Ratios at the Austin Zoo

1. Ratios at the Austin Zoo Cookie Recipe Ratios Equations for Stories Proportions for Stories Expressions for Tables $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 Algebraic Thinking Quiz Game

2. For a field trip to the Austin Zoo, 2 adults are required for every 14 students. • How many adults need to go if there are 28 kids on the field trip? • 12 B) 7 • C) 4 D) 2 $100 C

3. For a field trip to the Austin Zoo, 2 adults are required for every 14 students. • How many kids can go if there are 5 adults on the trip? • 35 C) 1 • 70 D) 10 $200 A

4. For a field trip to the Austin Zoo, 2 adults are required for every 14 students. • If there are 48 peopleon the field trip, how many are kids and how many are adults? • 8 adults, 40 kids C) 40 adults, 8 kids • 6 adults, 42 kids D) 42 adults, 6 kids $300 B

5. Chocolate Chip Cookies Makes 60 cookies Ingredients: 2 ¼ cups flour 1 tsp baking soda 1 tsp salt 1 cup butter ¾ cup sugar ¾ cup brown sugar 1 tsp vanilla extract 2 large eggs 12 ounces chocolate chips 1 ½ cups walnuts • How many ounces • of chocolate chips • do we need to make • 20 cookies? • 12 • 6 • 4 • 3 $100 C

6. Chocolate Chip Cookies Makes 60 cookies Ingredients: 2 ¼ cups flour 1 tsp baking soda 1 tsp salt 1 cup butter ¾ cup sugar ¾ cup brown sugar 1 tsp vanilla extract 2 large eggs 12 ounces chocolate chips 1 ½ cups walnuts • How many cups of walnuts do we need to make 180 cookies? • 1 ½ cups • 3 cups • 4 cups • 4 ½ cups $200 D

7. How many cookies could you make with 1 cup of sugar? • 60 • 70 • 80 • 90 Chocolate Chip Cookies Makes 60 cookies Ingredients: 2 ¼ cups flour 1 tsp baking soda 1 tsp salt 1 cup butter ¾ cup sugar ¾ cup brown sugar 1 tsp vanilla extract 2 large eggs 12 ounces chocolate chips 1 ½ cups walnuts $300 C

8. At a basketball game, Russell earned 2 points for every basket he scored. Which equation can be used to find p, the total number of points Russell earned for scoring b baskets? • p = 2b C) p = 2 + 2b • B) p = 2 + b D) p = $100 A

9. Over the weekend (Saturday + Sunday), Leo read a total of 120 pages of his new book. If he read z pages on Saturday, which equation can be used to find y, the number of pages he read on Sunday? • 120 + z = y • 120 = z - y • 120z = y • 120 – z = y $200 D

10. At the rodeo, cotton candy costs $7 and lemonade costs $3. Which equation can be used to find t, the total number of dollars you would pay to buy 2 cotton candies and k lemonades? • t = 7(2) + 7k • t = 3(2) + 7(3) • t = 2k + 2(3) • t = 7(2) + 3k $300 D

11. Which table represents: a + 1.2 = b ? A C B D $100 B

12. There is a relationship between the values of p and k in the table below. Which expression represents the value of k in terms of p? p + p + p - $200 C

13. A very detail oriented baker puts the same number of chocolate chips in each cookie. The table below shows the relationship between the number of cookies made, c, and the number of chips used, d. Which expression can be used to find the number of chips needed to bake c cookies? D • C + 2 C) c /12 • C x 10 D) 12c $300

14. Mrs. Reynolds can grade 15 papers in 30 minutes. Which proportion would be best to determine p, the number of papers she can grade in 1 hour? $100 B

15. Chocolate Chip Cookies Makes 60 cookies Ingredients: 2 ¼ cups flour 1 tsp baking soda 1 tsp salt 1 cup butter ¾ cup sugar ¾ cup brown sugar 1 tsp vanilla extract 2 large eggs 12 ounces chocolate chips 1 ½ cups walnuts Which proportion could be used to find how many eggs you need to make 90 cookies? $200 A

16. Sam is buying dog food for an animal rescue. He needs to buy 3 bags of dog food for every 11 dogs. He bought a total of 27 bags of dog food. Which proportion can be used to determine p, the number of dogs at the animal rescue? $300 C