10/20/2019

Lesson 7

Review lesson, we will have the midterm exam on October 27,2019.

1. Ratios

  •  Express the ratios in their simplest forms
  •   Changing ratio
  •  Example: 99 to 132   3:4         3.5 to 24.5    1:7

2. Proportion

  • Missing proportion
  • Proportions word problem
  • Examples:  196:182=       :91

3. Algebraic expressions

  •  Algebraic expression
  • Evaluate expressions
  • Simplifying expressions
  • Examples: find the value  y – 1 + 4, if y=3.     6
    Simplify the expression  2 – mn – 2 + 2mn     mn

Homework

worksheet  Review A

 

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