The aim of the video is to show how to reduce a fraction by factoring out prime numbers that are common to both the numerator and the denominator. The example shown in the video is 27/21. The number 27 can be achieved by multiplying 3 by 9 and the number 21 is the result of 3 multiplied by 7. The common factor, therefore in both the numerator and the denominator is 3. 3 on the top divided by 3 on the bottom is 1 and so this can be removed without affecting the value of the fraction, leaving 9...
This video is about Level 2 atomic concepts, specifically the Pennium Lab. This helps you understand how atomic masses are derived for the periodic table. This teacher demonstrates how to do the calculation. He first reviews the Isotopes as they are different masses of the same type of atoms. He uses chromium as his example. It has a different number of neutrons in the nucleus. Using the equation, it could have either 26, 28, 29 or 30, with its 24 protons. So he subtracts the atomic number fr...
Tearing yourself to pieces trying to format fractions in Microsoft Excel? Give this video tutorial from everyone's favorite YouTube Excel guru, ExcelIsFun, your undivided attention. With it, you'll learn how to format fractional values via the custom number formatting tool in the number tab in the format cells dialog box. This video discusses proper, improper, like, unlike and mixed fractions.
Having trouble solving fraction word problems? Give this video tutorial from YouTube Excel guru, ExcelIsFun, your undivided attention. With it, you'll learn how to format fractions as decimals with up to 15 places, come to understand divisibility rules for numbers 1-9, and work with a number of real-world examples.
An atom is a basic unit of matter consisting of a dense, central nucleus surrounded by a cloud of negatively charged ions. The nucleus itself is a mixture of positively charged protons amd electrically neutral neutrons. Different groups of elements have respective atomic numbers. You can use the periodic table as a tool to draw atoms of elements. The periodic table is organized into periods, groups and families. This video is a tutorial that reviews the subatomic particles found in an atom. I...
This video explains how to convert fractions to decimals by providing a good example. 1. To better explain the notion draw a box divided into sections to represent the 1 whole. 2. In this example the fraction used is 7/10. So, you have to color in 7 out of the 10 sections that make up the box. 3. To make the conversion to a decimal is now even simpler. Since not all the boxes are shaded the number must be less than 1, so start by writing 0. 4. The next step is to check the number of boxes you...
This series of videos demonstrates how to do conversions of recurring decimal numbers to fractions. In a few simple steps, you'll be able to transfer these repeating numbers to simple fractions.
A Teacher shows us how to graph compound sentences with the word "or" in them. These graphs will have arrows pointing out in different directions. On the number line draw arrows from the numbers in your compound sentence. So for example if after solving a problem with inequalities the problem has two possible answers that it could be, you would record both of the answers that it could possibly be. For our example we will use x is greater than seven, and x is less than three. You would then dr...
This video will teach and show you how to see the ghost mines in Minesweeper. In order to do that, you need to follow these instructions: 1. Click the Start Menu button and select the Games folder. 2. Now open the Minesweeper and start a new game. 3. Now click anywhere on the screen and a space will clear. Each square has a number, and each number represents the number of mines that the square touches. So that is basically it. If you follow these instructions and steps, you will be able to se...
In this video, they demonstrate how to factor a trinomial. A trinomial is a polynomial with a quadratic term in the form, ax^2+bx+c. To factor this polynomial first multiply the a and c term. You must fine two numbers that multiply to a*c and add up to b. Once you have figured out the two numbers you place the two numbers (D and E for example) in the equation (1/a)(ax+D)(ax+E). It takes a bit of practice to be good at deciding what D and E are, but the best way is to make sure that D*E = a*c ...
This video shows the way to fold a fitted sheet for maximum storage. Folding a sheet can save a lot of storage space. The time taken for folding the sheet is less than the time taken for searching through unfolded sheets to find the right match. Start by holding the sheet lengthwise with the right side towards your body. Fold corner number one over corner number two. Slide down the edges and tuck corner number three and four in. Straighten the edges and place it on the table. Fold the sheet i...
Follow along as we learn how to grow healthy tomato plants. -When you plant tomato plants you need to get a strip of tinfoil, about two inches wide, and wrap it around the stem.
