Activities

1. Seven candy bars will cost you $3.50.  How much will one candy bar cost?

2. While driving to Florida for a vacation your parents said that the car went 250 miles with 20 gallons of gas.  What is the unit rate?

3. Using the chart above, who was reading at a faster rate, Hannah or Rose?  Justify your answer.

4. Using the chart above, which two students have the same unit rate?  Explain how you know this.

5. Arianna made 96 cookies for 4 dozen students. Is this an example of a unit rate?  Explain and if not, be sure to include the unit rate.

6. Chris went to the store and bought 6 bottles of Pepsi for $7.50.  Explain how to calculate the unit rate.

Answer Key/Rubric

1. $0.50 per candy bar

2. 12.5 miles per gallon of gas

3. Rose

        Acceptable responses may include, but are not limited to:

• Hannah reads 10 pages per night; 30/3 = 10
• Rose reads 12 pages per night; 48/4 = 12
• To compare the two we need to find the unit rate so we know how many pages they are reading in one night

4. Philip and Leah

Acceptable responses may include, but are not limited to:

• Find the unit rate for each by dividing the pages read by the number of nights
• Philip’s unit rate: 150 ÷ 10 = 15
• Leah’s unit rate: 45 ÷ 3 = 15
• Each read 15 pages per night

5. No, not a unit rate

Acceptable reasons may include, but are not limited to:

• Unit rate is for one
• This rate is for 4 dozen cookies
• The unit rate would be 24 cookies for 1 dozen students or two cookies per student

6. The cost for one bottle is $1.25. 

Explanation might include, but is not limited to:

• Use division
• Divide the cost by the amount of bottles bought
• $7.50 ÷ 6 = $1.25 per bottle