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MA.6.A.2.2 Interpret and compare ratios and rates.

Sunshine State Standards. MA.6.A.2.2 Interpret and compare ratios and rates. Vocabulary. ratios equivalent ratios rate unit rate. price. $1.98. _____________. ________. number of liters. 2 liters. $1.98. $1.98 ÷ 2. $0.99. _____. ________. _____.

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MA.6.A.2.2 Interpret and compare ratios and rates.

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  1. Sunshine State Standards MA.6.A.2.2 Interpret and compare ratios and rates.

  2. Vocabulary ratios equivalent ratios rate unit rate

  3. price $1.98 _____________ ________ number of liters 2 liters $1.98 $1.98 ÷ 2 $0.99 _____ ________ _____ 2 2 ÷ 2 1 Aratecompares two quantities that have different units of measure. Suppose a 2-liter bottle of soda costs $1.98. $1.98 for 2 liters rate = = When the comparison is to one unit, the rate is called a unit rate. Divide both terms by the second term to find the unit rate. $0.99 for 1 liter unit rate = = = When the prices of two or more items are compared, the item with the lowest unit rate is the best deal.

  4. $2.79 $5.46 _____ _____ 3 rolls 6 rolls $2.79 ÷ 3 $5.46 ÷ 6 _________ _________ 3 rolls ÷ 3 6 rolls ÷ 6 $0.93 $0.91 _____ _____ 1 roll 1 roll Additional Example 3: Consumer Application A 3-pack of paper towels costs $2.79. A 6-pack of the same paper towels costs $5.46. Which is the better deal? Write the rate. Write the rate. Divide both terms by 3. Divide both terms by 6. $0.91 for 1 roll. $0.93 for 1 roll. The 6-pack of paper towels is the better deal.

  5. $2.10 $5.58 _____ _____ 3 pack 9 pack $2.10 ÷ 3 $5.58 ÷ 9 _________ _________ 3 pack ÷ 3 9 pack ÷ 9 $0.70 $0.62 _____ _____ 1 box 1 box Check It Out: Example 3 A 3-pack of juice boxes costs $2.10. A 9-pack of the same juice boxes costs $5.58. Which is the better deal? Write the rate. Write the rate. Divide both terms by 3. Divide both terms by 9. $0.62 for 1 juice box. $0.70 for 1 juice box. The 9-pack of juice boxes is the better deal.

  6. Lesson Quizzes Standard Lesson Quiz Lesson Quiz for Student Response Systems

  7. 1 __ 2 Lesson Quiz Use the table to write each ratio. 1. tulips to daffodils 2. crocuses to total number of bulbs 3. total bulbs to lilies 4. A dozen eggs cost $1.25 at one market. At a competing market, 1 dozen eggs cost $2.00. Which is the better buy? 9:17 20:51 51:5 eggs from the first market

  8. Lesson Quiz for Student Response Systems 4. Jeff sells a pack of 36 pencils for $3.25. Betsy sells a pack of 12 pencils for $1.50. Which is the better buy? A. a pack of 12 pencils from Betsy B. a pack of 36 pencils from Jeff C. Both D. None

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