👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves making the coefficient of one of the variables to be equal in all the equations that make up the system, in order to eliminate the variable using subtraction (or addition as the case may be). The coefficients can be made equal by multiplying the entire equation with a number which when multiplied to the coefficient of the variable to be eliminated gives the LCM of the coefficients of the variable to be eliminated in all the equations. Then we solve for the remaining variable(s).

After we have obtained the solution{s} for the remaining variable(s), we substitute the obtained solution into any of the original equations to obtain the solution of the eliminated variable.

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✅Solve a System of Equations Using Substitution | Learn About
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✅Solve a System of Equations Using Elimination | Learn About
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✅Solve a System of Equations Using Elimination | Easy
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✅Solve a System of Equations Using Elimination | Medium
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✅Solve a System of Equations Word Problem
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#Systemofequations #Algebraically #brianmclogan

Learn the parts of the microscope and how to focus a compound microscope.
Using a compound microscope can be fun and unlocks a whole new world.
In this video I point out a couple of tips and tricks you can use to help you use a microscope properly.

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The Salton Sea is the largest body of water in California, home to the second most diverse group of birds in America and it exists by accident.
Another great video on the Salton Sea: https://youtu.be/otIU6Py4K_A
I used archive from this video.

Music by Kevin MacLeod, www.incompetech.com ‘Mirage’, ‘Hyperfun’, ‘Marty Gots a Plan’, ‘Past the Edge’

#MathIsSimple #Grade6 #Expressions #Equations


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#Decimals #Fractions #Simplify #math #algebra #takingthepainoutofmath

I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there. The first time I heard about shade balls the claim was they reduce evaporation. But it turns out this isn't the reason they were introduced.

Huge thanks to LADWP for arranging this special tour for me. Next time let's put the GoPro on the submersible!

The balls are made of high density polyethylene (HDPE) which is less dense than water so they float on the surface of the reservoir even if they break apart. They are 10cm (4 inches) in diameter and contain about 210ml of water. So the main reason they are on the reservoir is to block sunlight from entering the water and triggering a chemical reaction that turns harmless bromide into carcinogenic bromate. This effect occurs with prolonged exposure to bromate so regulators insist that levels be kept below 10 microgram per liter on average over a 12 month period.

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Thanks to:
Las Virgenes Reservoir for footage of initial shade ball dump
Euro-Matic for bird into jet-engine footage

Researched and Produced by Casey Rentz

Animations by Maria Raykova

Music from http://epidemicsound.com "Colorful Animation 4" "Seaweed"

And from Kevin MacLeod "Marty Gots a Plan"

This is an educational video about the science of water quality.

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Welcome our new video: Solving Word Problems for Grade 1 | Math | Kids Academy

Solving word problems are a very important lesson and a basic concept for kids. It is important for the kids to learn it because this becomes very important in later studies.

Now to understand the world problems you need to use the child’s imagination.
As a beginner lesson, we will only start with the basics. We will match the world problems with pictures according to the description in the world problem. As the kid reads the world problem he will match the information with the pictures.

For example, if the world problem says that there are 10 apples and 2 oranges, the kid will match the first part of the problem with 10 apples and the second part with 2 oranges. Then, of course, they will match the answer for example if it’s a multiplication word problem for kids the answer to this word problem would be 20.

The world problems help the kid to have a better understanding of words and are better able to make logical sense out of words. More and more practice will make this concept easier and clearer.



Kids Academy, will help your child practice and apply basic math skills through fun puzzles and mini-games in our application.

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Sorting by different categories can be a tricky subject to teach, but this colorful video makes it simple! Sort by color, shape, and size with "I Can Sort!"

See more videos like this and get 30 days FREE on our educational streaming site https://heidisongs.tv. Or subscribe to our YouTube channel with new videos coming soon!

HeidiSongs videos are a fun way for kids to learn sight words, colors, numbers, and more! They are a fantastic tool for homeschooling and online learning. We recorded some original music for kids so that children can learn and have fun at the same time!

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The nucleolus is a region in the nucleus that contains RNA. See this dark spot in the onion cell? That is the nucleus, one of the few organelles you can see with an inexpensive microscope. If you look carefully at the nucleus you may see a dark spot. This is the nucleolus and it is found in eukaryotic cells.
What is the function of the nucleolus?
It has been described as the brain of the nucleus and contains RNA.
Transcript
http://www.moomoomathblog.com/....2020/08/what-is-nucl

Onion Cell Picture
https://www.flickr.com/photos/kaibara/3839720754

Counting Songs - Learning Addition
Introducing Miss Selma who is teaching Charlie, Lottie and Philip
what happens when you add numbers together. Enjoy.

