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If a canoe travels 6 miles per hour downstream, and 2 miles per hour p stream, how many miles per hour will it go in still water?

Answer :

sqdancefan

Answer:

  4 miles per hour

Step-by-step explanation:

The given relations allow us to write two equations.

__

The downstream speed is the sum of the canoe speed and the stream speed:

  6 = c + s

The upstream speed is the difference of the canoe speed and the stream speed:

  2 = c - s

Adding these two equations, we get ...

  8 = 2c

  4 = c . . . . . divide by 2

The canoe speed in still water is 4 miles per hour.

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