Ratios and Double Number Lines

The ratio of dogs to cats in a pet store is 3:2. Which of the following is an equivalent ratio?

• 4:6

• 9:6

• 6:10

• 6:9

In the Madison Middle School band, the ratio of girls to boys is 4 to 5. If there are 63 total students in the band, how many of them are girls? (HINT! Use a ratio table to help you!!)

• 35

• 28

• 9

• 21

The ratio of red paint to yellow paint in a mixture is shown in the diagram above. How many ml of yellow paint are in 4 batches?

• 8

• 16

• 4

• 6

Are the following ratios equivalent?

20:5 and 4:1

• No

• Yes

In a recipe for cookies, it calls for 2 cups of sugar and 6 tablespoons of vanilla. How much of each ingredient would you use if you half the recipe?

• 4 cups of sugar and 12 tablespoons vanilla

• 1 cup of sugar and 6 tablespoons vanilla

• 1 cup of sugar and 3 tablespoons vanilla

• 1/2 cup of sugar and 3 tablespoons vanilla

The ratio of red paint to yellow paint in a mixture is shown in the double number line above. How many teaspoons of yellow paint are in 4 batches?

• 20

• 4

• 12

• 15

Which numbers come next on the double number line?

• Sugar: 12

  Flour: 8

• Sugar: 12

  Flour: 18

• Sugar: 8

  Flour: 12

• I have no idea!

If 9 avocados cost $5, how much do 18 avocados cost?

• $2.50

• $20

• $10

• $15

Refer to the double number line.
If Kim makes 8 loaves of bread, how many cups of raisins did she use?

• 4
• 12
• 16
• 24

Express the ratio as a fraction in simplest form:
18 ounces to 3 cups

• 6 to 1
• 1/6
• 18/3
• 3/18