This how-to video describes how to play the game Minesweeper. To begin, simply click anywhere on the board; the narrator suggests the corner out of personal preference. If you remove a group of squares with a single click you can begin working on flagging mines, but otherwise try clicking until you get a workable section. Each successful click will display a number. This number describes how many mines this square is touching. If you feel that you know where a mine is, you can right click on ...
This is a video tutorial on how to simplify square roots. To simplify square roots, one must have the knowledge of splitting numbers into prime factors. For example,12 can be split into 4*3 and further more into 2*2*3. Here we see that all the factors are prime numbers. So the square root of 12 can be written as 2*square root of 3(as shown in the video). The method used in the video is applicable for simplifying any square roots as any number can be split into prime factors. Follow the video ...
This video will show you how to block caller ID on the iPhone 3G. Follow these steps to block caller ID on the iPhone 3G: Go to your settings menu and click on the phone option. Click on the 'show my caller ID option', and turn it ON or OFF. Now your number won't show up if you call someone who you think may want to harass you once they have your number.
This video tutorial will teach you how to format percentage numbers in MS Excel. Excel is a spreadsheet application that allows you to use calculations, graphs, pivot tables and much more to create the spreadsheet you want. You can learn how to avoid common mistakes that occur with formatting percentages and how to set the program to automatically format numbers as you type. This video will guide you through formatting percentages as you learn how to use MS Excel to make spreadsheets.
In this video the instructor shows how to solve logarithmic equations. To solve a logarithmic equation, the first thing you have to do is try to get one logarithmic term if possible. To subtract two logarithmic terms use the formula Log (a) – Log (b) = Log (a/b). Now to get rid of logs, perform exponentiation of the base. Exponentiation of the base is raising a number to the power of the logarithmic term where the number is the base of the logarithmic term. Here the value turns out to be the ...
Even seasoned users of Excel might not know that you can use the COUNTIFS, DCOUNTA, and SUMPRODUCT functions to count the number of entries that fall between the values given by two other cells. Well, you can. And in this Excel tutorial from ExcelIsFun, the 545th installment in their series of Excel magic tricks, you'll learn how to do just that.
In this `Math Made Easy' tutorial the instructor shows how to perform Long Division. He gives a simple four step approach where in the first step he shows to divide the first left most number by the divisor and this gives the quotient. Now he shows to multiply the quotient with the divisor to get a value which is to be subtracted from the original divided number. Now in the third step he shows how to bring down the next digit and finally in the last step he asks to perform the same procedure ...
In this tutorial the author explains of how to find percentages using examples. He explains that x percent of some number y is x multiplied by y and divided by 100. He goes on and explains this concept with numerous examples. He suggests a short cut to movie the decimal point of a number two digits to the left to divide that number by 100. The author demonstrates many more similar tricks and short cuts using which one can easily solve percentage problems. So if you are looking for a good tuto...
This video explains how to calculate percentages in your head. To calculate a percentage in your head, start by breaking the percentage off into smaller units. For example 25% is 10 + 10 + 5. 30% is 10, 10, and 10. Now you have numbers you can easily work with in your head. Find 10% of the number. This is easily done by one of two methods. You can either move the decimal point one place to the left or you can drop the last number. Dropping the last number sometimes gives you an estimate, thou...
In this math tutorial the instructor shows us how to add three fractions with common denominators. He says that it is similar to adding two fractions with common denominator. He tells us first to add all the numbers in the numerator which gives us a new number which is the numerator in our answer and the denominator to our answer is the original common denominator. Now, if the resulting fraction is improper fraction, you will have to convert it into a mixed number. In this video the author sh...
This video shows you how to calculate weighted average cost from a transactional data set using SUMPRODUCT function. It explains things very clearly. If you're working with a very large database transactions the SUMPRODUCT function makes it. It works as text if you do the formatting first and then type the number. We put the number in first and then format as text, then press F2 and ENTER.
This video shows you how to easily convert a fraction to decimals. To convert a fraction to a decimal, you simply divide the numerator by the denominator. You first need to move the decimal point in the divisor to the right until it is a whole number. Then, you have to move the decimal point in the dividend to the right by the same number of places the decimal point was moved. Then divide the new dividend by the new divisor. Please note you may need to move the decimal point two places to the...
