Proportions and Unit Rate

What is the constant of proportionality?

• 1

• 2

• 3

• 4

Find the unit rate (how many avocados per bag):

42 avocados in 7 bags

• 7 avocados/bag

• 6 avocados/bag

• 7 bags/avocado

• 14 avocados/bag

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

• $50 per hour

• $12 per hour

• $192 per hour

• $25 per hour

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

• 102 words per minute

• 100 words per minute

• 400 words per minute

• 412 words per minute

It snowed 14 inches in 5 hours. What is the unit rate?

• 3 inches

• 1.5 inches

• 5 inches

• 2.8 inches

Which is a good example of two ratios that are proportional? 

• 1/3 = 4/7

• 1/2 = 2/4

• 15/1 = 30/5

• 20/10 = 35/5

26 is 5% of what number?

• 3

• 5

• 25.95

• 520

Sarah earns $20 a day working after school. She spent 30% of her daily earnings on Monday. How much money did she spend on Monday?

• $1.40

• $6

• $0.60

• $14

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

Find the unit rate of $7.96 for 5 pounds of jolly ranchers. 

• $0.63 per pound

• 1.59 pounds

• $1.59 per pound