Ratios and Proportions Review. Equivalent Ratios. Find the missing values. 1. 2. 3. 4. . 9.5. 16. 21. 15. Proportional?. Determine whether and are proportional. . Find the missing value.
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Equivalent Ratios Find the missing values. 1. 2. 3. 4. 9.5 16 21 15
Proportional? Determine whether and are proportional.
Find the missing value. The Anderson Family is having a party. They figure that they will need 12 cans of soft drinks for every 6 people who attend. How many cans will they need if they are expecting 18 people?
Unit Rate • What is the definition of unit rate? • It is the ratio of two measurements in which the second term is 1. • Examples: • $2 per hour • 15 bowls per minute
Unit Rate • Find the unit rate if Raymond drives his car 180 miles in 3 hours. • A. Write your answer in word form. 60 miles per hour • B. Write your answer in fraction form.
Unit Rates Donuts4U has donuts on sale at 12 for $5.40. Answer the following questions. A. What is the cost per donut? B. How many donuts can you buy for $1? • $0.45 per donut • About 2 donuts for $1
Unit Rates A sign at the state fair advertised ticket prices for the carnival games: Red tickets: 50 tickets for $37.50 • Find the unit price. • How much would 40 red tickets cost? • How many red tickets could you buy for $20?
Unit Rates A sign at the state fair advertised ticket prices for the carnival games: Red tickets: 50 tickets for $37.50 • Find the unit price. $0.75/ticket • How much would 40 red tickets cost? $30 c. How many red tickets could you buy for $20? 26 tickets
Better Buy • Tiffany paid 25 cents for 2 ounces of mixed candy. Tony told Tiffany that he could go to a different store and get a better deal. At the other store, Tony paid 52 cents for 12 ounces of the same candy. Did he make the better buy? Tiffany paid 12.5 cents for 1 ounce of candy. Tony paid about 4 cents for 1 ounce of candy. YES, Tony made the better buy.
Better Buy Which size Dairy Queen Blizzard gives you the best price per ounce? Small 6 oz. cup for $2.49 Large 16 oz cup for $4.99 Small: $0.42 cents per ounce **Large: $0.31 cents per ounce**