Ratios Rates and Conversions

If Justin can type 408 words in 4 minutes, how many words can he type per minute? (Find the unit rate!)

• 102 words per minute

• 100 words per minute

• 400 words per minute

• 412 words per minute

In 2B Math class there are 25 students in total. 15 of them are Canadiens fans. What is the ratio of students that are Canadien fans to those who cheer for other teams? Simplify your answer.

• 3/5

• 2/3

• 1/5

• 3/2

Lin runs 5 laps around a track in 6 minutes. How many minutes per lap is that?

• 1.2 minutes per lap

• .83 minutes per lap

• 30 minutes

• 1 minute

Which weighs more: a watermelon that weighs 7.5 kilograms or a dog that weighs 23 pounds? Explain your reasoning. Note: 1 pound is about 0.45 kilograms.

• The dog because the watermelon weighs about a pound.

• The watermelon because the dog weighs 1.15 kilograms

• They are both the same

• The dog because watermelons are green.

A soccer field is 100 meters long. What is the length in km?

• 1 km

• 1000 km

• 100 yards

• 0.1 km

Is the following a rate or a ratio?

16 students in Math 2B would choose to eat a raw onion to 9 who would choose to eat a spicy Agi chilli pepper

• Rate

• Ratio

A jug of juice has 9 cups of pineapple juice and 4 cups of orange juice. Write the ratio of number of cups of pineapple juice to total number of cups of juice in three different ways.

• 9 to 4, 9:4, 9/4
• 4 to 13, 4:13, 4/13
• 9 to 13, 9:13, 13/9
• 9 to 13, 9:13, 9/13

Paityn types 208 words in 4 minutes. Molly types 342 words in 6 minutes. Who types faster?

• Paityn because she types 57 words per minute

• Molly because she types 57 words per minute

• Paityn because she types 5 more words per minute that Molly

• They both type at the same rate

Which describes how to find the unit rate for 20 boxes to 5 people?

• Divide 5 by 20

• Multiply 20 by 5

• 20/5

• Multiply 5 by 20

Convert the following:

36 m/s = ____km/hr