Our website www.nurserytracks.com has the lyrics for each song, as well as FREE colouring pictures.

Copyright information: Words and music copyright Nick Hall. Arrangement Nick Hall.

I use a factor tree and an LCM GCF chart to find the least common multiple of 9 and 15 along with the greatest common factor of 9 and 15

Cell basics- Lysomes
What are the properties of a lysosome?
Lysosomes are organelles found inside plant and animal cells, but not in bacteria cells.
Updated Version
https://youtu.be/jvfDdZtD5SQ

They are important because lysosomes help break down old cell parts and and digest materials brought into the cell. They might be used to digest food or break down the cell when it dies.
Lysosomes have a single membrane and are filled with digestive enzymes.
A lysosome is created at the Golgi apparatus.
The proteins of the lysosome are created at the rough ER and are packed in a vesicle that is transported to the golgi apparatus. The golgi apparatus uses these proteins to make digestive enzymes and creates a vesicle that pinches off.
This vesicle is a lysosome
Lysosomes are found in the cytoplasm.
When materials are brought into the cell lysosomes can attach to these objects and begin to break them down.
Lysosomes will also break down other organelles like mitochondria if the cell does not have any food or the mitochondria is working improperly.
Lysomes will even digest bacteria that enters the cell.

-~-~~-~~~-~~-~-
Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"
https://www.youtube.com/watch?v=f3bsg8gaSbw
-~-~~-~~~-~~-~-
*
*
For more Life Science videos and summaries see,
http://www.moomoomath.com/Midd....le-School-Science-an

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WORLDWIDE SHIPPING IS AVAILABLE!

Getting to space is incredibly hard, expensive and needs a lot of resources.
A more efficient way to get there is a Skyhook (or Spacetether), an ever rotating cable with a counter weight, that catapults spaceships from earth orbit into the depths of space.


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How we can add numbers going across as a number sentence, or down as a stacked equation. Using pictures and models to write addition problems and find a sum. Word problems are included as examples in this lesson.

Grade 1 Math Playlist
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Blend words list for kids | Kids Vocabulary | Learn English words for kids | @AAtoonsKids

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Matter | Three State of Matter for Kids | Science for Kids | Solid, Liquid, Gas | @AAtoons
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Chapters
00:00 Introduction
00:09 What is the matter?
00:35 Solid, Liquid, and Gas.
00:44 Solid
01:23 Liquid
02:23 Gas

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Learn to multiply by two -- all the way from 1 to 100 -- with help from this new math education song by KLT

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KLT educates kids about the solar system and geography through music and animation with a fun and unique approach to learning! Join us for weekly videos about geography, stars, space, planets, shapes, and more educational videos . Our videos make learning about the world so much fun!

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Repeated Addition using Arrays | 2nd Grade Math | Kids Academy

Do you have a 2nd grader frustrated with math? Some kids just need more practice, or even a new strategy to understand it better. If your child needs a new way to make math easier, or even if your child just needs the extra practice, this video focuses on teaching addition using arrays and repeated addition. 2nd grade can be a tricky year in math class, so let’s demystify the process using an easy-to-understand video tutorial!

Learning Math, Visually

Watching video tutorials are a great choice to help your child master tricky math concepts. This video offers your child:

• A new strategy that can be used to understand and complete addition problems
• Visual learning, using groupings of pictures to demonstrate the concept
• Repetition to make addition easy to learn

Math instruction has come a long way since we were kids. Using video tutorials is a sure way to introduce your child to new techniques, and drive home important concepts to lay a foundation for math success!

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Guessing the Fruits name | Fruits Name | Fruits Name Quiz | Picture Quiz | Quiz Time | @AAtoonsKids
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Related Video Links

Guess the Insect - https://youtu.be/GzKVJK4dv7U

Guess the Action Words - https://youtu.be/CRvB4wrOins

Guess the Vegetable Name - https://youtu.be/jX21QLBnZ0U

Guess the Flag - https://youtu.be/fUmBCKZKQnU

Guess the Logo - https://youtu.be/GQVZyy5ol6U

English Quiz - https://youtu.be/ps59tnyzgV8

Identify the Images - https://youtu.be/mRkn3J0tpno

Fruits Veg Flowers animals - https://youtu.be/Nj3XEkH8rgY

Maths Quiz - https://youtu.be/OQjkFQAIOck

Blend Words - https://youtu.be/Ol2oHs6_sRQ

Jumble Words - https://youtu.be/QRPHv0YyluI
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Banks are a riddle wrapped up in an enigma. We all kind of know that they do stuff with money we don’t understand, while the last crisis left a feeling of deep mistrust and confusion. We try to shed a bit of light onto the banking system. Why were banks invented, why did they cause the last crisis and are there alternatives?


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