Unit Rates Answers

Two stores sell CDs in packages, as shown in the table below.CD Prices at Store ANumber of CDs in Package1122045Cost $0.70$8.40?$31.50CD Prices at Store BNumber of CDs in Package1203065Cost $0.60?$18.00$39.00If the rate at each store is constant, which statement correctly compares the cost of a package containing 20 CDs?

Fuad’s model racing car drives at an average speed of 3 feet per second. Fuad records the distances and times in a table like the one shown below.Speed of Model Race CarDistance (ft.)3 Time (s)1 At this rate, how long will it take the car to travel 21 feet?

A car travels 22 miles for every gallon of gasoline used. The table below represents this relationship.Gas MileageDistance Traveled(miles)Gasoline Used(gallons)221442x3884Which equation correctly shows a pair of equivalent ratios that can be used to find the unknown?

A glacier is moving at a rate of 0.3 inches every hour. The table below represents this relationship.Glacial MovementDistance Moved (inches)Time(hours)0.310.620.93x4What value of x completes the table?

T-Shirts R Us advertises shirts as shown below.Which quantities in the advertisement represent a unit rate?

The ratio of girls to boys in a classroom is 3:5. Kevin says there must be 8 students in the classroom. Which explains whether Kevin is correct?

A van can travel 18 miles on each gallon of gasoline. At that rate, how many miles can the van travel on 15 gallons of gasoline?

A pound of raisins costs $2.00, and a pound of almonds costs $5.00. Six pounds of a trail mix contains 2 more pounds of raisins than almonds. What is the cost of the 6 pounds of trail mix?

Tickets to a movie cost $9.25 each. What is the total cost for 6 tickets?

At one farmer’s market, bananas cost $0.80 per pound. At another farmer’s market, bananas are sold in 5-pound bags for $4.50 per bag. Which explains how to find the better buy?