Ratios, Rates and Unit Rate (Check for Understanding)

Which best describes the unit rate formula?

(*hint: the speed limit signs)

• Time over quantity

• Quantity over time squared

• Quantity squared over time

• Quantity over time

If it takes you an hour to bike 20 miles, what is your unit rate?

• an hour per mile

• 20 miles per hour

• 40 miles per hour

• 1 mile per hour

If you are driving at 65 miles per hour, how long will it take you to go 130 miles?

• 2 hours

• 5 hours

• 1 hour

• All day

Jordan has 3 blue marbles and 8 red marbles. What is the ratio of blue marbles to red marbles?

• 3:3

• 3:5

• 3:8

• 3:11

Which statement describes a unit rate?

• Sara ate 1 cookie

• Sara is driving 16 miles

• Sara is driving 30 miles per 1 hour

• Sara ate 3 crackers and 1 apple

Which of these describes the unit rate?

• a unit of measure

• a fraction with a numerator of one

• a fraction with a denominator of one

• a proportion

Josh bought a pizza with eight slices of pizza for $12. What is the cost of a slice of pizza?

• $12

• $3

• $1

• $1.50

You can show a comparison between two quantities/terms by writing a _________?

• Ratio

• Rate

• Quaniity

• Unit rate

The ratio of violin players to flute players in the school’s orchestra is 5:3. What does this mean?

• For every 5 violin players, there are 3 flute players.

• There are 5 more violin players than flute players.

• There are 2 more violin players than flute players.

• For every 5 flute players, there are 3 violin players.

In Karen's math class, there are 12 boys and 15 girls. Which of the following is the ratio of boys to girls in Karen's math class?

• 12/27

• 4/5

• 5/4

• 27/12