Intermidiate Algebra

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Author:
Anonymous
ID:
100735
Filename:
Intermidiate Algebra
Updated:
2011-09-09 15:20:52
Tags:
Algebra tutorial
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Description:
College algebra
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  1. What is a variable?
    A variable is a letter that represents a number
  2. What is an algebraic expression?
    • An algebraic expression is a number, variable or combination of the two connected by some mathematical operation like addition, subtraction, multiplication, division, exponents, and/or roots.
    • ex: 2x + y, a/5, and 10 - r are all examples of algebraic expressions
  3. How do you evaluate an expression?
    evaluate an expression by replacing the variable with the given number and performing the indicated operation
  4. Finding the value of an expression
    When you are asked to find the value of an expression, that means you are looking for the result that you get when you evaluate the expression
  5. Addition
    sum, plus, add to, more than, increased by, total
  6. Subtraction
    difference of, minus, subtracted from, less than, decreased by, less
  7. Multiplication
    product, times, multiply, twice, of
  8. Division
    quotient divide, into, ratio

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