Thursday

October 30, 2014

October 30, 2014

Posted by **MNHS MNHS** on Tuesday, November 12, 2013 at 8:35pm.

(w/ solution pls... tnx)

- motion problem -
**Reiny**, Tuesday, November 12, 2013 at 10:45pmrate of paddling in still water ---- x km/h

speed of the river -------------- y km/h

x-y = 6

x = y+6

distance uprstream = 6(10) = 60 km

distance downstream = 4(x+y) = 4(y+6 + y)

= 8y + 24

8y + 24 = 60

y = 4.5

x = 10.5

Actually I did a lot of extra work.

The question was , how far does he go upstream

all I needed was 10(6) = 60 km

btw, in metric we say km/h not kph

**Answer this Question**

**Related Questions**

word problem - A motor boat took 4 hours to make a downstream trip with a ...

Math - How do you set this up? Solve the system using substitution: A boat ...

physics - Sheena can row a boat at 3.13 mi/h in still water. She needs to cross ...

physics - Sheena can row a boat at 2.90 mi/h in still water. She needs to cross ...

PHYSICS - Sheena can row a boat at 2.91 mi/h in still water. She needs to cross ...

PHYSICS - Sheena can row a boat at 2.91 mi/h in still water. She needs to cross ...

UPSTREAM - THIS EXURSION WITH A BOAT TRAVEL 35KM UPSTREAM AND THEN BACK AGAIN IN...

math urgent - a motorboat takes 4 hrs to travel 256 miles going upstream. the ...

math - a boat travels 4 km upstream and 4 km back. the time for the round trip ...

math - a motorboat takes 4 hours to travel 256miles going up stream. the return ...