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additon property of equality
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What does b plus 4b equal?
Your equation cannot be solved. So we simplify using fun algebra! 4b + b = 5b
What is algebraic tiles?
==UsesAdding integers=== '''Algebra tiles''' can be used for adding [[integers]].Kitts, N: "Using Homemade Algebra Tiles to Develop Algebra and Prealgebra Concepts", page 463. MATHEMATICS TEACHER, 2000. To demonstrate this ability you can consider the problem 2+3=?. In order to solve this problem using '''algebra tiles''' a person would group two of the positive unit tiles together and then group three of the positive unit tiles together to represent separately 2 and 3. In order to represent 2+3 the person would then combine their two groups together. Once this step is complete the person can then count that together there are 5 unit tiles, so 2+3=5. Since adding a number with the negative of that number gives you zero, for instance -2+2=0, adding a negative unit tile and a positive unit tile will also give you [[zero]]. When you add a positive tile and a negative tile it is known as the zero pair. In order to show that any [[integer]] plus its negative is [[zero]] a person can physically represent this concept through '''algebra tiles'''. Let us take the example used earlier where -2+2=0. A person would fist lay out two negative unit tiles and then two positive unit tiles, which would then be combined into two sets of zero pairs. These two sets of zero pairs would then be equal to [[zero]].[http://www.phschool.com/professional_development/teaching_tools/pdf/using_algebra_tiles.pdf] Understanding zero pairs allows you to also add positive and negative integers that are not equal. An example of this would be -7+4=?, where you would group seven negative unit tiles together and then four positive unit tiles together and then combine them. Before you count the number of tiles that you now have you would have to create zero pairs and then remove them from you final answer. In this example you would have four zero pairs which would remove all of the positive unit tiles and you would be left with three negative unit tiles, so -7+4=-3. ===Subtracting integers=== '''Algebra tiles''' can also be used for subtracting [[integers]]. A person can take a problem such as 6-3=? and begin with a group of six unit tiles and then take three away to leave you with three left over, so then 6-3=3. '''Algebra tiles''' can also be used to solve problems like -4-(-2)=?. First you would start off with four negative unit tiles and then take away two negative unit tiles to leave you with two negative unit tiles. Therefore -4-(-2)=-2, which is also the same answer you would get if you had the problem -4+2. Being able to relate these two problems and why they get the same answer is important because it shows that -(-2)=2. Another way in which '''algebra tiles''' can be used for [[integer]] [[subtraction]] can be seen through looking at problems where you subtract a positive [[integer]] from a smaller positive [[integer]], like 5-8. Here you would begin with five positive unit tiles and then you would add zero pairs to the five positive unit tiles until there were eight positive unit tiles in front of you. Adding the zero pairs will not change the value of the original five positive unit tiles you originally had. You would then remove the eight positive unit tiles and count the number of negative unit tiles left. This number of negative unit tiles would then be your answer, which would be -3.[http://www.phschool.com/professional_development/teaching_tools/pdf/using_algebra_tiles.pdf] ===Multiplication of integers=== [[Multiplication]] of [[integers]] with '''algebra tiles''' is performed through forming a rectangle with the tiles. The [[length]] and [[width]] of your rectangle would be your two [[factors]] and then the total number of tiles in the rectangle would be the answer to your [[multiplication]] problem. For instance in order to determine 3×4 you would take three positive unit tiles to represent three rows in the rectangle and then there would be four positive unit tiles to represent the columns in the rectangle. This would lead to having a rectangle with four columns of three positive unit tiles, which represents 3×4. Now you can count the number of unit tiles in the rectangle, which will equal 12. ===Modeling and simplifying algebraic expressions=== Modeling algebraic expressions with '''algebra tiles''' is very similar to modeling [[addition]] and [[subtraction]] of integers using '''algebra tiles'''. In an expression such as 5x-3 you would group five positive x tiles together and then three negative unit tiles together to represent this algebraic expression. Along with modeling these expressions, '''algebra tiles''' can also be used to simplify algebraic expressions. For instance, if you have 4x+5-2x-3 you can combine the positive and negative x tiles and unit tiles to form zero pairs to leave you with the expression 2x+2. Since the tiles are laid out right in front of you it is easy to combine the like terms, or the terms that represent the same type of tile. [http://www.phschool.com/professional_development/teaching_tools/pdf/using_algebra_tiles.pdf] ===Using the distributive property=== The [[distributive property]] is modeled through the '''algebra tiles''' by demonstrating that a(b+c)=(a×b)+(a×c). You would want to model what is being represented on both sides of the equation separately and determine that they are both equal to each other. If we want to show that 3(x+1)=3x+3 then we would make three sets of one unit tile and one x tile and then combine them together to see if would have 3x+3, which we would.