1 / 9

Math Pacing

Ratios and Proportions. Math Pacing. Solve each equation 1. 2. 3. 4. Ratios and Proportions. Ratios and Proportions. Ratios and Proportions. A ratio is a comparison of two numbers by division. The ratio of x to y can be expressed in the following ways:. Ratios and Proportions.

vladimir-holman
Download Presentation

Math Pacing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ratios and Proportions Math Pacing Solve each equation 1. 2. 3. 4.

  2. Ratios and Proportions Ratios and Proportions

  3. Ratios and Proportions A ratio is a comparison of two numbers by division. The ratio of x to y can be expressed in the following ways: Ratios and Proportions

  4. Ratios and Proportions Ratios are often expressed in simplest form. For example, the recipe stated that for 4 servings you need 2 cups of milk. The ratio of serving to milk may be written as: 4 to 2 4 : 2 or Written in simplest form, the ratio of servings to milk would be: 2 to 1 2 : 1 or Ratios and Proportions

  5. Ratios and Proportions Suppose you wanted to double the recipe to have 8 servings. The amount of milk required would be 4 cups. The ratio of servings to milk is When this ratio is simplified, the ratio is Notice that this ratio is equal to the original ratio. Ratios and Proportions

  6. Ratios and Proportions An equation stating that two ratios are equal is called a proportion. So we can state that is a proportion. Ratios and Proportions

  7. Determine whether the ratios and form a proportion. Determine Whether Ratios Form a Proportion Example 6-1a Answer:The ratios are equal. Therefore, they form a proportion.

  8. Do the ratios and form a proportion? Example 6-1b Determine Whether Ratios Form a Proportion Answer: The ratios are not equal. Therefore, they do not form a proportion.

  9. Ratios and Proportions Another way to determine whether two ratios form a proportion is to use cross products. If the cross products are equal, then the ratios form a proportion. Ratios and Proportions You are using the Multiplicative Property of Equality!!

More Related