Rates - Rates, Ratios, and Proportions

Intro Lesson

• 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?

• a)

  $4.50 for 2 lb of broccoli.

• b)

  5 pizzas for 12 people.

• c)

  2 goals in a 90 minute long soccer game.

• 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

• 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?