Rates Unit Rate Proportions Review

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Find the Unit Rate.
405 rotations in 5 minutes   

• 81 rotations per minute

• 73 rotations per minute

• 18 rotations per minute

• 810 rotations in 10 minutes

Miley earns $10 per hour babysitting. Is the amount of money earned proportional to the number of hours she spends babysitting?

• yes

• no

• sometimes

• never

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

A unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2

Which of these is an example of a unit rate?

• 3 loaves of bread for $5.00

• 27 miles per hour

• 2 pounds for $6.99

• 120 miles in 3 hours

If a printer can print 240 pages in 4 minutes, what is the unit rate of pages per minute?

• 60 pages/minute

• 50 pages/minute

• 70 pages/minute

• 40 pages/minute

If a car travels 300 miles in 5 hours, what is the unit rate of miles per hour?

• 60 miles/hour

• 55 miles/hour

• 65 miles/hour

• 75 miles/hour

A ratio with a denominator of one

• Ratio

• Unit Rate

• Scale Factor

A factory produces 480 gadgets in 8 hours. What is the production rate per hour?

• 60 gadgets/hour

• 55 gadgets/hour

• 65 gadgets/hour

• 70 gadgets/hour