Unit Rates

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

What mathematical operation does unit rates involve?

• addition

• subtraction

• multiplication

• division

A 5-pound bag of cat food costes $11. What is the unit price of the cat food?

• $11 per 5 pounds

• $2.25 per pound

• $2.20 per pound

• $55 per pound

John is planning a long hike in the mountains on a hot day. He purchased six bottles of water for $9.00, two protein bars for $5.00, and some peanuts for $3.00. Suppose he starts hiking at 11:30 AM and finishes hike at 3:30 PM. What is the unit rate of money spent to hours hiked?

• $ 4 per hour of hiking

• $ 4.25 per hour of hiking

• $ 4.50 per hour of hiking

• $ 4.75 per hour of hiking

The same brand of jellybeans comes in two sizes: a 10-ounce bag for $1.99 and an 18-ounce bag for $2.99. Which size is the better buy per ounce?

• 10-ounce size has $0.99 per ounce. It is the better buy.

• 10-ounce size has $ 0.2 per ounce. It is the better buy.

• 18-ounce size has $0.99 per ounce. It is a better buy.

• 18-ounce size has $ 0.17 per ounce. It is a better buy

Waldo spent $75 on 5 chicken dinners for his family. What was the unit rate for each dinner?

• $15 per dinner

• $9 per dinner

• $12 per dinner

• $8 per dinner

If 5 candy bars cost $3.00, how much will 2 candy bars cost?

• $.40

• $.60

• $.80

• $1.20

You travel 150 miles on 5 gallons. How far did you travel per gallon?

• 15 miles

• 30 miles

• 3 miles

• 25 miles

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Find the unit rate of 624 calories in 3 servings.

• 872 calories per serving

• 208 calories per serving

• 624 calories per serving

• 621 calories per serving