Proportional Relationships and Percentages with Double Number Lines

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

Refer to the double number line:

If Kim makes 8 loaves of bread, how many cups of raisins did she use?

• 4

• 16

• 12

• 24

The double number line shows that a water park allows 18 people to go down their giant water slide in 3 minutes. How long would it take 12 people to go down the slide?

• 1 minute

• 2 minutes

• 3 minutes

• No way to find out.

If you use 9 cups of raisins, how many loaves of bread can you make?

• 4

• 5

• 6

• 7

Which numbers come next on this double number line?

• Sugar: 12

  Flour: 8

• Sugar: 12

  Flour: 18

• Sugar: 8

  Flour: 12

• Sugar: 12

  Flour: 12

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• 0.125 dollars per pound

Will spent $3.75 for 3 pounds of gummy bears. What is his unit rate in dollars per pound?

• $1.25 per pound

• $1 per pound

• $2 per pound

• $1.50 per pound

The car travels 440 miles in 8 hours. What is the unit rate?

• 12 miles in 1 hour

• 55 miles in 1 hour

• 44 miles in 1 hour

• 110 miles in 1 hour.

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 6 of red paint?

• 10

• 5

• 15

• 7

What is the ratio represented in this number line for sugar to flour

• Sugar: Flour

  2 : 3

• Sugar: Flour

  3 : 2

• Four : Sugar 8

  3 : 2

• I have no idea!