1. Using Tables to Find Equivalent Ratios

2. Example 1: Use a table to find three equivalent ratios of. Strategy: Create a table and multiply or divide both numbers in the ratio by the same number. 8 162432 3 6912 Original Ratio 3 23 3 4 8 28 38 4 The ratios and are all equivalent.

3. Example 2: Use a table to find three equivalent ratios of 40:16. Strategy: Create a table and multiply or divide both numbers in the ratio by the same number. 40 201080 16 8432 Original Ratio 40 ÷ 2 The ratios 40:16, 20:8, 10:4 and 80:32 are all equivalent. 40 ÷ 440 x 2 16÷ 216÷ 416 x 2 Using Tables to Find Equivalent Ratios

4. Using Ratio Tables to Make Predictions Example 3: A group of 10 friends are in line to see a movie. The table shows how much different groups will pay in all. Predict how much the group of 10 will pay. Number in Group 35612 10 Amount Paid ($) 15253060 50 6 < 10 < 12; therefore, the group will pay between $30 and $60. More specifically, we can work with the group of 5 to find an answer to our question. 5 2 = 10 people 25 2 = $50 Therefore, a group of 10 friends will pay $50 5 2 25 2

5. Try these: Use a table to find three equivalent ratios. 1.) 2.) 48 to 36 Using Tables to Find Equivalent Ratios

6. Try this one: Several groups of friends are going to take a shuttle bus to the park. The table below shows how much the different groups will pay in all. Predict how much a group of 15 friends will pay. Number in Group 61218 Bus Fare ($)122436 Using Ratio Tables to Make Predictions