Unit Rate, Rates & Proportions

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound? (a)  

• $8 per pound
• $35 per pound
• $5 per pound
• $0.125 per pound

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $.50 per pound

• $1.25 per pound

• $3 per pound

• $2.50 per pound

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? (a)  

• 16 customers
• 10.5 customers
• 7.5 customers
• 14 customers

After 3 hours, Ernie had travelled 195 miles. If he travels at a constant speed, he will have travelled _____ after 5 hours.

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

• $3.60
• $3.55
• $3.40
• $3.50

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

You're throwing a party, and you ordered 15 pizzas for your guests. Your total came to $97.50. What was your unit cost per pizza? (a)  

• $4.95 per pizza
• $5.75 per pizza
• $7.25 per pizza
• $6.50 per pizza

A rate is a ratio that compares (a)  

• A part to a part
• A part to a whole
• Quantities with different units
• Quantities with the same units

A car is going 50 miles per hour. A rate that describes this would have units of

• Miles and cars

• Miles and hours

• Miles only

• Hours only

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