Doug Simms online shows how to simplify the radical in a mathematical equation. If you need to brush up on your learning this video can help. Start by finding what is the largest square of the number in your radical. If that number can be solved then solve it, put the answer outside the box and the remainder in the radical. There are some great examples to follow including what to do if your number has a solution, or if there are two factors that your equation can create.
This video is provided by Mr. Binley. Let's learn this with an example, let's say that we want to divide 0.492 by 0.4, the most important thing remember while dividing the decimal numbers is that we need to convert the divisor into a whole number, here we need to convert 0.4 into a whole number. To do this we need to move the decimal to the right, then 0.4 becomes 4, now do the same thing to the dividend (0.492), move the decimal to the same location that we followed while moving the decimal ...
A short video teaching you how to compare fractions. Starting with two fraction like three fourths and two over twelve. You cross multiply the denominator or the bottom number of three fourths which is 4 with the numerator or the top number of the second fraction which is 2. So the 8 that you come up with goes under the two twelfths. Now you do the same for the two fraction this time multiplying the denominator 12 with the numerator 3 coming up with 36. So now you have 36 under three fourths ...
Watch this video to learn how to use factors trees to find the factors of any number.
ExcelIsFun shows you how to detect if a cell has a number or text. The first thing he explains is to find out what are the different types of things that can go into a cell. Next he talks about the use of "OR" and "IsNumber" to make it possible to determine if a cell has a number or text entered into it. The user then explains why certain rows where either "True" or "False". After watching this video, you should be able to determine if a cell is using text or a number.
Essortment teaches you how to understand guitar tabs. There are six lines that represent a string: E, A, D, G, B and E. Numbers are written on the strings representing fret tabs that tell you where to fret on each string. Also learn how to read a cord which is all the numbers placed at the same time. Numbers on top of each other is a string and lined up means to strum. These are the basics to reading a guitar tab so when you see a tab you are able to play and understand.
What is the difference between a F1.8 lens and a F5.6 lens? It's really very simple! F8.1 has a much larger lens, and therefore it allows more light to pass through. There are several benefits in having a larger lens. Number one: The quality of the background is improved. Number two: Your focus speed is faster. Number three: Low light ability is better. F1.8 lens are a professional level. F5.6 lens are the commercial kind. For a higher quality photo, you might consider using a larger size lens.
March Madness—the period when college basketball teams compete for the championship—is a perfect time to throw a party. Learn how to throw the best March Madness party around with tips from Howcast.
Check out this instructional language video to learn how to speak Cherokee! In this lesson, learn how to tell time and review the numbers. This tutorial is great for beginners who want to improve their Cherokee language skills. Practice your Cherokee by learning how to tell time. This video also provides a review of the numbers.
Check out this instructional con video that demonstrates how to bypass a master lock number 17 in this locking picking tutorial. This technique will work on both old and new combination locks. They all use the same mechanism. Learn how to bypass a master lock number 175 with this tutorial con video. Start picking locks like a pro!
While one can achieve a number of realistic vintage keyboard sounds through sample libraries like the Reason Abbey Road Keyboards refill, there's no beating the genuine article. If you find a vintage keyboard, however, it may need any number of repairs to get it sounding like it should. In this how-to, you'll learn a few quick tips for getting rid of electrical hum on a Wurlitzer 200 Electric Piano. Take a look!
While one can achieve a number of realistic vintage keyboard sounds through sample libraries like the Reason Abbey Road Keyboards refill, there's no beating the genuine article. If you find a vintage keyboard, however, it may need any number of repairs to get it sounding like it should. In this how-to, you'll learn how to get rid of electrical hum in a Wurlitzer 200 Electric Piano. Take a look!
You're in Japan trying to buy something, but don't know how much it costs? Numbers are important to know, and simple to learn. This video language lesson shows the days of the week written in Japanese as well as English while the word is clearly pronounced. Follow along while watching this video Japanese language tutorial and learn how to read and say numbers from one to twelve.
String a tennis racket. Take a look at this instructional video and learn how to lace your mains for a two-piece string job for your tennis racket. To find out where you start is by counting how many grommets you have on your racket. By dividing the number by two, you can determine where to start, top or bottom. If the number you yield is odd, you start from the bottom. If the number you yield is even, you start from the top.
This video shows you a trick you can use in an elevator to avoid stopping at other floors.
How to use the rand function in C++ to create a random number generator.
