Rates and Compare Rates Math

Which of the following is a UNIT RATE?

• 10 miles / 2 hours

• $6 for each hour

• 1 box / $3

• 15 pounds every 5 servings

Identify the better deal. Four rolls of toilet paper for $7.99 or $6.29 for 3 rolls?

• 4 rolls for $7.99

• 3 rolls for $ 6.29

You can buy 5 cans of green beans at the Village Market for $2.50, or you can buy 10 of them at Best Food for $ 5.10. Which is the better buy?

• Village Market

• Best Food

Suppose that on a Saturday morning you can cut 3 lawns in 5 hours, and your friend can cut  5 lawns in  8 hours.  Who is cutting lawns at a faster rate?

• I am cutting lawns a little faster

• My friend is cutting laws a little bit faster 

• We cut lawns at the same rate 

• I don't cut lawns SONNN

Which runs faster: a cheetah that can run 60 feet in 4 seconds or gazelle that can run 100 feet in 8 seconds?

• cheetah at a unit rate of 14 ft per sec

• gazelle at a unit rate of 12 ft per sec

• cheetah at a unit rate of 15 ft per sec

• gazelle at 12.5 ft per sec

The secretary in the main office can type 225 words in 3 minutes, while the computer teacher can type 105 words in 90 seconds. Can we still compare the unit rates? Who types at a faster rate? Don't forget to first convert to the same unit (seconds or minutes).

• Main office secretary 

• Computer teacher 

• They type at the same rate

• You can't do anything to compare seconds and minutes

During the winter of 2012–2013, Buffalo, New York received 𝟐𝟐 inches of snow in 𝟏𝟐 hours. Oswego, New York received 𝟑𝟏 inches of snow over a 𝟏𝟓-hour period. Which city had a heavier snowfall rate? Round your answers to the nearest tenth

• Buffalo at a rate of 1.83 per sec

• Oswego at a rate of 2.07 per sec

• Buffalo at a rate of 1.8 per sec

• Oswego at a rate of 2.1 per sec

One math student, John, can solve 𝟔 math problems in 𝟐𝟎 minutes while another student, Juaquine, can solve the same 𝟔 math problems at a rate of 𝟏 problem per 𝟒 minutes. Who works faster? 

• John can solve faster

• Juaquine can solve faster

• They solve at the same rate

• #mathsohard

Austin mowed 7 lawns in 4 hours. At that rate, how long will it take him to mow 21 lawns?

• 11 hours

• 12 hours 

• 21 hours

•  28 hours.

Lynnette can wash 95 cars in 5 days. How many cars does she wash each day?

• 475 cars per day

• 19 cars per day

• .05 cars per day

• 15 cars per day