Introduction to Ratio, Rates, and Unit

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

• 0

• 3

• 1

• 2

How do you know if two ratios are proportional?

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

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

If you have the ratio of $30 to 5 hours of work, what operation will you use to find a unit rate?

• Addition

• Subtraction

• Multiplication

• Division

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?

• $4.95 per pizza

• $5.75 per pizza

• $7.25 per pizza

• $6.50 per pizza

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

• $50 per hour

• $12 per hour

• $192 per hour

• $25 per hour

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

It costs $5 to buy 2 pounds of fish tank gravel. What is the unit rate in dollars per pound?

• 5/2 dollars per pound

• 2/5 dollars per pound

• 3 dollars per pound

• 2 dollars per pound

A realtor visits 13 houses in 3 hours. What is the unit rate in houses per hour?

• 10 houses per hour

• 4 houses per hour

• 3/13 houses per hour

• 13/3 houses per hour