Retake Chapter 5

A car travels 300 miles in 5 hours. What is the unit rate of the car's speed in miles per hour?

• 50 mph

• 60 mph

• 75 mph

• 100 mph

If a scale drawing of a building uses the scale 1 inch = 20 feet, and the actual height of the building is 100 feet, how tall should the building be in the drawing, in inches?

• 2 inches

• 4 inches

• 5 inches

• 10 inches

• 3

• 5

• 7

• 9

In a recipe, the ratio of cups of sugar to cups of flour is 1:3. If you use 9 cups of flour, how many cups of sugar do you need?

• 2

• 3

• 4

• 6

A map has a scale of 1 inch = 100 miles. If two cities are 3 inches apart on the map, how far are they actually apart?

• 100 miles

• 200 miles

• 300 miles

• 400 miles

If the ratio of boys to girls in a class is 2:3 and there are 15 girls, how many boys are there?

• 8

• 10

• 12

• 14

A recipe calls for 4 cups of water for every 2 cups of rice. How many cups of water are needed for 3 cups of rice?

• 4

• 6

• 8

• 10

• 2

• 4

• 7

• 14

If a scale drawing uses a scale of 1 cm = 5 m, and a room in the drawing is 8 cm long, how long is the actual room?

• 40 m

• 45 m

• 50 m

• 55 m

If you buy 7 apples for $3.50, what is the unit rate per apple?

• $0.25

• $0.50

• $0.75

• $1.00