A boat travels 20 miles up the river in same amount of time it takes to travel 28 miles down the same river. If the current is 2 miles per hour, what is speed of the boat in still water?

Question

mrnood · Answer

speed = distance/time

speed upstream = Vstill - 2
speed downstream = Vstill +2

for upstream                Vstill-2 = 20/t
for downstream           Vstill+2 = 28/t

since t is the same for both journey you can solve for Vstill

anonymous · Answer

D=RT?

mrnood · Answer

Whatever the abbreviations you use

speed = distance/time, distance = speed * time, time = distance/speed

(do you mean D=RT "Distance = Rate*Time"?)

anonymous · Answer

yes, I have to do the little table and then solve and stuff, but I forgot where to put the #s

anonymous · Answer

x=12! Yaaa y, I did it! lol

mrnood · Answer

Well done - that's correct!

anonymous · Answer

Can you help me with the next one?