Astudent is running a 5-kilometer race. he runs 1 kilometer every 3 minutes. select the function that describes his distance from the finish line after x minutes. f(x) = − 1/3x +5 f(x) = − 1/5x + 3 f(x) = 1/5x + 5 f(x) = 1/3x + 3 plz explain

A. f(x) = − 1/3x +5  

A student is running a 5-kilometer race, the total distance is 5 km.

He runs 1 kilometer every 3 minutes.  

So the speed will be,

Speed = Distance/time

Speed = 1/3

Speed is the rate of change or slope and as the total distance is decreasing with time so it will in negative, thus;

Slope = -1/3

So when on x axis time and y axis distance is represented, 5 will be the y intercept.

Then put all the values in slope intercept form of straight line,

y = mx + c

y = -1/3x + 5

y = 5 -1/3x

answer: 1 2 3 6

step-by-step explanation:

1x6=6 2x3=6

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )