Rates Ratios Proportions Scale

This scale drawing shows a parking lot. What is the length of the longer side of the actual lot?

• 63 m

• 235 m

• 315 m

• 630 m

Find missing side

• 5

• 7

• 9

• 11

The 6th grade took a field trip to the movies. The table shows the price of popcorn based on the quantity purchased. How much would it cost for 20 bags of popcorn? 

• 50

• 55

• 60

• 65

If 30 kids in the class like grape juice, how many kids like pineapple juice?  Use the tape diagrams to answer.

• 4

• 30

• 70

• 40

• x = 15

• x = 11

• x = 20

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number c of cats.

• c=15

• c=18

• c=21

• c=16

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft

• 7.5 ft 

• 4.5 ft

• 45 in

The scale model of a building is 6.5 inches tall. How tall is the actual building if the scale used for the model is 1 inch = 150 feet?

• 650 feet

• 840 feet

• 900 feet

• 975 feet

A blueprint was using a scale of 3cm=4.5m. Find the actual length if it is 5cm on the drawing.

• 7.5

• 13.5

• 1.5

• 1.7