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1、,01/19/11 Unit Price and Proportion,Todays Plan: -Warm-Up & Correct Homework -Unit Price -Proportion,Warm Up Coffee costs $18.96 for a 3 pound bag. What is the cost per pound of coffee?,LT: I will review unit rates and learn to write and solve proportions.,01/19/11 Unit Price and Proportion,Todays P
2、lan: -Warm-Up & Correct Homework -Unit Price -Proportion,Correct Homwork,LT: I will review unit rates and learn to write and solve proportions.,01/19/11 Unit Price and Proportion,Todays Plan: -Warm-Up & Correct Homework -Unit Price -Proportion,Unit Price: Unit rate showing the cost per item. dollars
3、 1 item,LT: I will review unit rates and learn to write and solve proportions.,01/19/11 Unit Price and Proportion,Todays Plan: -Warm-Up & Correct Homework -Unit Price -Proportion,In the newspaper, find an example for each of the following. Items priced together (like 4 apples for $1) An example show
4、ing the price of one item and the number of ounces in the item (like $5 for a 16oz jar of something).,LT: I will review unit rates and learn to write and solve proportions.,Unit Price,John can buy a 24 oz bottle of ketchup for $2.19 or a 36 oz bottle for $3.79. Which is the better buy?,$2.19 24,=,$0
5、.09,=,$3.79 36,$0.11,The better buy is the 24-oz jar for $2.19.,Divide the price by the number of ounces.,01/19/11 Unit Price and Proportion,Todays Plan: -Warm-Up & Correct Homework -Unit Price -Proportion,LT: I will review unit rates and learn to write and solve proportions.,Period 1 :Pre-Algebra B
6、ook page 348 #6-18 Period 5: Pre-Algebra Book page 348 #9-18,01/19/11 Unit Price and Proportion,Todays Plan: -Warm-Up & Correct Homework -Unit Price -Proportion,LT: I will review unit rates and learn to write and solve proportions.,Proportion Copy the following notes into your notebook. Ratios that
7、are equivalent are said to be proportional. An equation showing two ratios are equal is called a proportion. Example:,10 6,=,25 15,01/19/11 Unit Price and Proportion,Todays Plan: -Warm-Up & Correct Homework -Unit Price -Proportion,LT: I will review unit rates and learn to write and solve proportions.,Inser
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