Posted by **Kelvin** on Thursday, March 31, 2011 at 11:48am.

a boat moves through still wather at x kilometers(km) per hour. it travels 24km up stream against a current of 2km per hour and then returns with the current. The rate upstream is x-2 because the boat moves against the current and the rate downstream is x+2 because the boat moves with the current.

36.write an expression for the total time for the round trip.

37.write your answer to exercise 36 as a single rotional expression.

28.use your answer to exercise 37 to find how long the round trip will take if the boat travels 10kilometers per hour through still water

## Answer This Question

## Related Questions

- Algebra - a boat moves through still wather at x kilometers(km) per hour. it ...
- math - a boat moves 9 kilometers upstream in the same amount of time it moves 20...
- Math - A boat moves 7 kilometers upstream in the same amount of time it moves 17...
- Algebra - The current of a river moves at 3 miles per hour. It takes a boat 3 ...
- Intermediate Algebra - in still water, a paddle boat averages 10 miles per hour...
- Math - A speed boat travels at a rate of 20 km per hour in still water. It ...
- word problems - A canoe in still water travels at a rate of 12 miles per hour. ...
- Algebra - A boat travels with the current at a speed of 10 miles per hour with ...
- math - A boat's crew rowed 12 miles downstream, with the current, in 1.5 hours. ...
- PLEASE HELP MEEE!!!! - A canoe in still water travels at a rate of 12 miles per ...

More Related Questions