Double Number Lines and Equivalent Ratios

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!

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

How long would it take 12 people to go down the slide?

• 1 min
• 2 min
• 3 min
• undeterminable

21. Optimus Prime is using a double number line to determine the amount of raisins he will use for a raisin bread recipe.
  If he uses   9 cups of raisins, how many loaves will he make?

• 4
• 5
• 6
• 7

A mixture of purple paint contains 6 teaspoons of red paint and 15 teaspoons of blue paint. To make the same shade of purple paint using 35 teaspoons of blue paint, how much red paint would you need? Use the double number line diagram to help if needed.

• 12 teaspoons

• 14 teaspoons

• 18 teaspoons

• 26 teaspoons