HCl share electrons in order to break down food in the stomach. So, this reveals an example of a covalent bond.
To learn more about Chemical bonds, refer to the link:
https://brainly.com/question/819068
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FLVS users only!!!
What are your opinions on Increasing the minimum driving age.
Do you agree of disagree and why?
Answers
Your thoughts on the social dilemma on netflix
Answers
Answer:
BEST SHOW EVER !!!!
Explanation:
THERE SHOULDN'T BE AN EXPLANTION!!
December 7th, 1941 was when Japan suprise attacked________________, bringing the US into WWII.
Responses
Pearl Harbor
X-Day
Hiroshima
D-day
I NEED IT ASP!!!!! PLS RIGHT IN 5 seconds
Answers
Answer:
Pearl harbor
Explanation:
Shortly after we were roped into the war
That’s what brought the US into WWII against Japan
Please help really hard math question that is due today!
Answers
Answer:
A
Explanation:
y=3x-12
8^x=(2^3)^x=2^3x
substitute --> 2^3x / 2^(3x-12) = 2^3x / (2^3x /2^12) = 2^12
helpppppp mehhhhhhhhhh
Answers
What are some common acids and bases?
What is an ion?
What ions are produced from acids and from bases?
List at least four characteristics of acids.
List at least four characteristics of bases.
How is salt created?
Give examples of how salts are used.
List at least four characteristics of salts.
What is the purpose of the pH value?
Answers
Answer:
1. Acetic acid (CH3COOH): vinegar, acetate.
Acetylsalicylic acid (HOOCC6H4OOCCH3): aspirin.
Ascorbic acid (H2C6H6O6): vitamin C.
Carbonic acid (H2CO3): soft drinks, seltzer water.
Citric acid (C6H8O7): citrus fruits, artificial flavorings.
Hydrochloric acid (HCl): stomach acid.
2. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
3. In the chemistry, acids and bases have been defined differently by three sets of theories. One is the Arrhenius definition, which revolves around the idea that acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (H+) ions while bases produce hydroxide (OH-) ions in solution.
4. pH < 7.
Sour taste (though you should never use this characteristic to identify an acid in the lab)
Reacts with a metal to form hydrogen gas.
Increases the H+ concentration in water.
Donates H+ ions.
Turns blue litmus indicator red.
5. Bitter taste (opposed to sour taste of acids)
Slimy, or soapy feel on fingers (Slippery)
Many bases react with acids and precipitate salts.
Strong bases may react violently with acids. ...
Bases turn red litmus paper blue.
Bases are substances that contain metal oxides or hydroxides.
6. The salt comes from weathering and volcanic activity. The ocean formed very early on in Earth history, as soon as water comes into contact with rock then weathering processes start – these leach (dissolve) the soluble elements preferentially out of the rock (sodium, calcium, magnesium, potassium etc).
7. Magnesium Sulfate, It is the product of the chemical reaction between magnesium hydroxide and sulfuric acid. In natural medicine, Epsom salts can be used as a laxative. A solution of the salts is used in many homes as a soak for foot aches, bruises and sprains. Some people enjoy using the chemical in their bath water.
8. Salt is white, odorless and it has a salty taste.
All potassium (K), ammonium (NH4+) and sodium (Na) salts are soluble in water (H2O).
Nitrites, nitrates, and bicarbonates can be dissolved in water.
All metallic oxides, metallic carbonates, hydroxides, phosphates, and sulphides are insoluble in water.
9. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.
Hope this helps!
Anyone what to pay among us
Answers
Answer:
nooooo jkjkjkjkjkjkjk
Explanation:
The majority of the Russian people live in the Fertile Triangle in the West.
Responses
I NEED IT ASP!!!!!! I NEED IT NOW I'M GIVING Y'all 10 points
True
or
False
Answers
Answer:
True!
Explanation:
Most of the people in Russia live in the part of Russia that is in Europe, or; the Fertile Triangle.
If you had $10 million in the bank, what would you be doing differently? Please try to include as much detail as you can.
Answers
Make do of what is above
Some of the possible ways to use $10 million for investment would be:
Invest in stocks and cryptocurrenciesPay off mortgage and other credit loansStart up a businessWhat is an Investment?This refers to the putting of money or asset into a particular thing or business with the aim of getting returns on the money.
Hence, we can see that for a person that has $10 million in the bank, there are different ways to spend the money, but to make investments, the above steps can be a good way to start.
Read more about investments here:
https://brainly.com/question/25300925
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In this activity, you're going to write a SUMMARY paragraph for this lesson over Measuring and Graphing Motion. In your summary, you will use the following keywords: Graphs X axis, Y axis Motion Speed Distance-time graph Position-time graph Speed-time graph Include examples for the types of graphs and how they tell a story about how something moves. Click the reply button below and type your response or copy and paste your pre-written response to Submit your summary.
Answers
Answer:
In this lesson I have learned about graphs that includes distance-time graph, position-time graph, and speed-time graph. When using the graphs, for example on a distance-time graph the distance would be x-axis and time would be y-axis. The motion of an object on a position-time graph would have a ——————— dotted line or a ____________ straight line. The speed of an object would be in a speed-time graph. You would have the speed to find the distance.
Explanation:
Hope this helps xoxo
Answer:
In this lesson I have learned about graphs that includes distance-time graph, position-time graph, and speed-time graph. When using the graphs, for example on a distance-time graph the distance would be x-axis and time would be y-axis. The motion of an object on a position-time graph would have a ——————— dotted line or a ____________ straight line. The speed of an object would be in a speed-time graph. You would have the speed to find the distance.
:)
How many valence electrons would atoms of the element boron (B) have?
Answers
Answer:
3
Explanation:
The boron atom has only six electrons in its outer shell, leading to an electron deficiency. This molecule has 12 valence shell electrons; 3 each from the B atoms, and 1 each from the six H atoms.
Answer:
3
Explanation:
Boron has 3 valence electrons.
I NEED THIS ASP!!! 1:00 I GIVE OUT 70 POINTS
What is one of the functions of the human skeleton?
a
obtaining oxygen
b
producing blood cells
c
breaking down nutrients
d
releasing hormones
Answers
Answer: I think it's the letter b.
Explanation: mere guess