Question 743551
D=RT
260=54T+50(5-T)
260=54T+250-50T
260-250=4T
10=4T
T=10/4
T=2.5 HOURS @ 54MPH.
5-2.5=2.5 HOURS @ 50MPH.
PROOF:
260=54*2.5+50*2,5
260=135+125
260=260