Practice 2015 – Domain 2 Ratio and Proportional Relationships Milestone Practice 2015 – Domain 2 Ratio and Proportional Relationships

Domain 2 – Ratios and Proportions 3. A recipe for applesauce calls for 1/3 cup of honey. The recipe makes 8 servings. How many cups of honey are needed to make 20 servings? 4. It takes Wayne 1/10 hour to walk a 1/6-mile park loop. What is Wayne’s unit rate, in miles per hour?

Domain 2 – Ratios and Proportions 6. Nina types 126 words in 3 minutes. Which Equation shows the relationship between the number of words, w, and the time, in minutes, m, that she types? w = 3m w= 42m w= 126m w=378m 9. Sondra’s room is 15 feet long by 8 feet wide. She is putting carpet in the room. It costs $3.75 per square foot. How much will it cost to carpet Sondra’s room?

Domain 2- Ratios and Proportions 10. Mason earns $10 for each lawn he mows. How much will he earn if he mows 6 lawns? Write and solve an equation to solve the problem. Show your work. Make a graph to display the relationship.

2. Of the 60 students who auditioned in a singing contest, 40% were asked to come back for a second audition. After the second audition, 6 students were asked to come back for a final audition. What percentage of the students from the second audition were asked to come back for the final audition?

2. Of the 60 students who auditioned in a singing contest, 40% were asked to come back for a second audition. After the second audition, 6 students were asked to come back for a final audition. What percentage of the students from the second audition were asked to come back for the final audition? A 4% B 10% C 15% D 25%

3. A volcano in the ocean rises approximately 14,000 feet above sea level. Its base is approximately 20,000 feet below sea level. What is the total height of the volcano? Show your work and write your answer in the space provided. _______ feet

4. A zoo wanted to know which animal exhibit is liked the most by children under 12 years of age. One day, zoo officials surveyed every 20th person leaving the zoo and asked them to name their favorite animal exhibit. Of the people surveyed, 73% reported that the elephant habitat was their favorite exhibit. The zoo officials concluded that children under 12 years of age like the elephant habitat the most. Part A: Describe the sample for this survey. Part B: If 560 visitors were at the zoo on the day of the survey, what was the sample size for the survey? Part C: Was the survey random? Explain your answer. Part D: Explain why the zoo's conclusion is invalid.