Review Rates and Proportional Relationships

Hollie is growing a plant for a science fair. After 3 weeks the plant is 12 centimeters tall. What is the unit rate of growth for the plant?

• 4 cm per week

• 12 cm per week

• 6 cm per week

• 1 cm per week

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which of the following are examples of unit rates? Check all that apply.

• 50 beats per 1 minute

• 100 miles per 2 hours

• $5.00 per 1 carton

• 32 students per 1 teacher

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

During Tracy’s trip across the country, she traveled 2,884 miles. Her trip took 7 days. Calculate a unit rate to represent the average miles she traveled per day during the trip.

• 400 miles per day

• 41 miles per day

• 412 miles per day

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

When the relationship is not constant, the two quantities are what?

• proportional

• nonproportional

Tags

CCSS.7.RP.A.2D

Is the following table proportional?

• Yes, it is proportional.

• No, it is not proportional.

Tags

CCSS.7.RP.A.2A

Manny earns $8 in about 30 minutes working as a waiter earning tips. If he keeps earning tips at the same rate, how long would it take him to make $72?

• $30

• 270 minutes

• 2160 minutes

• $270

Tags

CCSS.6.RP.A.3B

What is the constant of proportionality?

• 6

• 10

• 1

• 8

Tags

CCSS.7.RP.A.2B

Which statement best describes the relationship between x and y in the table?

• Proportional
• Not Proportional

Tags

CCSS.7.RP.A.2A

Write an equation for this relationship.

• y=1/5x
• y=1/2x
• y=2x
• y=5x

Tags

CCSS.6.EE.C.9

A dishwasher uses 65 gallons of water to wash 5 loads of dishes. What is the constant of variation?

• k = 13
• k = 65
• k = 5
• k = 1/13

Tags

CCSS.HSF-LE.A.1B