Lesson 1-6.4cd Ratios

There are 5 student volunteers for every 2 adult volunteers at an event. Which groups could represent the numbers of student volunteers and adult volunteers at the event? Select TWO correct answers.

• 120 student volunteers and 48 adult volunteers

• 20 student volunteers and 50 adult volunteers

• 85 student volunteers and 34 adult volunteers

• 70 student volunteers and 14 adult volunteers

• 65 student volunteers and 13 adult volunteers

A grocery store orders 4 large containers of milk for every 7 small containers of milk. Which ratio could represent the number of large containers of milk to small containers of milk in an order from the grocery store?

• 18:21

• 14:8

• 16:49

• None of these

A housepainter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make a green paint. Which ratio of gallons of blue paint to gallons of yellow paint will make the same shade of green paint?

• 30:54

• 6:10

• 10:45

• 27:15

A baseball traveled 330 feet in 5 seconds. Which rate is equivalent to the rate at which the baseball traveled?

• 55 feet per second

• 66 feet per second

• 55 seconds per foot

• 66 seconds per foot

A county with an area of 425 square miles has a population of 9,350 residents. Which rate best represents the relationship between the population of the county and the area of the county?

• 22 square miles per resident

• 9,350 residents per square mile

• 22 residents per square mile

• 425 square miles per resident