html5-img
1 / 12

2.1 Rates, Ratios, and Proportions

2.1 Rates, Ratios, and Proportions. EQ: How can I use units to understand problems and guide the solution of proportions?. Write and use ratios, rates, and unit rates Write and solve proportions. Objectives.

kemp
Download Presentation

2.1 Rates, Ratios, and Proportions

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. 2.1 Rates, Ratios, and Proportions EQ: How can I use units to understand problems and guide the solution of proportions?

  2. Write and use ratios, rates, and unit rates • Write and solve proportions. Objectives

  3. ratioa comparison of two quantities by division. The ratio of a to b can be written a:bor , where b ≠ 0. Ratios that name the same comparison are said to be equivalent. • proportionastatement that two ratios are equivalent, such as Vocabulary

  4. Reading Math Read the proportion as “1 is to 15 as x is to 675”.

  5. ratea ratio of two quantities with different units, such as • unit raterate with a second quantity of ___ unit*You can convert any rate to a unit rate. Vocabulary

  6. Example 1 The ratio of the number of bones in a human’s ears to the number of bones in the skull is 3:11. There are 22 bones in the skull. How many bones are in the ears?

  7. Example 2 The ratio of games won to games lost for a baseball team is 3:2. The team has won 18 games. How many games did the team lose?

  8. Example 3 Raulf Laue of Germany flipped a pancake 416 times in 120 seconds to set the world record. Find the unit rate. Round your answer to the nearest hundredth. The unit rate is about 3.47 flips/s.

  9. Example 4 Cory earns $52.50 in 7 hours. Find the unit rate. The unit rate is $7.50/hour.

  10. cross productsIn the proportion , the products and ()Ex: Vocabulary

  11. Example 5 Solve each proportion. B. A.

  12. Cwk/Hwk Txtbkpp. 35-38 #2-6,14,16,44-56,59,61

More Related