We will write ratios as fractions in simplest form 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
Copy 2 cups = 1 pint 16 ounces = 1 pound 4 cups = 1 quart 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
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
Many ways to write ratios Algebra Numbers Always Reduce
If playing basketball 12 baskets in 18 attempts 12:18 12 to 18 12 18
10 of every 30 Americans own a cell phone 15 out of every 100 students like Physical Education
90 to 4
When writing a ratio involving measurements, both quantities should have the same unit of measurement
convert ounces to pounds Write as fraction Reduce Example Express 8 ounces to 3 pounds pounds to ounces convert ounces to pounds Write as fraction Reduce Remember Hint.... 16 ounces = 1 pound
convert ounces to pounds Write as fraction Reduce Example Express 8 ounces to 3 pounds pounds to ounces convert ounces to pounds Write as fraction Reduce Remember Hint.... 16 ounces = 1 pound
(convert pints to quarts) 3 pints to four quarts (convert pints to quarts) convert quarts to pints Remember Hint.... 2 pints = 1 quart
(convert pints to quarts) 3 pints to four quarts (convert pints to quarts) convert quarts to pints Remember Hint.... 2 pints = 1 quart
Page 268 Problems 1 - 21 write as fractions and reduce 6 - 9 and 18 - 21 are measurements (changes) 22 and 23 are word problems
Pages 268 - 269 5. 15 out of 24 Problems 1- 25 10. 9 out of 15 Selected on next 3 slides 1. 12:16 2. 24 out of 60 3. 36:84 4. 50 to 25
Pages 268 - 269 5. 15 out of 24 Problems 1- 25 10. 9 out of 15 Selected on next 3 slides 1. 12:16 2. 24 out of 60 3. 36:84 4. 50 to 25
7. 3 pints to 4 quarts 8. 9 inches to 1 yard 9. 6 gallons to 3 quarts
7. 3 pints to 4 quarts 8. 9 inches to 1 yard 9. 6 gallons to 3 quarts
18. 10 yards to 10 feet 19. 4 ounces to 2 pounds 20. 18 quarts to 4 gallons 21. 6 feet to 14 inches
18. 10 yards to 10 feet 19. 4 ounces to 2 pounds 20. 18 quarts to 4 gallons 21. 6 feet to 14 inches
18. 10 yards to 10 feet 19. 4 ounces to 2 pounds 20. 18 quarts to 4 gallons 21. 6 feet to 14 inches
18. 10 yards to 10 feet 19. 4 ounces to 2 pounds 20. 18 quarts to 4 gallons 21. 6 feet to 14 inches
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?
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?
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?
Usually when dealing with money you will put the amount first
Lets do a few 1B. 100 meters in 14 seconds Page 272 1A. $18.50 for 5 pounds
Page 273 Online music store sells 15 songs for $12.00. iTunes sells 10 songs for $9.00. What is the best deal?
Page 273 Online music store sells 15 songs for $12.00. iTunes sells 10 songs for $9.00. What is the best deal?
Page 273 Online music store sells 15 songs for $12.00. iTunes sells 10 songs for $9.00. What is the best deal?
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?
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?
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?
Assignment Page 274 Problems 1 - 16 Bonus #20
Page 274 1. $24 per day 2. 19.6 miles per gallon 3. 21.1 points per game 4. $3.25 per pound 5. 4.3 gallons per minute 6. 9.5 feet per second
Page 274 7. Peanuts Which brand is the best buy? Explain your reasoning Barrel 10 oz. for $3.39 Mr. Nut 14 oz for $4.54 Chip's 18 oz for $6.26
Page 274 7. Peanuts Which brand is the best buy? Explain your reasoning Barrel 10 oz. for $3.39 Mr. Nut 14 oz for $4.54 Chip's 18 oz for $6.26 .34 cents per oz .32 cents per oz .35 cents per oz
8. 272 miles Drove 170 in 2.5 hours how many miles in 4 hours?
9. 26 10. 141.3 11. 59 12. $7.49 13. $77 14. 1.3 15. $6.50 16. 6.9
20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies I need 4 1/2 dozen cookies How much sugar do I need?
20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies I need 4 1/2 dozen cookies How much sugar do I need? First find amount of sugar for 1 dozen 3/4 divided by 2
20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies I need 4 1/2 dozen cookies How much sugar do I need? First find amount of sugar for 1 dozen 3/4 divided by 2 = 3/8 3/8 x 9/2 = multiply 3/8 times 4 1/2
20. Recipe calls for 3/4 cup of sugar to make 2 dozens cookies I need 4 1/2 dozen cookies How much sugar do I need? First find amount of sugar for 1 dozen 3/4 divided by 2 = 3/8 3/8 x 9/2 = multiply 3/8 times 4 1/2 27/16 = 1 11/16
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?
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?
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?
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?
Questions for Example 3? Assignment Page 274 Problems 8 - 20