# Intermediate Algebra

posted by .

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 -

distance=velocity*time
distanceupstream=(29+Vs)time
distancedownstream=(29-Vs)time

set the distances to bd 140 downstream, and 92 up

140=(29+vs)time
92=(29-Vs)time

or 140/92 =(29+Vs)/(29-Vs)

92(29+Vs)=140(29-Vs) and you solve for Vs

## Similar Questions

1. ### Math (urgent) hw due tommorow!

The speed of a stream is 3 km/h. A boat travels 25 km upstream in the same time it takes to travel 35 km downstream. What is the speed of the boat in still water?
2. ### algebra

a boat goes 16 Km upstream and 24 Km downstream in 6hrs.it can go 12Km upstream and 36 Km in same time.find the speed of boat in still water and speed of the stream
3. ### algebra

a boat goes 16 Km upstream and 24 Km downstream in 6hrs.it can go 12Km upstream and 36 Km in same time.find the speed of boat in still water and speed of the stream
4. ### Algebra

A riverboat cruise line has a boat that can travel 76 mi downstream in the same time that it takes to travel 52 mi upstream. The speed of the current in the river is 1.5 mph. Find the speed of the boat in still water.
5. ### math

The speed of a stream is 6 mph. If a boat travels 52 miles downstream in the same time that it takes to travel 26 miles upstream, what is the speed of the boat in still water?
6. ### maths

A boat goes 12 km upstream and 40 km downstream in 8 hours. It can go 16 km upstream and 32 km downstream is the same time. Find the speed of the boat in still water and the speed of the stream.
7. ### math(algebra)

a boat can travel at a speed of 15 kph in still water. the boat travels 40 km downstream in a river at the same time it takes to travel 25 km upstream. what is the speed of the river?
8. ### Algebra

The speed of the current is 4kph. A boat travels 6km upstream in the same time it takes to travel 10km downstream. What is the spees of the boat in still water?
9. ### Algebra

The speed of the current is 4kph. A boat travels 6km upstream in the same time it takes to travel 10km downstream. What is the spees of the boat in still water?
10. ### math

The speed of a river current is 4 mph. IF a boat travels 20 miles downstream in the same time that it takes to travel 10 miles upstream, find the speed of the boat in still water.

More Similar Questions