1. 2-7 Solving Proportions

2. Proportion: an equation that states that two ratios are equal
Proportion: an equation that states that two ratios are equal. 𝑎 𝑏 = 𝑐 𝑑 , 𝑤ℎ𝑒𝑟𝑒 𝑏≠0 𝑎𝑛𝑑 𝑑≠0 Read as: a is to b as c is to d

3. Problem 2: Solving Proportion Using the Cross Products Property
4 3 = 8 𝑥

4. 𝑦 3 = 3 5

5. Problem 3: Solving a Multi-Step Proportion
𝑏−8 5 = 𝑏+3 4

6. 𝑛 5 = 2𝑛+4 6

7. Problem 4: Using a Proportion to Solve a Problem
A portable media player has 2 gigabytes of storage and can hold about 500 songs. A similar but larger media player has 80 gigabytes of storage. About how many songs can the larger media player hold?

8. An 8-oz can of orange juice contains about 97 mg of vitamin C
An 8-oz can of orange juice contains about 97 mg of vitamin C. About how many milligrams of vitamin C are there in a 12-oz can of orange juice

9. Brain Pop Video