2. My mom’s car gets 45 miles per gallon on the expressway. p. 33 We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. My mom’s car gets 45 miles per gallon on the expressway. We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. How many miles?How many gallons? per gallon means 1 gallon. Write the UNIT RATE

3. My mom’s car gets 45 miles per gallon on the expressway. p. 33 We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. My mom’s car gets 45 miles per gallon on the expressway. We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. How many sandwiches?How many people? For each person means 1 person. Write the UNIT RATE

4. My mom’s car gets 45 miles per gallon on the expressway. p. 33 We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. My mom’s car gets 45 miles per gallon on the expressway. We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. How many dollars?How many hours? per hour means 1 hour. Write the UNIT RATE

5. My mom’s car gets 45 miles per gallon on the expressway. p. 33 We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. My mom’s car gets 45 miles per gallon on the expressway. We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. How many calories? How many servings? per serving means 1 serving. Write the UNIT RATE

6. My mom’s car gets 45 miles per gallon on the expressway. p. 33 We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. My mom’s car gets 45 miles per gallon on the expressway. We need two sandwiches for each person at the picnic. I earn $3.50 per hour baby-sitting for my neighbor. The mystery meat label says 355 Calories per serving. My brother’s top running rate is 8.5 kilometers per hour. How many kilometers?How many hours? per hour means 1 hour. Write the UNIT RATE

7. Which of the following is an example of a rate? 1.5 boys for every 3 girls 2.3 pigs for every 7 cows 3.32 feet for every 6 seconds 4.25 cents for every 1 dollar Feet and seconds are different units of measure. Both measure people– same unit Both measure animals– same unit Both measure money– same unit Feet measures distance, seconds measures time.

9. Which of the following is an example of a rate? 1.5 inches length to 2 inches width 2.3 miles north for every 7 miles west 3.32 tomatoes for every 6 apples 4.$5.25 cents for every 3 gallons cents and gallons are different units of measure. Both measure distance Both measure amount of food cents measures money, gallons measure volume.

10. Which is an example of a unit rate? 1.$1.78 for 2 tacos 2.400 feet per second 3.3 for $.99 4.10 calculators for $45 #2 is the only one that has a comparison to 1 of something!

12. ÷ 20 6 Since one of the numbers in the rate is a 1, this is a UNIT RATE.

13. 6 x 2 12

14. 6 x 3 12 18

15. 6 12 18 After you find the UNIT RATE, you can multiply the cost for 1 calculator and the total number of calculators to find the total cost. $6 per calculator x 4 calculators = $24 24

16. 6 12 18 $6 per calculator x 5 calculators = $30 2430 $6 per calculator x 10 calculators = $60 60 $6 per calculator x 15 calculators = $90 90

17. 6 12 1824306090 ÷ 15 16 Since one of the numbers in the rate is a 1, this is a UNIT RATE.

18. 6 12 1824306090 16 $16 per calculator x 2 calculators = $32 $16 per calculator x 3 calculators = $48 $16 per calculator x 4 calculators = $64 324864 $16 per calculator x 5 calculators = $80 $16 per calculator x 10 calculators = $160 $16 per calculator x 20 calculators = $320 80160320

19. 6 12 1824306090 ÷ 10 80 Since one of the numbers in the rate is a 1, this is a UNIT RATE. 3248648016032016

20. 6 12 1824306090 16 $80 per calculator x 2 calculators = $160 $80 per calculator x 3 calculators = $240 $80 per calculator x 4 calculators = $320 160 240 320 $80 per calculator x 5 calculators = $400 $80 per calculator x 15 calculators = $1200 $80 per calculator x 20 calculators = $1600 400 1200 1600 80 32486480160320

22. How much does it cost to buy 53 fraction calculators? 1.$218 2.$318 3.$242 4.$424 $6 per calculator x 53 calculators = $318

23. How much does it cost to buy 27 scientific calculators? 1.$218 2.$318 3.$242 4.$432 $16 per calculator x 27 calculators = $432

24. How much does it cost to buy 9 graphing calculators? 1.$618 2.$720 3.$790 4.$730 $80 per calculator x 9 calculators = $720

25. How many fraction calculators can a school buy if it can spend $390? 1.65 calculators 2.56 calculators 3.60 calculators 4.72 calculators 390 ÷ 6 = 65 x 65

26. How many fraction calculators can a school buy if it can spend $84? 1.15 calculators 2.16 calculators 3.10 calculators 4.14 calculators 84 ÷ 6 = 14 x 14

27. How many graphing calculators can a school buy if it can spend $2,500? 1.30 calculators 2.32 calculators 3.35 calculators 4.31 calculators 2500 ÷ 80 = 31.25 x 31.25

28. How many graphing calculators can a school buy if it can spend $560? 1.7 calculators 2.9 calculators 3.5 calculators 4.3 calculators 560 ÷ 80 = 7 x 7

29. . 1.Addition 2.Subtraction 3.Multiplication 4.Division ÷ 20 6

31. What is the CROC for fraction calculators? 6 10 16 80 6 12 1824306090 16 160 240 320 400 1200 1600 80 32486480160 320 Every time the # of calculators increases by 1, the cost increases by $6.

32. Which variable is the independent variable? the number of calculators the total cost Does the number of calculators depend on the total price? OR Does the total cost depend on the number of calculators? 1.The # of calculators 2.Total cost

33. What form should you write your equation? 1.Ind = sv x CROC + dep 2.dep = sv x CROC + ind 3.Ind = dep x CROC + sv 4.dep = ind x CROC + sv

34. Is there a starting value in this situation? (That is if you eat 0 grams, have you eaten any calories?) 1.Yes 2.No

35. Suppose the students analyze 725 grams of rust. How much oxygen should they find? 1.207.5 g 2.217.5 g 3.201.25 g 4.210 g