[http://www.regentsprep.org/rEGENTS/math/realnum/Tdistrib.htm] ===Solving linear equations=== Manipulating '''algebra tiles''' can help students solve [[linear equations]]. In order to solve a problem like x-6=2 you would first place one x tile and six negative unit tiles in one group and then two positive unit tiles in another. You would then want to isolate the x tile by adding six positive unit tiles to each group, since whatever you do to one side has to be done to the other or they would not be equal anymore. This would create six zero pairs in the group with the x tile and then there would be eight positive unit tiles in the other group. this would mean that x=8.[http://www.phschool.com/professional_development/teaching_tools/pdf/using_algebra_tiles.pdf] You can also use the [[subtraction]] property of equality to solve your [[linear equation]] with '''algebra tiles'''. If you have the equation x+7=10, then you can add seven negative unit tiles to both sides and create zero pairs, which is the same as subtracting seven. Once the seven unit tiles are subtracted from both sides you find that your answer is x=3.Kitts, N: "Using Homemade Algebra Tiles to Develop Algebra and Prealgebra Concepts", page 464. MATHEMATICS TEACHER, 2000. There are programs online that allow students to create their own [[linear equations]] and manipulate the '''algebra tiles''' to solve the problem. [http://my.hrw.com/math06_07/nsmedia/tools/Algebra_Tiles/Algebra_Tiles.html Solving Linear Equations Program] This video from Teacher Tube also demonstrates how '''algebra tiles''' can be used to solve linear equations. [http://www.teachertube.com/view_video.php?viewkey=7b93931b2e628c6e6244&page=&viewtype=&category= Teacher Tube Solving Equations] ===Multiplying polynomials=== When using '''algebra tiles''' to multiply a [[monomial]] by a [[monomial]] you first set up a rectangle where the [[length]] of the rectangle is the one [[monomial]] and then the [[width]] of the rectangle is the other [[monomial]], similar to when you multiply [[integers]] using '''algebra tiles'''. Once the sides of the rectangle are represented by the '''algebra tiles''' you would then try to figure out which '''algebra tiles''' would fill in the rectangle. For instance, if you had x×x the only '''algebra tile''' that would complete the rectangle would be x2, which is the answer. [[Multiplication]] of [[binomials]] is similar to [[multiplication]] of [[monomials]] when using the '''algebra tiles''' . Multiplication of [[binomials]] can also be thought of as creating a rectangle where the [[factors]] are the [[length]] and [[width]].Stein, M: Implementing Standards-Based Mathematics Instruction", page 98. Teachers College Press, 2000. Like with the [[monomials]], you set up the sides of the rectangle to be the [[factors]] and then you fill in the rectangle with the '''algebra tiles'''. Stein, M: Implementing Standards-Based Mathematics Instruction", page 106. Teachers College Press, 2000. This method of using '''algebra tiles''' to multiply [[polynomials]] is known as the area modelLarson R: "Algebra 1", page 516. McDougal Littell, 1998. and it can also be applied to multiplying [[monomials]] and [[binomials]] with each other. An example of multiplying [[binomials]] is (2x+1)×(x+2) and the first step you would take is set up two positive x tiles and one positive unit tile to represent the [[length]] of a rectangle and then you would take one positive x tile and two positive unit tiles to represent the [[width]]. These two lines of tiles would create a space that looks like a rectangle which can be filled in with certain tiles. In the case of this example the rectangle would be composed of two positive x2 tiles, five positive x tiles, and two positive unit tiles. So the solution is 2x2+5x+2. ===Factoring=== In order to factor using '''algebra tiles''' you start out with a set of tiles that you combine into a rectangle, this may require the use of adding zero pairs in order to make the rectangular shape. An example would be where you are given one positive x2 tile, three positive x tiles, and two positive unit tiles. You form the rectangle by having the x2 tile in the upper right corner, then you have two x tiles on the right side of the x2 tile, one x tile underneath the x2 tile, and two unit tiles are in the bottom right corner. By placing the '''algebra tiles''' to the sides of this rectangle we can determine that we need one positive x tile and one positive unit tile for the [[length]]and then one positive x tile and two positive unit tiles for the [[width]]. This means that the two [[factors]] are x+1 and x+2. Kitts, N: "Using Homemade Algebra Tiles to Develop Algebra and Prealgebra Concepts", page 464. MATHEMATICS TEACHER, 2000. In a sense this is the reverse of the procedure for multiplying [[polynomials]]. ===Completing the square=== The process of [[completing the square]] can be accomplished using '''algebra tiles''' by placing your x2 tiles and x tiles into a square. You will not be able to completely create the square because there will be a smaller square missing from your larger square that you made from the tiles you were given, which will be filled in by the unit tiles. In order to [[complete the square]] you would determine how many unit tiles would be needed to fill in the missing square. In order to [[complete the square]] of x2+6x you start off with one positive x2 tile and six positive x tiles. You place the x2 tile in the upper left corner and then you place three positive x tiles to the right of the x2 tile and three positive unit x tiles under the x2 tile. In order to fill in the square we need nine positive unit tiles. we have now created x2+6x+9, which can be factored into (x+3)(x+3).[http://www.regentsprep.org/Regents/math/algtrig/ATE12/completesq.htm]
Definition to exponential equations?
