Rates

Lessons

• Introduction
  a)

  Ratios, Rates, and Proportions

  • What are they?
  • How are they different from each other?
  
  
  b)

  Unit rates

  • What is a unit rate?
  • How to find the unit rate?
  
  

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• 1.
  Find the unit rate.
  a)

  $4.50 for 2 lb of broccoli.
  
  
  b)

  5 pizzas for 12 people.
  
  
  c)

  2 goals in a 90 minute long soccer game.
  
  

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• 2.
  Find the unit price and identify the best buy.
  a)

  No. of Units	Total Price	Unit Price
  250 ml	$3.50
  400 ml	$4.50
  550 ml	$6.60

  
  
  b)

  No. of Units	Total Price	Unit Price
  300 g	$5.20
  550 g	$9.20
  1 kg	$15.50

  
  

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• 3.

  Runner	Distance (km)	Time (min)
  Ann	15	90
  Katie	2	120
  Dora	3	180

  a)

  Determine the distance each runner ran per minute.
  
  
  b)

  Express your answers in part a) in km/h.
  
  
  c)

  Who is the fastest runner?
  
  

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