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Variable

Algebra Fill In Notes 2.7

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02.07 Literal Equations Essential Questions How can you solve linear equations and inequalities in one variable, including equations with coefficients represented by letters? How can you rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations? In the equation: "distance equals rate times time? ____________________ is the most important part. d=(r)(t) In d=(r)(t) the more efficient way to evaluate r is to__________________ it from the rest of the equation first. Work ______________________ to isolate the variable. The key to equations is ________________________.

Algebra Fill In Notes 2.1

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02.01 One-Variable Equations Essential Questions How can we create equations in one variable and use them to solve problems? How can we solve linear equations in one variable? KEEP IT ___________________. The goal is to figure out how much each x weight weighs. You do this by getting one x on one side and its value on the other side. STEPS TO SOLVING AN EQUATION Simplify each side of the __________________. Get the __________________ on one side of the ___________________. Get the _____________ by ___________________. (Solve for the variable) ___________ your solution. Follow along on page 3, Example 1. ?2(x + 1) = 5x + 4 ? x Simplify each side of the equation. Get the variable on one side of the equation.

Test: Intro to science

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1. The work of scientists begins with a. testing a hypothesis. b. careful observations. c. creating experiments. d. drawing conclusions. 3. A controlled experiment allows the scientist to isolate and test a. a conclusion b. a mass of information. c. several variables. d. a single variable. 5. A well-tested explanation that unifies a broad range of observations is a(an) a. hypothesis. b. theory. c. inference. d. controlled experiment. 6. All of the following are characteristics of all living things EXCEPT a. growth. b. reproduction. c. movement. d. use energy. The process by which organisms keep their internal conditions relatively stable is called a. homeostasis. b. evolution c. metabolism. d. photosynthesis.

Basic Aglebra

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Basics of Algebra Algebra is a division of mathematics designed to help solve certain types of problems quicker and easier. Algebra is based on the concept of unknown values called variables, unlike arithmetic which is based entirely on known number values. This lesson introduces an important algebraic concept known as the Equation. The idea is that an equation represents a scale such as the one shown on the right. Instead of keeping the scale balanced with weights, numbers, or constants are used. These numbers are called constants because they constantly have the same value. For example the number 47 always represents 47 units or 47 multiplied by an unknown number. It never represents another value.
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