If 5x+4y=58 and 3x + 7y = 67 find the value of ( x + y ) ​

Answers

Answer 1

Explanation:

5x + 4y = 58 ....1

3x + 7y = 67 ....2

....1 × 3 both sides of the equation

15x + 12y = 174 ....3

....2 × 5 both sides of the equation

15x + 35y = 335 ....4

.....4 - ......3 both sides of the equation

35y - 12y = 335 - 174

23y = 161

y = 161/23

= 7


Related Questions

which substance carries instructions for building a protein to other parts of the cell
a.) oxygen
b.) protein
c.) ribosome
d.) rna

Answers

The RNA is the answer

Answer:

RNA

Explanation:

EDGE2021

What's better chocolate or candy
btw candy is any expect chocolate

Answers

chocolate 10/10
candy is too sweet and plastic-y
chocolate is not too sweet and tastes good (dark is the best) :))

What is the geosphere?

Answers

any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.

Answer:

a type of tech that helps get the answer to everything


On a corpse, there are beetles and mites, but no flies, ants, or larvae. Which is the correct postmortem interval?

----
8 days
4 days
1 day
19-30 days

Answers

8 days is your answer

Answer:19-30 days

Explanation: I took the test

Choose one of the three environmental change below, and answer the questions:

- Wildfire destroys 500 acres of forest land in Washington

- A hurricane floods wetlands in Louisiana

- A drought means not enough rain for six years in California

4 Questions:

What change did you choose?

Is this a biotic or abiotic factor?

Describe how this change could impact a population in the area

Describe how this change could impact the biodiversity in the area​

Answers

Answer:

A drought means not enough rain for six years in California

Drought means a place with less water less raining and seas over dried for years

What is substance in science?

Answers

Answer: A substance is matter which has a specific composition and specific properties. Every pure element is a substance. Every pure compound is a substance. Examples of substances: Iron is an element and hence is also a substance.

Explanation:

sub·stance

a particular kind of matter with uniform properties.

"a steel tube coated with a waxy substance"

Similar:

material

matter

stuff

medium

What makes human beings separated from animals and plants?

Answers

Answer:

Humans are able to use their brains at the fullest capacity, while plants just do one thing all the time, animals do change a bit, but they mainly live on what they have to do. Humans are able to create things, make languages, and establish religions.

Explanation:

Hope this helps

Describe some sources of water pollution.

Answers

-Oil spills(from ships or boats)

-Marine Dumping

-Sewage (leading into our water supply)

Answer:

oil spills, Chemical Dumping, Landfills close to any water supply systems.

true or false a scientific law is different from a scientific

Answers

Scientific laws and Scientific theories are not the same

Which feature of the nucleus is not clearly shown by the visual analogy?
please do number four4

or more

Answers

Answer:

Explanation:

4.the chromatin is not shown

5. What is another possible analogy that could be compared with the structure and function  of a cell?

The structure and function of an airport control tower could be compared to the structure and function of a cell

6.Vacuoles are membrane-enclosed saclike structures that store materials such as water, salts, proteins, and carbohydrates.

7.Storage of materials and support of the cell

8.Contractile vacuoles pump excess water out of the cell, while other types of vacuoles hold materials inside of cells

10.Lysosomes breakdown large molecules and waste without them clutter could accumulate in the cell, which has been linked to serious human diseases

11.centrioles

12.cilia

13.Ribosomes are small particles of RNA and protein found throughout the cytoplasm. They are involved in synthesis of proteins.

14. Endoplasmic reticulum

15.Ribosomes are found on the surface of rough ER. Smooth ER has no ribosomes on its surface.

16.The Golgi apparatus is like a customization shop in a factory. It puts the finishing touches on proteins before they leave the factory.

17.If the cell manufactures proteins that are normally released to travel to other cells. Those cells would not receive the proteins. The loss of these proteins might cause the "receiver" cells to function poorly.

19.True

20.Like

21.True

22.Contain

23.walls

24.wood

25.regulates

27.Vesicles transport newly synthesized proteins to the Golgi apparatus. After the Golgi apparatus modifies the proteins, vesicles transport the modified proteins to the cell membrane, where they are released.

Which one of these are not protected under
the freedom of speech?
Your right to criticize your mayor.
Your right to criticize the president.
Your right to criticize your senator.
Your right to criticize your boss.

Answers

Answer:

Your right to criticize the president

A scientist is studying the population dispersion of an animal. She is trying to determine whether the population is clumped or uniform.
Describe how having clumped dispersion may benefit a population.

Answers

Answer:

three advantages an individual organism might have by living in a population with a clumped dispersal pattern is...

1. Strength in numbers, if a predator tries to attack, there is a better chance they will be fine

2. Finding a mate, they won't have to go far to find someone, there all here.

3. It will be easier  to find food since there all together.

Explanation:

as for clumped or uniform, this pic should clear things up.

How does a change in pH above or below optimal pH affect enzyme
function?

A. No change
B. Reaction happens faster
C. Enzyme dies
D. Enzyme denatures

Answers

Answer:

[tex]\boxed {\tt D. \ Enzyme \ denatures}[/tex]

Explanation:

Extreme temperatures or pH can denature enzymes.

Enzymes have a very special and specific shape that determines which substrate they can act on. If the pH changes too dramatically, then the peptide bonds holding the amino acids of the enzyme together break.

When the bonds break, the enzyme loses its shape and it cannot function anymore.

