Percents Proportions and Unit Rates

A painter used 1/2 gallons of paint to paint 3/4 of a room.  At this same rate, how many gallons will it take to paint the whole room?

• 1 1/2
• 3/20
• 2/3
• 6

Jane put a 18 inch tall bucket under a leak in her sink.  The bucket fills at a constant rate of ¾ inch every ⅙ of an hour.  How many hours will it take to fill the bucket?

• 4 ½ of an hour
• ⅔ of an hour
• 3 hours
• 4 hours

Which statement below accurately represents the graph?

• $100 is earned for each hour worked
• $200 earned for every 2 hours worked
  is the unit rate
• $500 is earned for every 8 hours worked
• $250 is earned after working 3 hours

Which of these is a unit rate that matches the proportional relationship represented by this graph?

• 60 miles/1 hour
• 60 hours/1 mile
• 1 mile/1 hour
• 1 hour/60 miles

The graph represents a proportional relationships between the cost of electricity and  number of hours.  What is the cost of electricity per hour?

• $60/hour
• $20/hour
• $10/hour
• $6/hour

Which of these are a unit rate for Brian's typing speed?

• 60 words per minute
• 30 minutes per word
• 60 minutes per word
• 30 words per minute

Which best describes the graph represented in this table?

•  proportional
• non-proportional

What is the constant of proportionality (in miles per hour) based on the table?

• 45 mph
• 90 mph
• 135 mph
• 2 mph

Solve for w.

• w = 6.25
• w = 16
• w = 4
• w = 3.6

Solve for r.

• r = 9.5
• r = 7.5
• r = 10.6
• None of the above.