The speed of a stream is 3 mph. A boat travels 4 miles upstream in the same time it takes to travel 10 miles downstream. What is the speed of the boat in still water?
1 Answer
this is a motion problem that usually involves
Explanation:
When we do these type of problems it is very handy for us to create a small chart of our variables and what we have access to.
The slower boat is the one going upstream let us call it
The faster boat is
we do not know the speed of the boat let us call that
we can equalize them to find the speed of the boat without the other factors bothering us now :)
now we distribute...
move our variable to one side to isolate it further.
we divide by a form of one to isolate the variable further (remember to apply to both sides)