Unit Rates Pre-Assessment

Find the unit rate of one diaper if a box of 35 diapers costs $6.99.

• $244.65

• $6.99

• $0.20

• $1.00

You have 29 books on your shelf. You have read 18 of those books. What is the ratio of books not read to all of the books on your shelf?

• 18 to 29

• 11 : 29

• 11 :18

A cashier at the grocery store rung up 2 customers in 8 minutes. At this rate, how many customers can he ring up in 32 minutes?

• 7 customers

• 8 customers

• 10 customers

• 12 customers

Which is NOT equivalent to 3:5?

• 15:25

• 30:50

• 21:28

• 9:15

Which of the following expresses a ratio?

• 2.3

• 2/3

• two-thirds

• 0.667

Which is the better buy? A 12 pack of Coke for $3.50 or a six pack of Coke for $1.80?

• They are the same.

• The 12 pack of Coke.

• The 6 pack of Coke.

• Neither

Answer explanation

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

• 0

• 1

• 3

• 2

Jose swims 3 laps in a pool every 2 minutes. How long would it take him to swim 27 laps?

• 16 minutes

• 8 minutes

• 9 minutes

• 18 minutes

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

• 1 : 3

• 12 : 4

• 2 : 6

Brad drives 527 miles on 17 gallons. How many miles does Brade drive on one gallon?

• 15 mpg

• 31 mpg

• 51 mpg

• 17 mpg