SOLUTION: homework question help
A barge moves 11 km/h in still water. It travels 50 km up river and 50km down river in a total of 22 h. What is the speed of the current
Algebra.Com
Question 448711: homework question help
A barge moves 11 km/h in still water. It travels 50 km up river and 50km down river in a total of 22 h. What is the speed of the current
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
50/(11+c)+50/(11-c)=22
50(11-c)+50(11+c)=22(121-c2)
550-50c+550+50c=2662-22c2
22c2=2662-1100
22c2=1562
c2=71
c=√71=8.43
The current is 8.43 kph..
RELATED QUESTIONS
A barge moves 6km/h in still water. It travels 51 km upriver and 51 km downriver in a... (answered by sheldonxu)
Marie and Marco are paddling a canoe together. In still water, the pair moves at a speed... (answered by josgarithmetic)
A barge moves at 7kmh in still waters. If it travels 45 km up stream and 45 km... (answered by ewatrrr,Alan3354)
a barge move 6km/h in still water. it travels 15 km upstream and 15 km downstream in a... (answered by solver91311)
A river is flowing at a rate of 5 km/h. A boat travels 12 km upstream and 10 km... (answered by josgarithmetic)
River is running at 2 km/h. It look a man twice as long to row up as to row down the... (answered by ankor@dixie-net.com)
Hi,
I would like to just start off by saying thank you for your help.
My question... (answered by josgarithmetic,MathTherapy)
A river barge travels at an average of 8 miles per hour in still water. The barge travels (answered by ankor@dixie-net.com,lwsshak3)
A boat moves 28 km/h in still water. It travels 80 km upstream and 80 km downstream in a... (answered by mananth)