Understanding ratio notation, rate language and unit rates

Find the Unit Rate: 1/2 a batch of cookies uses 1/4 cup of butter

• 1/8 cups of butter per batch

• 8 cups of butter per batch

• 2 cups of butter per batch

• 1/2 cups of butter per batch

What is the denominator in this problem? Choose the two correct answers.

During a bake sale, 1½ dozen cookies were sold in ⅓ hour. If sales continue at the same rate, how many dozen of cookies will be sold in one hour?

• dozens of cookies

• hours

• 1½

• ⅓

Henry can write 5 ¼  pages of his novel in 3 hours. How many pages does he write per hour?

• 15.25 pages per hour
• 15.75 pages per hour
• 1.75 pages per hour
• not here

A cookie recipe needs 1 & 1/3 cups of flour to make 1/2 batch of cookies. How much flour is needed to make 1 batch of cookies?

• 1 & 1/6
• 1 & 2/3
• 2 & 2/3

Jessica walked 1/8 of a mile in 1/16 of an hour. How long does it take for her to walk a mile?

• 1/4 hour

• 1 hour

• 2 hours

• 1/2 hour

Sparkle Cleaners uses 2/3 of a jug of window cleaner in 4 weeks. How much window cleaner do they use in 1 week?

_____ jugs per week

• 2/12 of a jug

• 6 jugs

• 1/3 of a jug

• 3 jugs

You are playing tennis against a machine you hit 171 tennis balls in 2/3 hours. How many tennis ball can you hit in 10 hours?

• 1710 Tennis balls

• 2300 Tennis balls

• 114 Tennis balls

• 1140 Tennis balls

It leaked at a rate of how many liters per hour?

• 15/13 liters per hour

• 13/15 liters per hour

• 65/12 liters per hour

• 12/65 liters per hour

Artie mows 1/8 acre of land in 1/4 hour. How many acres does he mow per hour?

• 1/2 acre per hour

• 1/32 acre per hour

• 1/12 acre per hour

• 3/8 acre per hour