Introduction to Ratios and Rates

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

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

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

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

• $1.25 per pound

• $1 per pound

• $2 per pound

• $1.50 per pound

What has to be true about a unit rate?

• It must be written as a fraction.

• It must be written as a decimal.

• It is always "per" one thing.

• It is used to measure area in square units.

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

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples