Question 228332
D=RT
710=75T+85(T-2)
710=75T+85T-170
160T=710+170
160T=880
T=880/160
T=5.5 HOURS ANS. FOR THE FIRST MOTORCYCLIST.
5.5-2=3.5 HOURS FOR THE SECOND CYCLLIST.
PROOF:
710=75*5.5+85*3.5
710=412.5+297.5
710=710