Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8
1. Isolate x in the first equation:
2. Substitute the value for x into the second equation:
3. Solve for y:
4. Substitute y into either original equation:
5. Write the solution as an ordered pair:
x = 7 – 3y
2(7 – 3y) + 4y = 8
14 – 6y + 4y = 8
14 – 2y = 8
–2y = –6
y = 3
x + 3(3) = 7
(
,
)
Answer:
x + y = 1
Explanation:
X + 3y = 7
2x + 4y = 8
2x - x = x (1x)
4y - 3y = y (1y)
8 - 7 = 1
x + y = 1
Answer:
hey did u ever get the answer to this cause im currently stuck on it lol
Explanation:
Where could convection currents form?
in a sand dune
on a pavement
in the atmosphere
in outer space
Answer:
atmosphere
Explanation:
the process of warm air raising and forming clouds
Convention current happens through transfer of energy in the atmosphere.
What is convention current?Convection current involves the movement of energy from an object to another object.
Energy could move from the atmosphere through sunlight to other source such as solar panel.
Therefore, convection currents form the atmosphere.
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Describe About Earthquakes answer ASAP for the brainliest
Answer:
Earthquakes are caused by fault lines.
Explanation:
The continents are on massive tectonic plates the are constantly shifting because of the movement of magma underneath them. When the tectonic plates rub against each other, or collide with each other, it creates movement that we know as earthquakes. The reason why we feel earthquakes is because of the sudden energy release which causes seismic waves. One famous fault if the San Andreas fault, located in California. That is the reason why earthquakes are common in California (because it is located right next to a fault line).
Answer:
Explanation:
Earthquakes are rubbed against eachother and can cause lots of damage to the environment and people, the earthquakes in california can be very dangerous and can hurt a lot of people due to the mass population and density
the explorer __accurately mapped the coasts of europe and north ameerica
Answer:
Piri Reis
Explanation:
Assess the effectiveness of using National Parks as a strategy to protect the taiga.
Need this really ASAP as this is due TODAY! Thank you so much and will award brainliest answer.
Answer:
National parks have been quite effective at protecting the wildlife, traditions, and landscape of the arctic taiga. In the US, the taiga is found around the state of Alaska, where the climate is cold, and not suitable for the growth of some plants. The taiga, however has a unique landscape, home to many species of animals, and first nation peoples, who's traditions and heritage must be preserved. One such example is in Alaska, Wrangell Saint Elias national park protects one such area of the taiga. There, wildlife have flourished due to preservation efforts to protect the taiga, and its inhabitants- which include many native americans.
Drag each label to the correct image.
Match the ancient scientists to the works they are known for.
Pythagoras was known for creating the Pythagorean Theorem, which was named after him. The Pythagorean Theorem uses the equation [tex]a^2+b^2=c^2[/tex] to find the sides of a right triangle.
Pythagoras = photo 2
Ptolemy believed that Earth was at the center of the universe, not the Sun.
Ptolemy = photo 1
Archimedes was known for discovering the law of hydrostatics, which says that a body put in fluid loses weight equal to the weight of the amount of fluid it displaces.
Archimedes = photo 4
Eratosthenes was famous for making the first measurement of the size of Earth.
Eratosthenes = photo 3
Answer:
ptolemy- picture 1
pythagoras- picture 2
eratosthene- picture 3
archimedes- picture 4
Explanation: plato/edmentum answer.
hope this helps! :)
The Mid-Atlantic state that does not border the Atlantic Ocean is New Jersey. true or false
Answer:
true. I think it's helpfull
(c) Why is silting s problem?
Explanation:
Siltation is the flow of silt and sediment into the river. The particles become suspended in the river and accumulate on the riverbed. Siltation causes problems for fish, mussels and other aquatic organisms. According to Auerswald, Moosach is no longer a river as much as it is a canal-like channel.
(2x + 5) + (x + 4) =
Answer:
(2x + 5) + (x + 4) = 3x + 9
Explanation: Hope this helped you!
Simplified or Added they both equal the same thing.
Answer:
3x+9, 3(x+3)
Explanation:
The parentheses in the equation are misleading because according to the commutative property, we can add the numbers in any order we want
We can start by adding the 2x and x to get 3x
Then we can add 5 + 4 and get 9
3x+9
If you want to go even further, we can factor out a 3
3(x+3)
compare tropical rainforests and mangroves in their
adaptations to environment
Answer: Tropical rainforest have smooth and thin barks because there is no need for protection against dry or cool conditions. However, mangrove forests have no adaptation to climate or environment. ... Mangroves also have drip tips on their leaves
Explanation:
Which of the following examples best illustrates absolute location? A. It’s next to the World Cup stadium. B. It’s between Siemert Road and Beit Road. C. It’s in Gauteng, South Africa, at 26.2° S, 28.1° E. D. It’s near Johannesburg, South Africa.
Which of the following examples best illustrates absolute location?
A.
It’s next to the World Cup stadium.
B.
It’s between Siemert Road and Beit Road.
C.
It’s in Gauteng, South Africa, at 26.2° S, 28.1° E.
D.
It’s near Johannesburg, South Africa.
The correct option is C. It’s in Gauteng, South Africa, at 26.2° S, 28.1° E which is an example best illustrates the absolute location.
The exact location of a place on Earth is known as its absolute location, which is frequently expressed in terms of latitude and longitude.
What is the importance of absolute location?Absolute location is crucial for geolocation services like Uber and search engine Maps. Developers of mobile applications have even urged for the addition of a height dimension to absolute position, which would help distinguish between different floors of buildings located at the same longitude and latitude.
An exact position on Earth or in another predetermined space is described by an absolute location. A relative location uses another well-known property as a reference point to define where something else is.
Thus, C is the best choice. The absolute position is best shown by the fact that it is in Gauteng, South Africa, at 26.2° S and 28.1° E.
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