Marcia and tamara are running a race. marcia has run 4 km. tamara has completed 3 4ths of the race and 2.5 km ahead of marcia. write an equation that represents the relationship between the distances each girl has run.

Step-by-step explanation:

The equations for each runner are, respectively:

Marcia

Tamara

Race length

The relationship between each runner is:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

answer: the answer is b. i think hope i got it correct

step-by-step explanation: