Question 228135
D=RT
D=50*T
D=90(T-2)
SET THE 2 DISTANCES EQUAL & SOLVE FOR T
50T=90(T-2)
50T=90T-180
50T-90T=-180
-40T=-180
T=-180/-40
T=4.5 HOURS AFTER THE FIRST CAR LEAVE THE SECOND CAR WILL OVERTAKE IT.
PROOF:
50*4.5=90(4.5-2)
225=90*2.5
225=225