text: Ch 2.7 Percent Word Problems
  
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  # Ch 2.7 Percent Word Problems - PowerPoint PPT Presentation
  
  Ch 2.7 Percent Word Problems. Objective: To translate word problems involving percent and solve the resulting equation. Rules. 1) TRANSLATE each word into Math symbols 2) Use Inverse operations to solve the equation. Translations. what : variable (n) is : equals (=)
  
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  ## PowerPoint Slideshow about 'Ch 2.7 Percent Word Problems' - bryga
  
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  Presentation Transcript
  
  ### Ch 2.7Percent Word Problems
  
  Objective:
  
  To translate word problems involving percent and solve the resulting equation.
  
  Rules
  
  1) TRANSLATE each word into Math symbols
  
  2) Use Inverse operations to solve the equation
  
  Translations
  
  what: variable (n)
  
  is: equals (=)
  
  percent: divided by (÷) 100
  
  of: multiply ()
  
  Example 1
  
  What number is 54% of 200?
  
  54
  
  100
  
  200
  
  n
  
  =
  
  n = 108
  
  Example 2
  
  112% of 650 is what number?
  
  =
  
  n
  
  650
  
  112
  
  100
  
  728 = n
  
  Example 3
  
  7% of what number is 31.5?
  
  100
  
  7
  
  100
  
  7
  
  7
  
  100
  
  n
  
  =
  
  31.5
  
  n = 450
  
  Example 4
  
  150 is 60% of what number?
  
  =
  
  n
  
  100
  
  60
  
  100
  
  60
  
  60
  
  150
  
  100
  
  250 = n
  
  Example 5
  
  What percent of 20 is 5 ?
  
  n
  
  %
  
  20
  
  =
  
  5
  
  ÷100
  
  =
  
  n
  
  20
  
  5
  
  100
  
  20
  
  100
  
  20
  
  100
  
  n = 25
  
  Classwork
  
  1) What is 25% of 56?
  
  2) 77 is 35% of what?
  
  3) 22% of 157 is what?
  
  4) What percent of 135 is 36 ?
  
  Classwork
  
  5) What is 85% of 59?
  
  6) 179 is 98% of what?
  
  7) 90% of 19 is what?
  
  8) What percent of 200 is 135 ?