Question

(2 points) Cooper Section 11.0 #27 A plane flies at 200 mph for the first and last half hour of a flight. It flies at 400 mph the rest of the time. The route is 1000 miles long. The town of Erehwon is on the route 300 miles before the end. What is the distance of the plane from Erewhon after 1 hours of flying? miles miles When ts the distance from Erewhon is When si s 2, the distance from Erewhon is When 2 s1 s2 the distance from Erewhon is When 2 st s 3, the distance from Erewhon is miles miles Online Math Lab resources for this problem: • High School Math Review • Math 34A Word Problems Math 34B

Answer 1

5019 - The plane flies at 200 miles for the first and last half hour of a flight and 400 mph rest of the the time. Route is 1000 miles long, the town of Erehwon is on the route 300 miles before the end the distance of the plane after t hours 700 - 300 ĪT+ Erenwon t=3 hour distance = speed & time] S ) first I hour plane flies at 200 miles speed - so when tai the distance from Erehwon = 700 - 2000 miles - when I stea the distance from Erehwon = 600-400(t-1/2 miles - when astet the distance from Erehwon = 400 xlt-2) miles 2 - - ardo 2

when 2 1/2 eta 3 The distance from Erehwon = 200+ 1001t-22) miles so at t= 1, 2, 21, and 3 distance from trehwon. are 6oo, o, 200 and 300 respectively.