Ratio, Rate, and Unit Rates

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

Mathematical Equivalence

ON

Edgar bought 9 movie tickets for $108. How much was each ticket?

Mathematical Equivalence

ON

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

• 0

• 3

• 1

• 2

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Which is the "better buy"? A 12-ounce can of corn for $1.92 or a 20-ounce can of corn for $3.00?

• They are the same

• The 20-ounce can

• The 12-ounce can

• Neither, who likes corn anyhow?

A rate is a ratio that compares 2 different_______________________________.

• people
• units/measurements
• fractions
• denominators

How are rates and unit rates different?

• A rate has a denominator of 1.  A unit rate does not.
• A rate is just like a fraction.  A unit rate is a ratio.
• Rates involve a measurement of time, but unit rates do not.
• A rate compares two different quantities.  A unit rate has a denominator of 1.

There are 4 triangles, 12 squares, and 6 circles.  What is the ratio of squares to circles? Simplify.

• 1 : 2
• 1 to 4
• 4 : 3
• 2 : 1

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears.  What is the ratio of pears to ALL fruit?

• 5:4
• 5:11
• 2:5
• 6:5

A ratio can be written in the three ways shown in the image.

• true
• false
• sometimes