Unit Rate and Proportions

What mathematical operation does unit rates involve?

• addition
• subtraction
• multiplication
• division

Tags

CCSS.7.EE.B.3

In an animal shelter, there are 5 dogs for every 20 cats. Which rate best represents the relationship between dogs and cats?

• 10 dogs for every 40 cats
• 1 dog for every 5 cats
• 2 dogs for every 10 cats
• 12 dogs for every 50 cats

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Mrs. Nuckels used 3 cups of flour to make 60 cookies. How many cups of flour did she use to make 90 cookies?

• 6 c.

• 30 c.

• 4 1/2 c.

• 5 c.

Mr. Foster drove 160 kilometers in 2 hours. What is the distance he can travel in 6 hours?

• 540
• 48
• 480
• 54

Tags

CCSS.6.RP.A.3B

A cashier at the grocery store rung up 2 customers in 8 minutes. At this rate, how many customers can he ring up in 30 minutes?

• 16 customers

• 10.5 customers

• 7.5 customers

• 14 customers

Tags

CCSS.6.RP.A.3B

Which is the better buy? A 12-pack of Pepsi for $3.50 or a 6-pack for $1.80?

• The 12-pack

• The 6-pack

• They're the same

• Neither, I prefer Coke

Tags

CCSS.6.RP.A.3B

It cost me $46.80 to fill my 13-gallon gas tank. What was the price of gas per gallon?

• $3.60/gal

• $3.55/gal

• 3.60gal/$

• $3.50/gal

A cookie recipe needs 1 1/3 cups of flour to make 1/2 batch of cookies. How much flour is needed to make 1 batch of cookies?

• 1 1/6 batch/cups

• 1 2/3 cups/batch

• 2 2/3 cups/batch

• 2 2/3 batch/cups

It took Julius 1/3 of an hour to ride his bike 2 3/4 of a mile. How many miles per hour can he ride his bike?

• 3.5 hours/mile

• .12 miles/hour

• 8.25 miles/hour

• 16.5hours/mile

Mr. Roman drove from his hometown to another city. He used 12 1/4 gallons of gas for the 318 1/2 mile trip. On average, how many miles did Mr. Roman travel per gallon of gas?

• 26 miles/gal

• 26.5 miles/gal

• 30.625 miles/gal

• 26 gal/mile