Part I – MultipleChoice: Show work and place the answer on the line next to the problem number.
(2 pts each)
_____1. Pamela used meter of ribbon to make 10 birthday cards. How much ribbon does she use for each card?
a. 0.075 meterb. 0.133 meterc. 7.5 meterd. meter
_____2. Vicky jogged miles in hour. What was her average rate of speed in miles per hour?
a. b. c. d.
_____3. It takes Brooke 50 minutes to run 4 miles. Which statement describes Brooke’s unit rate?
a. Brooke runs 8 miles every minute.
b. Brooke runs 12.5 miles every minute.
c. Brooke runs 1 mile every 12.5 minutes.
d. Brooke runs 1 mile for every 0.08 minute.
_____4. Rachel paid $0.36 per ounce for cheese. Which block of cheese did she buy?
a. b. c. d.
_____5. The table shows the costs of different size jars of peanut butter. Which of the jars has the lowest unit rate?
a. 12-oz jarb. 18-oz jar
c. 25-oz jard. 32-oz jar
_____6. Which of the following graphs shows a proportional relationship?
a. b.
c. d.
_____7. Amy earns $7 per hour for babysitting. Which of the following statements is true about the relationship between the number of hours Amy works and her earnings?
- The relationship is proportional because there is not a constant rate of change between the points.
- The relationship is nonproportional because the points do not form a straight line.
- The relationship is nonproportional because the line through the points does not intersect the origin.
- The relationship is proportional because the graph of the line passes through the origin and has a constant rate of change.
_____8. This graph shows the miles rode by a cyclist. What is the speed of the cyclist in miles per hour?
a.
b.
c.
d.
_____9. A machine can fill 50 bottles in 2 minutes. Which equation shows how b, the number of bottles, is related to the time, t, in minutes?
a. b. c. d.
_____10. Fifteen percent of the 20 players on the soccer team are new this year. How many players on the team are new this year?
a. 3 b. 6 c. 10 d. 15
_____11. Maria has lunch at a restaurant. If her bill was $12.25 and Maria wants to leave a 20% tip, what is a reasonable estimate for the amount she should leave for the tip?
a. $1.30 b. $2.00 c. $2.45 d. $2.80
_____12. In a recent survey, 55% of pet owners have more than one pet. If there were 620 pet owners surveyed, which proportion can be used to find the number who own more than one pet?
a. b. c. d.
_____13. Select the correct translation of 36% of what number is 27?
a. 0.36n = 27b. n = 0.36 (27)c. 0.36 = n (27)d. 27 = 36n
_____14. A store pays $45 for a jacket and then sells it to a customer for $85.50. What is the percent of increase for the jacket?
a. 40.5%b. 47.4%c. 85.5%d. 90%
Part 2 – Short Answer: Show all work to receive full credit.
1. To make a fruit punch mix, Cara mixes cup of orange juice with cup of cranberry juice. To make more fruit punch of the same mixture, how much orange juice does Cara need to mix with 1 cup of cranberry juice? (3 pts)
______
2. Determine whether the relationship between the two quantities in the table is proportional. Explain your reasoning (3pts).
______
______
3. Carly and David babysit to earn money. The graph shows the relationship between x, the time, in hours, that Carly babysits, and y, the total amount she earns. (2pts each)
- What does the point (4, 48) show?
______
______
- Which point on the graph shows the unit rate? (Write as an ordered pair).
Answer: ______
- Write an equation to show the relationship between x, the time in hours, and y, the total Carly earns in dollars.
Equation:______
- How much would Carly earn if she babysits for 8 hours?Show your work! (Hint: Use the equation above to help).
Answer: ______
4. A proportional relationship is shown in the table. What is the value of n? Show your work! (2pts)
______
5. A pair of jeans that normally sells for $35 is on sale for 20% off. Find the final price of the jeans if the sales tax rate is 6%. Show all work! (5 pts)
Final price: ______
6. Mrs. Martin deposits $2,350 in a money market account. Her account earns an interest rate of 18%. If she does not deposit or withdraw any money from the account, how much will Mrs. Martin have in the account at the end of six months? Remember I=Prt. (4 points)
______
1