Proportions & Equivalent Ratios

Destiny is making a gelatin dessert for a party. The ratio of servings to people is 16 : 6. If each pan Destiny uses to make the dessert holds 8 servings, what is the minimum number of these pans that she needs in order to make enough to feed 9 people?

• 4

• 2

• 3

• 5

Every 2 days a scientist spends 1.5 hours observing dolphins and 3.25 hours observing sea lions. At this rate, how many total hours will the scientist spend observing dolphins and sea lions in 8 days?

• 28.5 hours

• 19 hours

• 9.5 hours

• 23.5 hours

Mrs. Jackson drove through a total of 40 intersections on her way home from work last week. 3 ouf of 12 intersections, Mrs. Jackson had to stop for a red light before she could drive through. At how many intersections did Mrs. Jackson have to stop for a red light?

• 3

• 10

• 24

• 12

Mr. Batson sold 144 bags of popcorn and 219 bottles of water in 3 days. At this rate, how many more bottles of water than bags of popcorn will Mr. Batson sell in 5 days?

• 84

• 69

• 125

• Not here

Quinian pays $174 every 4 months for his guitar lessons. At this rate, how much will Quinian pay for 3 years of guitar lessons?

• $534

• $2,136

• $1,566

• $712

A package of 6 erasers costs $0.39. At this rate, how much would 68 erasers cost, in dollars and cents?

• $4.42

• $3.90

• $5.00

• $4.00

Every day a zookeeper feeds 4 adult elephants a total of 320 lb of food. At this rate, how many pounds of food would the zookeeper need every day to feed 6 adult elephants?

• 480 lb

• 320 lb

• 440 lb

• 80 lb

In a first-aid kit the ratio of large bandages to small bandages is 5 : 3. Based on this ratio, how many large bandages are in the kit if there are a total of 80 bandages?

• 50

• 48

• 16

• 40

A school counselor surveyed 90 randomly selected students about the languages they speak. Of the students surveyed, 16 speak more than one language fluently. Based on these results, how many of the 1,710 students at the school can be expected to speak more than one language fluently?

• 113

• 288

• 389

• 304

Are 14:18 and 7:9 equivalent ratios?

• Yes

• No