To make yummy fruit punch, use 2 cups of grape juice for every 3 cups of apple juice. If you already have 12 cups of apple juice, how many cups of grape juice will you need to make fruit punch?

In this lesson you will learn to solve ratio problems by using double number lines.

2 ways to solve ratio problems Let’s Review 1) Table with addition Cups of grape juice2468 Cups of apple juice

Let’s Review x4 Cups of grape juice28 Cups of apple juice312 2) Table with multiplication

Let’s Review A Common Mistake Adding the same number to both rows +9 Cups of grape juice2 Cups of apple juice312 Cups of grape juice211 Cups of apple juice312

Let’s Review Core Lesson To make yummy fruit punch, use 2 cups of grape juice for every 3 cups of apple juice. If you already have 12 cups of apple juice, how many cups of grape juice will you need to make fruit punch? cups of grape juice cups of apple juice

Let’s Review Core Lesson cups of grape juice cups of apple juice x4

In this lesson you have learned to solve ratio problems by using a double number line.

Let’s Review Guided Practice To make lemonade, use 1 cup of lemon juice for every 3 cups of water. If you use 12 cups of water, how many cups of lemon juice will you need? Use a double number line to solve.

Let’s Review Guided Practice

Let’s Review Extension Activities A fruit punch recipe requires 2 cups of grape juice for every 3 cups of apple juice. How many cups of apple juice will you need if you use 9 cups of grape juice?

Let’s Review Extension Activities In lemonade, the ratio of lemon juice to water is 1 to 3. How many cups of lemon juice will you need if you use 10 cups of water?

Let’s Review Extension Activities Grandma knits 3 striped sweaters for every 4 total sweaters that she knits. How many total sweaters did she knit if she made 24 striped sweaters? Use a double number line to solve.

Let’s Review Quick Quiz Cereal costs $5 for 3 boxes. How many boxes of cereal could you buy for $30? Use a double number line to solve. In a preschool class, there are 3 girls for every 2 boys. If there are 6 boys in the class, how many girls are in the class? Use a double number line to solve.