Understand Rates and Unit Rates

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

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

• 16 customers per hour

• 12 customers per hour

• 20 customers per hour

• 15 customers per hour

Will spent $4.00 for 4 pounds of granola. What is his unit rate in dollars per pound?

• $.50 per pound

• $1.00 per pound

• $3 per pound

• $2.50 per pound

If Antonia can type 408 words in 4 minutes, how many words can she type per minute?

• 408 words per minute

• 100 words per minute

• 400 words per minute

• 102 words per minute

It cost me $48.00 to fill my 12-gallon gas tank. What was the price of gas per gallon?

• $4.00

• $3.55

• $3.40

• $3.50

A rate is a ratio that compares

• 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

If Maya makes $10 an hour at her after school job, how many hours will it take her to earn $150?

• 10 hours

• 1.5 hours

• 15 hours

• 20 hours

Christina biked 36 miles in 6 hours. If she biked at a constant speed, how many miles did she ride in one hour?

• 6 mph
• 216 mph
• 30 mph
• 42 mph

Lisa made $300 in 6 hours. Find the unit rate. 

• $1800 per hour
• $ 294 per hour
• $50 per hour
• $5 per hour