So, there is a change, the reaction doesn't happen faster or die. We can eliminate choices A, B, and C. The correct choice is D. enzyme denatures

What is RNA an example of? Answer correctly

A)carbon dioxide
B)water
C)lipid
D)nucleic acid

Answers

Answer:

D)nucleic acid

Explanation:

RNA is the acronym for ribonucleic acid.

Answer: D. Nucleic Acid

Explanation: RNA is riboNUCLIEC acid.

Hope this helps!  

Ü

how are cells tissues organ systems and organisms different

Answers

Answer: Key points. Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. ... Cells make up tissues, tissues make up organs, and organs make up organ systems.

Explanation:

Key points. Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive. ... Cells make up tissues, tissues make up organs, and organs make up organ systems.

Which factor will increase the rate of photosynthesis

Answers

привет их, я не очень понимаю этот квест, потому что я не американец, вы можете перевести его на русский язык, пожалуйста.

Increased carbon dioxide levels

Plants need carbon dioxide to survive. So if you think about it the more it gets of it the better it will grow.

What do the Mitochondria and
Chloroplast have that other organelles
don't have?

Answers

Answer:

DNA

Explanation:

Both organelles possess their own DNA and ribosomes.

The cycle that is critical for the formation of organic compounds is the

Answers

Answer:

Carbon cycle

Explanation:

Answer: Carbon Cycle

Explanation:Hope this helped:))

Can someone answer this question?

Answers

You’re correct! Prokaryotic cells don’t have a nucleus

What is the hypothesis? The higher the temperature of water, the faster an egg will cook

Answers

Answer:

The higher the temperature of the water, the faster an egg will cook

Does this help?

Which of the following is not an extinct species?
A. Dodo
b. Bison
C. Sikkim stag
D. None of these​

Answers

Answer: The answer is Bison

Answer:

Option B and C

Explanation:

Sikkim Stag is an endangered species

some species of the Bison are extinct

Do cells respond to every signal? Explain.

Answers

Answer:

No, they only respond to a signal if they have a receptor that can receive the signal.

Explanation:

Which of the following are the reactants of photosynthesis?
A) Light and oxygen
B) Light and carbon dioxide.
C) Carbon dioxide and sugar.
D) Carbon dioxide and water

Answers

Answer:

The answer is D Carbon dioxide and water

VERY URGENT:
Units that are combinations of two or more fundamental/base units are called (blank) units

Fill in the blank

Answers

Answer:

Derived Units

Explanation:

Answer:

Derived unit

Explanation:

The fundamental unit is Derived unit

what are 3 parts of a nucleotide?

Answers

Answer:

The three parts of a nucleotide are:

- A phosphate group

- Nitrogenous base

- Five-carbon atoms

Explanation:

These are the three parts that make up a nucleotide.

What 3 parts of a plant cell work together to create needed materials like glucose

Answers

mitochondria chloroplast and cell membrane

1.
If we compare photosynthesis and cellular respiration in terms of energy
conversions involved, we observe that in-
А
photosynthesis, carbon dioxide is used to produce energy.
B
photosynthesis, energy is used to produce oxygen.
cellular respiration, carbon dioxide is used to produce energy.
D
cellular respiration, energy is used to produce oxygen.

Answers

Answer:

B is the answer I think

I don't know it's correct or not but I'm trying to help.

15. Is glucose (C6H12O) an organic or inorganic molecule? How can you tell?

Answers

Answer:

Caproaldehyde, also known as hexylaldehyde or N-hexanal, belongs to the class of organic compounds known as medium-chain aldehydes. These are an aldehyde with a chain length containing between 6 and 12 carbon atoms

Glucose ([tex]C_{6}H_{12}O_{6}[/tex]) is an organic molecule. It contains carbon (C) and hydrogen (H), which are essential components of organic compounds.

Organic molecules include glucose ([tex]C_{6}H_{12}O_{6}[/tex]). Organic compounds include covalently bonded carbon and hydrogen atoms. Organic molecules often contain oxygen, nitrogen, and other atoms.

Glucose has six C, twelve H, and six O atoms. Glucose is an organic molecule since it contains carbon atoms and is a crucial component of organic molecules in living things.

Learn more about organic molecule, here:

https://brainly.com/question/14160379

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Which earth sphere do dogs belong in?

A. Geosphere

B. Hydrosphere

C. Biosphere

D. Atmosphere

Answers

Answer: Biosphere

Explanation:

The earth has been composed of various elements and spheres that are defined by air, water, land, life, etc. The dogs belong to the biosphere. Thus, option C is correct.

What is a biosphere?

A biosphere is one of the earth's spheres that has been constituted of other spheres like the hydrosphere, geosphere, atmosphere, etc., and is characterized by the presence of living things and life.

It comprises the ecosystem and the ecological cycles that are the most important element of the sphere. It includes various ecosystems that have various food chains and webs.

The dog is an animal that belongs to the biosphere as it is a living organism that is involved in various ecosystems like the forest, prairies, and arctic zones, and can adapt to varying temperatures.

Therefore, option C. dogs belong to the biosphere.

Learn more about the biosphere, here:

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4. What is the main purpose of cellular respiration in cells? *
A. to obtain energy to use in other processes.
B. to form glucose and store energy in its chemical bonds.
C.
to produce lactic acid in animals to produce alcohol in plants
D. to create carbon dioxide in water

Answers

A . I hope you pass ur test !
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