Question 1041988
RT=D Travel Rates Rule


<pre>
ASSIGN VARIABLE VALUES
r      rate plane B
k      35 mph
h      4 hours
d      2940 distance to consume


                RATE           TIME         DISTANCE
PLANE A         r+k             x            (r+k)x
PLANE B         r               y             ry
TOTAL                           h             d
</pre>

Form the system of equation in the unknown variable times, x and y, and solve.