Posted by Wanda on .
The speed of a boat in still water is 29mph. if the boat travels 140mph downstream in the same time that it takes to travel 92miles upstream, find the speed of the stream.

Intermediate Algebra 
bobpursley,
distance=velocity*time
distanceupstream=(29+Vs)time
distancedownstream=(29Vs)time
set the distances to bd 140 downstream, and 92 up
140=(29+vs)time
92=(29Vs)time
or 140/92 =(29+Vs)/(29Vs)
92(29+Vs)=140(29Vs) and you solve for Vs