This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: The total amount invested in bonds is 10,0002,500=7,500. A motor boat heads upstream a distance of 50 miles on Fraser River, whose current is running at 4 miles per hour. The trip up and back takes 6 hours. Assuming that the motorboat maintained a constant speed relative to the water, what was its speed? Denote v velocity of the boat. Velocity mph Distance miles Time= Dist./Vel. Upstream v4 50 50/( v4) Downstream v+ 4 50 50/( v +4) Set up a table. The total time traveled is 6 hours. We get: Solve this for v. Solve by using a quadratic formula. The negative answer does not make sense, so we have the velocity: Check. So it takes 3.68 hours upstream and 2.32 hours downstream. That is a total of 6 hours....
View
Full Document
 Fall '08
 Staff
 Equations, Miles per hour, motor boat heads, Time= mph miles

Click to edit the document details