Question 1045468
<pre>
r, regular rate --- unknown quantity for this example
f, fraction of regular rate  (assumed using either regular fraction OR decimalized)
t, regular time expected ----- unknown also in this example
h, amount of more time than regular
d, distance for the trip
</pre>

<pre>
Conditions             RATE       TIME      DISTANCE
REGULAR WEATHER         r           t        d
INCLEMENT WTHR          (1-f)r     t+h       d
</pre>


This is a typical type of travel rates example.  Form the two equations and solve for t and r.


{{{system(rt=d,(1-f)r(t+h)=d)}}}