ILEARN Checkpoint 3

Which statement describes a unit rate?

• A person is driving 16 hours in 3 miles.

• A person is driving 30 miles per 1 hour.

• A person ate 3 cookies today.

• A person had 3 days to eat 1 cookie.

What is the correct number for the box above the number 2 to make an equivalent ratio?

• 1

• 3

• 6

• 9

A paint mixture uses a specific blue to green ratio.

What is the correct number for the green paint when blue paint is 6?

• 1

• 2

• 1.5

• 2.5

What is the unit rate for this ratio?

• 1. 5:2

• 1. 0:0

• 1. 2.5:1

• 1. 5:1

A pizza restaurant advertises that 1 large pizza will feed 4 people. Choose the two statements that are true.

• 3 pizzas will feed 6 people.

• 5 pizzas will feed 20 people.

• 4 pizzas will feed 32 people.

• 2 pizzas will feed 8 people.

• 7 pizzas will feed 49 people.

A person runs 6 laps around a track in 42 minutes. What is the rate, in minutes, in which the person runs one lap?

• 5 minutes

• 6 minutes

• 7 minutes

• 8 minutes

If 1 large pizza feeds 4 people, how many people can 3 large pizzas feed?

• 8 people

• 10 people

• 12 people

• 14 people

What is the purpose of calculating a unit rate in a real-world situation?

• To determine the total cost

• To compare different quantities

• To find the rate for one unit

• To measure distance

A car travels 120 miles in 2 hours. What is its correct speed in miles per hour?

• 60 miles per hour

• 1 mile per hour

• 120 miles per hour

• 240 miles per hour

A student solved the given problem.

Problem: A car travels 120 miles in 2 hours. What is its speed in miles per hour?

Solution: Speed = 2 hours/120 miles = 1/60 miles per hour

In the problem, what mistake did the student make in calculating speed?

• The rate was flipped; time should be the denominator.

• The distance was incorrect.

• The time was doubled.

• The speed was calculated correctly.