Question 684330
D=RT
380=[(X+3+X)]*4
380=[2X+3)4
380=8X+12
8X=380-12
8X=368
X=368/8
X=46 MPH IS THE SPEED OF THE SLOWER VEHICLE.
46+3=49 MPH IS THE SPEED FOR THE FASTER VEHICLE.
PROOF:
380=(46+49)4
380=95*4
380=380