Is It Rate, Unit Rate, Ratio

You can buy 36 cookies for $4. What is the unit rate (in cookies per dollar)?

• 4 cookies per dollar

• 6 cookies per dollar

• 9 cookies per dollar

• 1/9 dollars per cookie

Ken can walk 40 dogs in 8 hours. Determine how many dogs he can walk in one hour.

• 5 hours per dog

• 5 dogs per hour

• 320 dogs per hour

• not here

Which of the following is a UNIT RATE?

• 10 miles / 2 hours

• $6 for each hour

• 1 box / $3

• 15 pounds every 5 servings

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

?

Mathematical Equivalence

ON

Imani compared the number of fluid ounces per bottle of sunscreen to the cost of four different brands of sunscreen. The information she gathered is shown in the table. Based on the data in the table, brand ​ (a)   of sunscreen has the greatest cost per fluid ounce.

• x

• w

• y

• z

Find each unit rate. Round your answer to the nearest hundredth:​ (a)  

11 chickens lay 77 eggs _________eggs per chicken

• 7

• 22

• 30

• 10

irections: Find each unit rate. Round your answer to the nearest hundredth:​ (a)  

7 penguins for $126.00 ________ each

• $18

• $24

• $4

• $10

A recipe calls for 3/4 cup of brown sugar for every 3 eggs. What is the unit rate of eggs per cup?  (a)  

• 1 cup/4 eggs

• 1 cup/3 eggs

• 3 eggs/1 cup

• 4 eggs/1 cup

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