if t=5.5h whad d =.31km what is t when d =117 km

Question

if t = 18d and t=5.5 what is d.

Answer 1

Let d=vt where v is constant (km/h), then 0.31=5.5v, v=0.31/5.5km/h. So d=(0.31/5.5)t.

When d=117, 117=(0.31/5.5)t, t=117(5.5/0.31)=2075.8h approx.

This can be done by simple direct proportion arithmetic.

t/d=5.5/0.31=t/117, t=117(5.5/0.31)=2075.8h.

If t=18d and t=5.5, 5.5=18d, d=5.5/18=11/36=0.3056 approx.