Finding unit rates

If a car travels 180 miles in 3 hours, what is its average speed in miles per hour?

• 45 miles per hour

• 30 miles per hour

• 60 miles per hour

• 90 miles per hour

A train travels 300 miles in 5 hours. What is its average speed in miles per hour?

• 65 miles per hour

• 55 miles per hour

• 60 miles per hour

• 50 miles per hour

A grocery store sells 8 apples for $4. What is the unit rate in apples per dollar?

• 2 apples per dollar

• 4 apples per dollar

• 0.5 apples per dollar

• 8 apples per dollar

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

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

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

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. How much money he spends in hiking?

• $17.00

• $14.00

• $8.00

• $12.00

A 16-ounce bag of rice costs $4.80. What is the price per ounce?

• $0.20 per ounce

• $0.30 per ounce

• $0.25 per ounce

• $0.40 per ounce

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

Part way through the competition, the students are gather together and divided into 15 teams. If there are still 180 students in the competition, how many students are on each team now?

• 9 students per team

• 10 students per team

• 11 students per team

• 12 students per team