Ratios, Rates, and Proportions

Choose the correct ratio:

10 students are asked if they have a cell phone. 3 said no. 7 said yes. What is the ratio of students who do not have a cell phone to those that do?

• 3:10

• 10:3

• no one has a phone
  

• 10 to 3
  

Choose the correct ratio:

Jen has a bag of jelly beans with two colors. She counts 20 jelly beans. 12 of them are red. How many are blue?

• 20

• 12

• 8

• none

Write the ratio:

In that last question there were 20 jelly beans in a bag. 12 were red. What is the ratio of blue jelly beans to red jelly beans?

• 12:8

• none

• 8:12

• 28:8

True or false:

Ratios can be written as fractions

• true

• false

Write the ratio as a fraction:

In the 6th grade, there are 8 girls to every 12 boys.

• 8/12

• 12/8

• 12:8

• none of the above

Unit rate:

A car can travel 300 miles on 15 gallons of gas. What is the unit rate per gallon of gas? How do I set up my equation?

• 15÷300

• 15÷1÷300

• 300÷15

• none of the above

Unit rate:

What is the unit rate of the previous question? A car can travel 300 miles on 15 gallons of gas. (hint divide)

• 15 gallons per mile

• 20 miles per gallon

• 25 miles per gallon

• 30 miles per gallon

Find the unit rate:

My brother jogs 30 miles in 5 hours

• 6 miles per hour

• 2 miles per hour

• 150 miles per hour

• 5 miles per hour

Find the unit rate:

We swam 100 yards in 2 minutes

• 50 yards per minute

• 25 yards per minute

• 5 yards per minute

• 50 minutes per yard

Find the unit rate:

Jesse does 240 pushups in 5 minutes

• 24 pushups per minute

• 48 minutes per pushup

• 100 pushups per minute

• 48 pushups per minute