Question 885335
r = speed of truck
t = time for the truck


__________________speed___________time__________distance____Equations
CAR_______________r+20____________t-2___________350_________{{{(r+20)(t-2)=350}}}
TRUCK______________r______________t_____________350___________{{{rt=350}}}


The system of equations will produce a quadratic equation, and you will need the truck's equation for substitution two ways.