7
-7
-343
343
The answer would be option C. -343
Hope this helps
-Maranda
The answer to the equation is m= -4
Let x represent speed of kayak in the still water.
We have been given that a kayaker paddles 2 km upstream in the same time that it takes to paddle 3 km downstream. The average speed of the current is 1 km/h.
Speed of kayak upstream would be speed of kayak in still water minus speed of the current that is .
Speed of kayak downstream would be speed of kayak in still water plus speed of the current that is .
Time taken to travel 2 km upstream would be .
Time taken to travel 3 km upstream would be .
Since both times are equal, so we can equate both expressions as:
Cross multiply:
Therefore, the average speed of Kayak in still water is 5 km per hour.