Wednesday, January 21, 2009

Unit Rates

Unit rates are helpful for finding the best deal on a product at a store. For example, a store may be selling fish food in a variety of brands. How do you know which brand is the best deal? Find the unit rate of each product and compare the answers!

Here we go! Brand A sells 3oz of fish food for $3.79. Brand B sells a similar kind at a price of $2.58 for 2oz. Is Brand A or Brand B a better deal?

Erin will tell you how to find the best deal using the unit rate!

divide 3.79 by 3 and you'll see that the unit cost is $1.26 an oz.( Brand A)

Divide 2.58 by 2, you get $1.29 an oz. (Brand B)

even though brand A costs more, it is a better deal per oz.!!!!!

3 comments:

  1. wow Erin is so smart!!!! Oh wait that's me!!!!


    erin
    block 2

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  2. hey mr. foster great website and i like the way that you set it up......now then everyone can take an intrest in the math that we learn in your class........

    montana c.
    block:1

    ReplyDelete
  3. i finally got the website to pull up!!!!

    montana c.
    block:1

    ReplyDelete