1 / 5

Marathon Race

Marathon Race. By: Eric Hong. Bob and Joe are running a race. What additional info do you need?. What info do you still need?. Bob is 300m/hour faster than Joe is. However, he gets tired 300 minutes later, and jogs 600m/hour slower than Joe for the rest of this race. .

karli
Download Presentation

Marathon Race

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. Marathon Race By: Eric Hong

  2. Bob and Joe are running a race. What additional info do you need?

  3. What info do you still need?

  4. Bob is 300m/hour faster than Joe is. However, he gets tired 300 minutes later, and jogs 600m/hour slower than Joe for the rest of this race. Joe runs 3.7 kilometers/hour

  5. Solution Joe 42.84955592km/3.7km=11.58096106 hours 11 hours 58.96106/5*3 minutes= 35.376636 minutes 11 hours 35.376636 minutes Bob 4 km*5hr= 20km (42.84955592km-20km)/3.1km=22.84955592km left/3.1km= 5 hr+7.370825548=12.37082555 hrs. 12 hours 37.082555*3/5= 22.249533 minutes Bob’s Time-Joe’s Time= 12 hours 22.249533 minutes - 11 hours 35.376636 minutes 47.3918694 minutes, the time Joe beats Bob. Distance of race Diameter=12km, so 12+6+6+semi-circle=distance of race Semicircle=18.84955592km 12km+6km+6km+18.84955592km= 42.84955592km

More Related