Question 92673
270=3*X+3(X-20) MILEAGE=R*T+R*T.
270=3X+3X-60
6X=270+60
6X=330
X=330/6
X=55 MPH FOR ADAM'S SPEED.
55-20=35 MPH FOR MIKE'S SPEED.
PROOF'270=3*55+3*35
270=165+105
270=270