Hard algebra word problem.?
A Boat travels 10 miles upstream in 2 hours. Going downstream, it can travel 26 miles in the same amount of time. Find the speed of the current and the speed of the boat in still water.
What is the speed of the current in MPH?
What is the speed of the boat in still water in MPH?
Comments
Let the speed of boat in still waters be x mph and speed of current be y mph
UPSTREAM
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Speed = (x-y) mph
Speed = distance / time = 10/2 = 5
x- y = 5 .......................(A)
DOWNSTREAM
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Speed = x + y mph
Speed = distance / time = 26/2 = 13
x + y = 13 ....................(B)
ADD (A) + (B)
2x = 18
x = 9 mph ANSWER
y = 4 mph ANSWER
I already answered this one! its 0 the boat and current is still!