Introduction to Rates and Unit Rates

A unit rate is a

• comparison of two quantitities

• a comparison of two quantities with units

• a comparison of two quantities with units when the quantity in the denominator is 1

• the number in front of the variable in an expression of equation

Find the unit rate in pages per minute.

• 2 pages per minute

• 1/2 page per minute

Find the unit rate in minutes per page.

In 15 minutes, a person reads 30 pages.

• 2 minutes per page

• 1/2 minute per page

A ​ (a)   is a type of ratio that compares quantities with different units of measure. Such as comparing miles and minutes or dollars and hours. A ​ (b)   is a comparison to ONE unit, such as miles per minute or dollars per hour. To solve any unit rate problem, you must determine the amount for 1.

• rate

• unit rate

• ratio

• fraction

A tank can be filled with water at a rate of 150 liters in 3 minutes. What is the unit rate of liters per minute?

• 50 liters/minute

• 60 liters/minute

• 40 liters/minute

• 45 liters/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 unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2

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 book has 300 pages and can be read in 10 hours, what is the reading rate in pages per hour?

• 30 pages/hour

• 25 pages/hour

• 35 pages/hour

• 40 pages/hour

A ratio with a denominator of one

• Ratio

• Unit Rate

• Scale Factor