1 / 6

Warm up

Warm up. 1. 7x + 2y = 3 4x + 3y = 11 2. 2(x-y)= 2 3(x + 4y)= 18. Lesson 9-6 Wind & Water Current Problems. Objective: To use systems of equation to solve wind & water current problems. . Current Problems. Distance = Rate x Time r = rate of the boat/plane

fancy
Download Presentation

Warm up

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. Warm up • 1. 7x + 2y = 3 • 4x + 3y = 11 • 2. 2(x-y)= 2 • 3(x + 4y)= 18

  2. Lesson 9-6 Wind & Water Current Problems Objective: To use systems of equation to solve wind & water current problems.

  3. Current Problems • Distance = Rate x Time • r = rate of the boat/plane • w = wind/water current • with the current r + w • against the current r - w

  4. Example • A plane can fly 3750 km in 3 h with the wind. The plane takes 5 h to travel the same distance flying against the wind. Find the rate of the plane in still air and the speed of the wind. • 3(r + w) = 3750 r + w = 1250 • 5(r – w) = 3750 r – w = 750 • 2r = 2000 r = 1000, w = 250

  5. Example • Brad can row a boat 30 km downstream in 3 h, but it takes him 5 h to return. What is Brad's rate in still water? What is the rate of the current?

More Related