Posted by **mandy** on Monday, November 29, 2010 at 11:21pm.

a motorboat takes 4 hrs to travel 256 miles going upstream. the return trip takes 2 hours going down stream. what is the rate of the boat in still water and what is the rate current.

rate of the boat in still water=mi/hr

rate of the current=mi/hr

- math urgent -
**Reiny**, Monday, November 29, 2010 at 11:30pm
rate in still water --- x mph

raate of current ---- y mph

#1: 4(x-y) = 256

x-y = 64

#2: 2(x+y) = 256

x+y = 128

add them .....

I will let you finish, let me know what you get.

(BTW, the rates seem very unreasonable as you will see)

- math urgent -
**Anonymous**, Thursday, December 9, 2010 at 7:55am
8...? not sure..

- math urgent -
**Anonymous**, Thursday, December 9, 2010 at 8:09am
96...? ahah..

still unsure.

## Answer this Question

## Related Questions

- math - a motorboat takes 4 hours to travel 256miles going up stream. the return ...
- algebra - A boat traveling on the Snake River travels 24 miles upstream in 3 ...
- Math - Can you please help with correct format for the following?: re: d = rt ...
- math - a motorboat takes 5 hours to travel 45km downstream and then 18 km ...
- word problem - A motor boat took 4 hours to make a downstream trip with a ...
- Math - A river flows at the rate of 2 mph. If a motorboat can travel 12 miles ...
- Help...More Math Help!!!...Please! - A kayaker paddled 2 hours with a 6 mph ...
- Math 111 - It takes a motorboat 1 1/3 hours to go 20 miles downstream and 2 2/9 ...
- Math - How do you set this up? Solve the system using substitution: A boat ...
- math - A penguin swimming with the ocean current in search of food takes 1 hour ...