# algebra

A boat can travel 16 km/h against the current.The same boat can travel 30 km/h with the current.find the rate of the boat in still water and the rate of the current.
Could someone help me.it seams like an easy problem, but I am not getting there.Thank YU very much.

1. 0
2. 1
1. speed of boat in still water ---- x km/h
speed of current ------- y km/h

x+y = 30
x-y = 16
2x = 46
x = 23
then y = 7

speed in still water is 23 km/h, speed of current is 7 km/h

1. 0
posted by Reiny
2. 30

1. 0
posted by mawande

## Similar Questions

1. ### Math! Algebra 1!

A boat is traveling in a river with a current that has a speed of 1.5 km/h. In one hour, the boat can travel twice the distance downstream as it can travel upstream. How long will it take the boat to travel 100 km in still water?
2. ### Physics help ASAP please

A boat needs to travel straight across a river. The current is 10 km/hr. The boat can travel at 16 km/hr. What is the velocity of the boat relative to the bank?
3. ### physics

A boater wants to head straight across a river that has a current of 3 km/hr. If the top speed of the boat in still water is 4 km/hr. 1.find the direction the boat must travel into the current to go straight across the river? 2.

A boat is traveling in a river with a current that has a speed of 1.5 km/h. In one hour, the boat can travel twice the distance downstream as it can travel upstream. What is the boat's speed in still water?
5. ### algebra

A boat can travel 38 mph in still water. If the boat can travel 100 miles with the current in the same time it can travel 80 miles against the current, find the rate of the current r in miles per hour.
6. ### physics

A boat is ravelling in a river with a current of 3 km/hr. The boat is capable of travelling at 10 km/hr in still water. How long will it take the boat to travel 7km upstream
7. ### Physics

A boat can travel 2.85 m/s in still water. If the boat points its bow directly across stream whose current is .95 m/s, what is the velocity of the boat relative to the shore?
8. ### math

The current river flows at rate of 4mph. In order for a boat to travel 24 miles up river and then return in a total of 5 hours how fast must the boat be able to travel in still water?
9. ### 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.
10. ### Physics

A boat that can travel at 4.0 km/hr in still water crosses a river with a current of 1.8 km/h. at what angle must the boat be pointed upstream to travel straight across the river? Confused on how to even set it up!

More Similar Questions