Lesson 6.1 Page 267 Ratios

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

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

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 Algebra Numbers 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 pounds to ounces • convert ounces to pounds • Write as fraction • Reduce 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 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 1. 12:16 2. 24 out of 60 3. 36:84 4. 50 to 25

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

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

16. Page 272 Lesson 6.2 Unit Rates $11 for 4 boxes of cereal 400 miles on 14 gallons How much is 1 box ? 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. 1B. 100 meters in 14 seconds Lets do a few Page 272 1A. $18.50 for 5 pounds

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