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Lesson 1.2: Words into Symbols - Expressions
Example 1: Represent each word phrase
by a variable expression
a) Jan’s age two years ago
b) Jan’s age five years from now
c) Jan’s father’s age, if he is three times as old as Jan
d) J...
Example 3: Use a formula to write an expression
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Chapter1.3 alghonors

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Chapter1.3 alghonors

  1. 1. Lesson 1.2: Words into Symbols - Expressions
  2. 2. Example 1: Represent each word phrase by a variable expression
  3. 3. a) Jan’s age two years ago b) Jan’s age five years from now c) Jan’s father’s age, if he is three times as old as Jan d) Jan’s cousin’s age, if he is half as old as Jan e) Kit’s age if the sum of Jan’s and Kit’s ages is 28 f) The sum of Jan’s and Bob’s ages, if Bob is twice Jan’s age g) Jan’s sister’s age three years from now, if Jan’s sister is currently 5 years older than Jan.
  4. 4. Example 3: Use a formula to write an expression

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