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Lesson 6.1 Page 267 Ratios We will write ratios as fractions in simplest form We will simplify ratios involving measurements A Ratio i sa comparison of.

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Presentation on theme: "Lesson 6.1 Page 267 Ratios We will write ratios as fractions in simplest form We will simplify ratios involving measurements A Ratio i sa comparison of."— Presentation transcript:

1 Lesson 6.1 Page 267 Ratios We will write ratios as fractions in simplest form We will simplify ratios involving measurements A Ratio i sa comparison of two quantities by division

2 2 cups = 1 pint 4 cups = 1 quart 2 pints = 1 quart 4 quarts = 1 gallon 12 inches = 1 foot 36 inches = 1 yard 3 feet = 1 yard Cop y 16 ounces = 1 pound You may use this on test

3 When converting measurement for a ratio use the following: pints to cups quarts to pints quarts to cups gallon to quart pound to ounces feet to inches yard to feet yard to inches You may use this on test

4 Many ways to write ratios Numbers Algebra Always Reduce

5 If playing basketball 12 baskets in 18 attempts 12:18 12 to 18 12 18

6 10 of every 30 Americans own a cell phone 15 out of every 100 students like Physical Education

7 90 to 4

8 When writing a ratio involving measurements, both quantities should have the same unit of measurement

9 Example Express 8 ounces to 3 pounds convert ounces to pounds Write as fraction Reduce pounds to ounces Remember Hint.... 16 ounces = 1 pound

10 3 pints to four quarts (convert pints to quarts) convert quarts to pints Remember Hint.... 2 pints = 1 quart

11 Pages 268 - 269 Problems 1- 25 1. 12:16 2. 24 out of 60 3. 36:84 4. 50 to 25 5. 15 out of 24 10. 9 out of 15 11. 20 out of 36 12. 4 out of 52 13. 45 out of 60 14. 16 to 10 15. 96 to 3 Selected on next 3 slides

12 7. 3 pints to 4 quarts 8. 9 inches to 1 yard 9. 6 gallons to 3 quarts

13 18. 10 yards to 10 feet 19. 4 ounces to 2 pounds 20. 18 quarts to 4 gallons 21. 6 feet to 14 inches

14 Lesson 6.2 Unit Rates $11 for 4 boxes of cereal 400 miles on 14 gallons How much is 1 box ? Page 272 How many miles does your car (truck) get per gallon of gas?

15 Lesson 6.2 Unit Rates $11 for 4 boxes of cereal 400 miles on 14 gallons How much is 1 box ? Page 272 How many miles does your car (truck) get per gallon of gas?

16 Lesson 6.2 Unit Rates $11 for 4 boxes of cereal 400 miles on 14 gallons How much is 1 box ? Page 272 How many miles does your car (truck) get per gallon of gas?

17 Usually when dealing with money you will put the amount first

18 Lets do a few Page 272 1A. $18.50 for 5 pounds 1B. 100 meters in 14 seconds

19 Page 273 Online music store sells 15 songs for $12.00. iTunes sells 10 songs for $9.00. What is the best deal?

20 Page 273 Online music store sells 15 songs for $12.00. iTunes sells 10 songs for $9.00. What is the best deal?

21 Page 273 Online music store sells 15 songs for $12.00. iTunes sells 10 songs for $9.00. What is the best deal?

22 A store sells two different kinds of head phones. Package of 8 sets for $5.76 and package of 12 sets for $8.88. What is the cheapest package?

23 A store sells two different kinds of head phones. Package of 8 sets for $5.76 and package of 12 sets for $8.88. What is the cheapest package?

24 A store sells two different kinds of head phones. Package of 8 sets for $5.76 and package of 12 sets for $8.88. What is the cheapest package?

25 Questions on Lesson 6.2 Page 272 Examples 1 and 2? Assignment: Page 272 Problems 1 - 7 Also from Lesson 6.1 Page 268-269 Problems 6 - 9 and 18 - 21

26 Example 3 Page 273 A typical dolphin will take about 34 breaths in 4 hours. How many breaths will a dolphin take in 7 hours?

27 Example 3 Page 273 A typical dolphin will take about 34 breaths in 4 hours. How many breaths will a dolphin take in 7 hours?

28 Example 3 Page 273 A typical dolphin will take about 34 breaths in 4 hours. How many breaths will a dolphin take in 7 hours?

29 Page 273 Guided Practice 3. Classwork A bakery can make 195 doughnuts in 3 hours. At this rate, how many doughnuts can the bakery make in 8 hours?

30 Questions for Example 3? Assignment Page 274 Problems 8 - 20


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