Unit Rates

A ratio can be written in 3 ways. Which of the following is NOT how a ratio is written?

• 3=4

• 3 : 4

• 3 / 4

• 3 to 4

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

• 0

• 3

• 1

• 2

If Justin can type 408 words in 4 minutes, how many words can he type per minute? (What is his unit rate)

• 102 words per minute
• 100 words per minute
• 400 words per minute
• 412 words per minute

Four pounds of bananas cost $6.  What is the cost per pound of bananas? (What is the unit rate?)

• $24 per pound
• $1.50 per pound
• $1 per pound
• $6 per pound

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

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

• 16 customers per hour
• 15 customers per hour
• 12 customers per hour
• 20 customers per hour

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

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?

• 10 customers

• 7 customers

• 8 customers

• 12 customers

Which is the better deal?
Oreos
$2.98 for 15 oz
OR
Chips Ahoy
$2.50 for 14 oz

• Oreos
• Chips Ahoy

Alycia earned $20.40 in 3 hours. What is her unit rate in dollars per hour?

• $7 per hour
• $6 per hour
• $6.80 per hour
• $17.40 per hour