Question 210768
D=RT
D=40(T+1/60)
D=45(T-1/60)
40T+40/60=45T-45/60
40T-45T=-45/60+40/60
-5T=-5/60
5T=1/15
T=(1/15)/5
T=1/15*5
T=5/15
T=1/3 HR.
D=40(1/3+1/60)
D=40(20+1)/60
D=(40*21)/60
D=840/60
D=14 MILES.
ROOF:
D=45(1/3-1/60)
14=45(20-1)/60
14=45(19/60)
14=45*.31667
14~14