An exponential equation is one in which a variable occurs in the exponent.An exponential equation in which each side can be expressed interms of the same base can be solved using the property:If the bases are the same, set the exponents equal.
What are corrugated tiles?
Corrugated tiles means sheets of tiles that are using for building purpose. Such materials are using for design and making house roof looking great. Such tiles are May available in stores like wholetiles
What does the letters in algebra stand for?
The letters in algebra stand for unknown numbers or amounts that you are trying to find out (calculate).For instance you have 3 things and you want to find out how many you have to add to get 5 things. You call the unknown amount X (or any letter you like) and you use an algebra equation to find the answer. So:3 + X (the unknown) = 5...and you already know the answer is 2, but when you learn the rules of calculating with algebra, you will be able to find the answers to much more complicated mathematical questions. Basically, you call the unknowns any letter you want, then you make an equation using the numbers you do know, and then you solve the equation.
What does b plus 4b equal?
Your equation cannot be solved. So we simplify using fun algebra! 4b + b = 5b
Write a algebra equation for each statement and solve using tiles seven years ago my son was three years old how old is he now?
Hes 10 years
What is equadtratic equation?
A quadratic equation normally has 2 solutions and can be solved by using the quadratic equation formula.
What type of mathematical problems can be solved using algebra?
The total price of an object is $ 33.00 and the tax is 7.5%. What is the price of the object? Using algebra............. Let x=price of the object. Then .075x+x=33 and x(.075+1)=33 and x=33/1.075. Then x=$ 30.70 approx. [ADDED] . The fuller answer would be: ALL types of mathematical problems can be solved using Algebra, because algebra is the language of maths. It is not a separate discipline. It might be more pertinent to ask if any maths can be solved without algebra. A few abstract concepts such as Euclidean Geometry might be, but little else..
y 7x plus 10 and you know that y 3 What is the value of x?
The equation y = 7x + 10 can be solved when we know that y = 3. Using basically algebra, the value of x can be determined, which is -1. Simply subtract 10 from both sides of the equation and then divide both sides by 7.
What is the relationship between linear algebra and economics?
Many problems in economics can be modelled by a system of linear equations: equalities r inequalities. Such systems are best solved using matrix algebra.
How do you solve for momentum?
Momentum, p, is solved by using the momentum equation: p = m*v.
What number is n in algebra?
The whole point of using n in algebra is that it stands for an unspecified number. Until you have an equation (or inequality) that involves n and solve it for a value of n.
How do you write a story problem using algebra?
write a story where a real problem is solved by someone using math. this original story must be at least 700 words long
How can you find a variable in math?
You find, or construct, an equation or set of equations which express the unknown variable in terms of other variables. Then you solve the equation(s), using algebra.You find, or construct, an equation or set of equations which express the unknown variable in terms of other variables. Then you solve the equation(s), using algebra.You find, or construct, an equation or set of equations which express the unknown variable in terms of other variables. Then you solve the equation(s), using algebra.You find, or construct, an equation or set of equations which express the unknown variable in terms of other variables. Then you solve the equation(s), using algebra.
What is an advantage to using equations?
When given two names (variable expressions) for the same quantity, you can use algebra to solve the equation.
What is an advantage to using what equations?
When given two names (variable expressions) for the same quantity, you can use algebra to solve the equation.
