Answer:
D(x) = 3 + 0.05*(80−t)
Explanation:
We want to find a relation between D, distance, and t, temperature.
Distance follows the equation:
D(x) = 0.5*x
where x is average speed.
Average speed is modeled by:
S(t) = 6 + 0.1*(80−t)
Replacing x = S(t):
D(x) = 0.5*[6 + 0.1*(80−t)]
D(x) = 0.5*6 + 0.5*0.1*(80−t)
D(x) = 3 + 0.05*(80−t)